Uploaded Test files

venv/Lib/site-packages/notebook/static/components/codemirror/addon/comment/comment.js

@@ -0,0 +1,209 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var noOptions = {};
+  var nonWS = /[^\s\u00a0]/;
+  var Pos = CodeMirror.Pos;
+
+  function firstNonWS(str) {
+    var found = str.search(nonWS);
+    return found == -1 ? 0 : found;
+  }
+
+  CodeMirror.commands.toggleComment = function(cm) {
+    cm.toggleComment();
+  };
+
+  CodeMirror.defineExtension("toggleComment", function(options) {
+    if (!options) options = noOptions;
+    var cm = this;
+    var minLine = Infinity, ranges = this.listSelections(), mode = null;
+    for (var i = ranges.length - 1; i >= 0; i--) {
+      var from = ranges[i].from(), to = ranges[i].to();
+      if (from.line >= minLine) continue;
+      if (to.line >= minLine) to = Pos(minLine, 0);
+      minLine = from.line;
+      if (mode == null) {
+        if (cm.uncomment(from, to, options)) mode = "un";
+        else { cm.lineComment(from, to, options); mode = "line"; }
+      } else if (mode == "un") {
+        cm.uncomment(from, to, options);
+      } else {
+        cm.lineComment(from, to, options);
+      }
+    }
+  });
+
+  // Rough heuristic to try and detect lines that are part of multi-line string
+  function probablyInsideString(cm, pos, line) {
+    return /\bstring\b/.test(cm.getTokenTypeAt(Pos(pos.line, 0))) && !/^[\'\"\`]/.test(line)
+  }
+
+  function getMode(cm, pos) {
+    var mode = cm.getMode()
+    return mode.useInnerComments === false || !mode.innerMode ? mode : cm.getModeAt(pos)
+  }
+
+  CodeMirror.defineExtension("lineComment", function(from, to, options) {
+    if (!options) options = noOptions;
+    var self = this, mode = getMode(self, from);
+    var firstLine = self.getLine(from.line);
+    if (firstLine == null || probablyInsideString(self, from, firstLine)) return;
+
+    var commentString = options.lineComment || mode.lineComment;
+    if (!commentString) {
+      if (options.blockCommentStart || mode.blockCommentStart) {
+        options.fullLines = true;
+        self.blockComment(from, to, options);
+      }
+      return;
+    }
+
+    var end = Math.min(to.ch != 0 || to.line == from.line ? to.line + 1 : to.line, self.lastLine() + 1);
+    var pad = options.padding == null ? " " : options.padding;
+    var blankLines = options.commentBlankLines || from.line == to.line;
+
+    self.operation(function() {
+      if (options.indent) {
+        var baseString = null;
+        for (var i = from.line; i < end; ++i) {
+          var line = self.getLine(i);
+          var whitespace = line.slice(0, firstNonWS(line));
+          if (baseString == null || baseString.length > whitespace.length) {
+            baseString = whitespace;
+          }
+        }
+        for (var i = from.line; i < end; ++i) {
+          var line = self.getLine(i), cut = baseString.length;
+          if (!blankLines && !nonWS.test(line)) continue;
+          if (line.slice(0, cut) != baseString) cut = firstNonWS(line);
+          self.replaceRange(baseString + commentString + pad, Pos(i, 0), Pos(i, cut));
+        }
+      } else {
+        for (var i = from.line; i < end; ++i) {
+          if (blankLines || nonWS.test(self.getLine(i)))
+            self.replaceRange(commentString + pad, Pos(i, 0));
+        }
+      }
+    });
+  });
+
+  CodeMirror.defineExtension("blockComment", function(from, to, options) {
+    if (!options) options = noOptions;
+    var self = this, mode = getMode(self, from);
+    var startString = options.blockCommentStart || mode.blockCommentStart;
+    var endString = options.blockCommentEnd || mode.blockCommentEnd;
+    if (!startString || !endString) {
+      if ((options.lineComment || mode.lineComment) && options.fullLines != false)
+        self.lineComment(from, to, options);
+      return;
+    }
+    if (/\bcomment\b/.test(self.getTokenTypeAt(Pos(from.line, 0)))) return
+
+    var end = Math.min(to.line, self.lastLine());
+    if (end != from.line && to.ch == 0 && nonWS.test(self.getLine(end))) --end;
+
+    var pad = options.padding == null ? " " : options.padding;
+    if (from.line > end) return;
+
+    self.operation(function() {
+      if (options.fullLines != false) {
+        var lastLineHasText = nonWS.test(self.getLine(end));
+        self.replaceRange(pad + endString, Pos(end));
+        self.replaceRange(startString + pad, Pos(from.line, 0));
+        var lead = options.blockCommentLead || mode.blockCommentLead;
+        if (lead != null) for (var i = from.line + 1; i <= end; ++i)
+          if (i != end || lastLineHasText)
+            self.replaceRange(lead + pad, Pos(i, 0));
+      } else {
+        self.replaceRange(endString, to);
+        self.replaceRange(startString, from);
+      }
+    });
+  });
+
+  CodeMirror.defineExtension("uncomment", function(from, to, options) {
+    if (!options) options = noOptions;
+    var self = this, mode = getMode(self, from);
+    var end = Math.min(to.ch != 0 || to.line == from.line ? to.line : to.line - 1, self.lastLine()), start = Math.min(from.line, end);
+
+    // Try finding line comments
+    var lineString = options.lineComment || mode.lineComment, lines = [];
+    var pad = options.padding == null ? " " : options.padding, didSomething;
+    lineComment: {
+      if (!lineString) break lineComment;
+      for (var i = start; i <= end; ++i) {
+        var line = self.getLine(i);
+        var found = line.indexOf(lineString);
+        if (found > -1 && !/comment/.test(self.getTokenTypeAt(Pos(i, found + 1)))) found = -1;
+        if (found == -1 && nonWS.test(line)) break lineComment;
+        if (found > -1 && nonWS.test(line.slice(0, found))) break lineComment;
+        lines.push(line);
+      }
+      self.operation(function() {
+        for (var i = start; i <= end; ++i) {
+          var line = lines[i - start];
+          var pos = line.indexOf(lineString), endPos = pos + lineString.length;
+          if (pos < 0) continue;
+          if (line.slice(endPos, endPos + pad.length) == pad) endPos += pad.length;
+          didSomething = true;
+          self.replaceRange("", Pos(i, pos), Pos(i, endPos));
+        }
+      });
+      if (didSomething) return true;
+    }
+
+    // Try block comments
+    var startString = options.blockCommentStart || mode.blockCommentStart;
+    var endString = options.blockCommentEnd || mode.blockCommentEnd;
+    if (!startString || !endString) return false;
+    var lead = options.blockCommentLead || mode.blockCommentLead;
+    var startLine = self.getLine(start), open = startLine.indexOf(startString)
+    if (open == -1) return false
+    var endLine = end == start ? startLine : self.getLine(end)
+    var close = endLine.indexOf(endString, end == start ? open + startString.length : 0);
+    var insideStart = Pos(start, open + 1), insideEnd = Pos(end, close + 1)
+    if (close == -1 ||
+        !/comment/.test(self.getTokenTypeAt(insideStart)) ||
+        !/comment/.test(self.getTokenTypeAt(insideEnd)) ||
+        self.getRange(insideStart, insideEnd, "\n").indexOf(endString) > -1)
+      return false;
+
+    // Avoid killing block comments completely outside the selection.
+    // Positions of the last startString before the start of the selection, and the first endString after it.
+    var lastStart = startLine.lastIndexOf(startString, from.ch);
+    var firstEnd = lastStart == -1 ? -1 : startLine.slice(0, from.ch).indexOf(endString, lastStart + startString.length);
+    if (lastStart != -1 && firstEnd != -1 && firstEnd + endString.length != from.ch) return false;
+    // Positions of the first endString after the end of the selection, and the last startString before it.
+    firstEnd = endLine.indexOf(endString, to.ch);
+    var almostLastStart = endLine.slice(to.ch).lastIndexOf(startString, firstEnd - to.ch);
+    lastStart = (firstEnd == -1 || almostLastStart == -1) ? -1 : to.ch + almostLastStart;
+    if (firstEnd != -1 && lastStart != -1 && lastStart != to.ch) return false;
+
+    self.operation(function() {
+      self.replaceRange("", Pos(end, close - (pad && endLine.slice(close - pad.length, close) == pad ? pad.length : 0)),
+                        Pos(end, close + endString.length));
+      var openEnd = open + startString.length;
+      if (pad && startLine.slice(openEnd, openEnd + pad.length) == pad) openEnd += pad.length;
+      self.replaceRange("", Pos(start, open), Pos(start, openEnd));
+      if (lead) for (var i = start + 1; i <= end; ++i) {
+        var line = self.getLine(i), found = line.indexOf(lead);
+        if (found == -1 || nonWS.test(line.slice(0, found))) continue;
+        var foundEnd = found + lead.length;
+        if (pad && line.slice(foundEnd, foundEnd + pad.length) == pad) foundEnd += pad.length;
+        self.replaceRange("", Pos(i, found), Pos(i, foundEnd));
+      }
+    });
+    return true;
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/comment/continuecomment.js

@@ -0,0 +1,114 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  var nonspace = /\S/g;
+  var repeat = String.prototype.repeat || function (n) { return Array(n + 1).join(this); };
+  function continueComment(cm) {
+    if (cm.getOption("disableInput")) return CodeMirror.Pass;
+    var ranges = cm.listSelections(), mode, inserts = [];
+    for (var i = 0; i < ranges.length; i++) {
+      var pos = ranges[i].head
+      if (!/\bcomment\b/.test(cm.getTokenTypeAt(pos))) return CodeMirror.Pass;
+      var modeHere = cm.getModeAt(pos)
+      if (!mode) mode = modeHere;
+      else if (mode != modeHere) return CodeMirror.Pass;
+
+      var insert = null, line, found;
+      var blockStart = mode.blockCommentStart, lineCmt = mode.lineComment;
+      if (blockStart && mode.blockCommentContinue) {
+        line = cm.getLine(pos.line);
+        var end = line.lastIndexOf(mode.blockCommentEnd, pos.ch - mode.blockCommentEnd.length);
+        // 1. if this block comment ended
+        // 2. if this is actually inside a line comment
+        if (end != -1 && end == pos.ch - mode.blockCommentEnd.length ||
+            lineCmt && (found = line.lastIndexOf(lineCmt, pos.ch - 1)) > -1 &&
+            /\bcomment\b/.test(cm.getTokenTypeAt({line: pos.line, ch: found + 1}))) {
+          // ...then don't continue it
+        } else if (pos.ch >= blockStart.length &&
+                   (found = line.lastIndexOf(blockStart, pos.ch - blockStart.length)) > -1 &&
+                   found > end) {
+          // reuse the existing leading spaces/tabs/mixed
+          // or build the correct indent using CM's tab/indent options
+          if (nonspaceAfter(0, line) >= found) {
+            insert = line.slice(0, found);
+          } else {
+            var tabSize = cm.options.tabSize, numTabs;
+            found = CodeMirror.countColumn(line, found, tabSize);
+            insert = !cm.options.indentWithTabs ? repeat.call(" ", found) :
+              repeat.call("\t", (numTabs = Math.floor(found / tabSize))) +
+              repeat.call(" ", found - tabSize * numTabs);
+          }
+        } else if ((found = line.indexOf(mode.blockCommentContinue)) > -1 &&
+                   found <= pos.ch &&
+                   found <= nonspaceAfter(0, line)) {
+          insert = line.slice(0, found);
+        }
+        if (insert != null) insert += mode.blockCommentContinue
+      }
+      if (insert == null && lineCmt && continueLineCommentEnabled(cm)) {
+        if (line == null) line = cm.getLine(pos.line);
+        found = line.indexOf(lineCmt);
+        // cursor at pos 0, line comment also at pos 0 => shift it down, don't continue
+        if (!pos.ch && !found) insert = "";
+        // continue only if the line starts with an optional space + line comment
+        else if (found > -1 && nonspaceAfter(0, line) >= found) {
+          // don't continue if there's only space(s) after cursor or the end of the line
+          insert = nonspaceAfter(pos.ch, line) > -1;
+          // but always continue if the next line starts with a line comment too
+          if (!insert) {
+            var next = cm.getLine(pos.line + 1) || '',
+                nextFound = next.indexOf(lineCmt);
+            insert = nextFound > -1 && nonspaceAfter(0, next) >= nextFound || null;
+          }
+          if (insert) {
+            insert = line.slice(0, found) + lineCmt +
+                     line.slice(found + lineCmt.length).match(/^\s*/)[0];
+          }
+        }
+      }
+      if (insert == null) return CodeMirror.Pass;
+      inserts[i] = "\n" + insert;
+    }
+
+    cm.operation(function() {
+      for (var i = ranges.length - 1; i >= 0; i--)
+        cm.replaceRange(inserts[i], ranges[i].from(), ranges[i].to(), "+insert");
+    });
+  }
+
+  function nonspaceAfter(ch, str) {
+    nonspace.lastIndex = ch;
+    var m = nonspace.exec(str);
+    return m ? m.index : -1;
+  }
+
+  function continueLineCommentEnabled(cm) {
+    var opt = cm.getOption("continueComments");
+    if (opt && typeof opt == "object")
+      return opt.continueLineComment !== false;
+    return true;
+  }
+
+  CodeMirror.defineOption("continueComments", null, function(cm, val, prev) {
+    if (prev && prev != CodeMirror.Init)
+      cm.removeKeyMap("continueComment");
+    if (val) {
+      var key = "Enter";
+      if (typeof val == "string")
+        key = val;
+      else if (typeof val == "object" && val.key)
+        key = val.key;
+      var map = {name: "continueComment"};
+      map[key] = continueComment;
+      cm.addKeyMap(map);
+    }
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/dialog/dialog.css

@@ -0,0 +1,32 @@
+.CodeMirror-dialog {
+  position: absolute;
+  left: 0; right: 0;
+  background: inherit;
+  z-index: 15;
+  padding: .1em .8em;
+  overflow: hidden;
+  color: inherit;
+}
+
+.CodeMirror-dialog-top {
+  border-bottom: 1px solid #eee;
+  top: 0;
+}
+
+.CodeMirror-dialog-bottom {
+  border-top: 1px solid #eee;
+  bottom: 0;
+}
+
+.CodeMirror-dialog input {
+  border: none;
+  outline: none;
+  background: transparent;
+  width: 20em;
+  color: inherit;
+  font-family: monospace;
+}
+
+.CodeMirror-dialog button {
+  font-size: 70%;
+}

venv/Lib/site-packages/notebook/static/components/codemirror/addon/dialog/dialog.js

@@ -0,0 +1,163 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Open simple dialogs on top of an editor. Relies on dialog.css.
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  function dialogDiv(cm, template, bottom) {
+    var wrap = cm.getWrapperElement();
+    var dialog;
+    dialog = wrap.appendChild(document.createElement("div"));
+    if (bottom)
+      dialog.className = "CodeMirror-dialog CodeMirror-dialog-bottom";
+    else
+      dialog.className = "CodeMirror-dialog CodeMirror-dialog-top";
+
+    if (typeof template == "string") {
+      dialog.innerHTML = template;
+    } else { // Assuming it's a detached DOM element.
+      dialog.appendChild(template);
+    }
+    CodeMirror.addClass(wrap, 'dialog-opened');
+    return dialog;
+  }
+
+  function closeNotification(cm, newVal) {
+    if (cm.state.currentNotificationClose)
+      cm.state.currentNotificationClose();
+    cm.state.currentNotificationClose = newVal;
+  }
+
+  CodeMirror.defineExtension("openDialog", function(template, callback, options) {
+    if (!options) options = {};
+
+    closeNotification(this, null);
+
+    var dialog = dialogDiv(this, template, options.bottom);
+    var closed = false, me = this;
+    function close(newVal) {
+      if (typeof newVal == 'string') {
+        inp.value = newVal;
+      } else {
+        if (closed) return;
+        closed = true;
+        CodeMirror.rmClass(dialog.parentNode, 'dialog-opened');
+        dialog.parentNode.removeChild(dialog);
+        me.focus();
+
+        if (options.onClose) options.onClose(dialog);
+      }
+    }
+
+    var inp = dialog.getElementsByTagName("input")[0], button;
+    if (inp) {
+      inp.focus();
+
+      if (options.value) {
+        inp.value = options.value;
+        if (options.selectValueOnOpen !== false) {
+          inp.select();
+        }
+      }
+
+      if (options.onInput)
+        CodeMirror.on(inp, "input", function(e) { options.onInput(e, inp.value, close);});
+      if (options.onKeyUp)
+        CodeMirror.on(inp, "keyup", function(e) {options.onKeyUp(e, inp.value, close);});
+
+      CodeMirror.on(inp, "keydown", function(e) {
+        if (options && options.onKeyDown && options.onKeyDown(e, inp.value, close)) { return; }
+        if (e.keyCode == 27 || (options.closeOnEnter !== false && e.keyCode == 13)) {
+          inp.blur();
+          CodeMirror.e_stop(e);
+          close();
+        }
+        if (e.keyCode == 13) callback(inp.value, e);
+      });
+
+      if (options.closeOnBlur !== false) CodeMirror.on(dialog, "focusout", function (evt) {
+        if (evt.relatedTarget !== null) close();
+      });
+    } else if (button = dialog.getElementsByTagName("button")[0]) {
+      CodeMirror.on(button, "click", function() {
+        close();
+        me.focus();
+      });
+
+      if (options.closeOnBlur !== false) CodeMirror.on(button, "blur", close);
+
+      button.focus();
+    }
+    return close;
+  });
+
+  CodeMirror.defineExtension("openConfirm", function(template, callbacks, options) {
+    closeNotification(this, null);
+    var dialog = dialogDiv(this, template, options && options.bottom);
+    var buttons = dialog.getElementsByTagName("button");
+    var closed = false, me = this, blurring = 1;
+    function close() {
+      if (closed) return;
+      closed = true;
+      CodeMirror.rmClass(dialog.parentNode, 'dialog-opened');
+      dialog.parentNode.removeChild(dialog);
+      me.focus();
+    }
+    buttons[0].focus();
+    for (var i = 0; i < buttons.length; ++i) {
+      var b = buttons[i];
+      (function(callback) {
+        CodeMirror.on(b, "click", function(e) {
+          CodeMirror.e_preventDefault(e);
+          close();
+          if (callback) callback(me);
+        });
+      })(callbacks[i]);
+      CodeMirror.on(b, "blur", function() {
+        --blurring;
+        setTimeout(function() { if (blurring <= 0) close(); }, 200);
+      });
+      CodeMirror.on(b, "focus", function() { ++blurring; });
+    }
+  });
+
+  /*
+   * openNotification
+   * Opens a notification, that can be closed with an optional timer
+   * (default 5000ms timer) and always closes on click.
+   *
+   * If a notification is opened while another is opened, it will close the
+   * currently opened one and open the new one immediately.
+   */
+  CodeMirror.defineExtension("openNotification", function(template, options) {
+    closeNotification(this, close);
+    var dialog = dialogDiv(this, template, options && options.bottom);
+    var closed = false, doneTimer;
+    var duration = options && typeof options.duration !== "undefined" ? options.duration : 5000;
+
+    function close() {
+      if (closed) return;
+      closed = true;
+      clearTimeout(doneTimer);
+      CodeMirror.rmClass(dialog.parentNode, 'dialog-opened');
+      dialog.parentNode.removeChild(dialog);
+    }
+
+    CodeMirror.on(dialog, 'click', function(e) {
+      CodeMirror.e_preventDefault(e);
+      close();
+    });
+
+    if (duration)
+      doneTimer = setTimeout(close, duration);
+
+    return close;
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/display/autorefresh.js

@@ -0,0 +1,47 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"))
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod)
+  else // Plain browser env
+    mod(CodeMirror)
+})(function(CodeMirror) {
+  "use strict"
+
+  CodeMirror.defineOption("autoRefresh", false, function(cm, val) {
+    if (cm.state.autoRefresh) {
+      stopListening(cm, cm.state.autoRefresh)
+      cm.state.autoRefresh = null
+    }
+    if (val && cm.display.wrapper.offsetHeight == 0)
+      startListening(cm, cm.state.autoRefresh = {delay: val.delay || 250})
+  })
+
+  function startListening(cm, state) {
+    function check() {
+      if (cm.display.wrapper.offsetHeight) {
+        stopListening(cm, state)
+        if (cm.display.lastWrapHeight != cm.display.wrapper.clientHeight)
+          cm.refresh()
+      } else {
+        state.timeout = setTimeout(check, state.delay)
+      }
+    }
+    state.timeout = setTimeout(check, state.delay)
+    state.hurry = function() {
+      clearTimeout(state.timeout)
+      state.timeout = setTimeout(check, 50)
+    }
+    CodeMirror.on(window, "mouseup", state.hurry)
+    CodeMirror.on(window, "keyup", state.hurry)
+  }
+
+  function stopListening(_cm, state) {
+    clearTimeout(state.timeout)
+    CodeMirror.off(window, "mouseup", state.hurry)
+    CodeMirror.off(window, "keyup", state.hurry)
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/display/fullscreen.css

@@ -0,0 +1,6 @@
+.CodeMirror-fullscreen {
+  position: fixed;
+  top: 0; left: 0; right: 0; bottom: 0;
+  height: auto;
+  z-index: 9;
+}

venv/Lib/site-packages/notebook/static/components/codemirror/addon/display/fullscreen.js

@@ -0,0 +1,41 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineOption("fullScreen", false, function(cm, val, old) {
+    if (old == CodeMirror.Init) old = false;
+    if (!old == !val) return;
+    if (val) setFullscreen(cm);
+    else setNormal(cm);
+  });
+
+  function setFullscreen(cm) {
+    var wrap = cm.getWrapperElement();
+    cm.state.fullScreenRestore = {scrollTop: window.pageYOffset, scrollLeft: window.pageXOffset,
+                                  width: wrap.style.width, height: wrap.style.height};
+    wrap.style.width = "";
+    wrap.style.height = "auto";
+    wrap.className += " CodeMirror-fullscreen";
+    document.documentElement.style.overflow = "hidden";
+    cm.refresh();
+  }
+
+  function setNormal(cm) {
+    var wrap = cm.getWrapperElement();
+    wrap.className = wrap.className.replace(/\s*CodeMirror-fullscreen\b/, "");
+    document.documentElement.style.overflow = "";
+    var info = cm.state.fullScreenRestore;
+    wrap.style.width = info.width; wrap.style.height = info.height;
+    window.scrollTo(info.scrollLeft, info.scrollTop);
+    cm.refresh();
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/display/panel.js

@@ -0,0 +1,129 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function (mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function (CodeMirror) {
+  CodeMirror.defineExtension("addPanel", function (node, options) {
+    options = options || {};
+
+    if (!this.state.panels) initPanels(this);
+
+    var info = this.state.panels;
+    var wrapper = info.wrapper;
+    var cmWrapper = this.getWrapperElement();
+    var replace = options.replace instanceof Panel && !options.replace.cleared;
+
+    if (options.after instanceof Panel && !options.after.cleared) {
+      wrapper.insertBefore(node, options.before.node.nextSibling);
+    } else if (options.before instanceof Panel && !options.before.cleared) {
+      wrapper.insertBefore(node, options.before.node);
+    } else if (replace) {
+      wrapper.insertBefore(node, options.replace.node);
+      options.replace.clear(true);
+    } else if (options.position == "bottom") {
+      wrapper.appendChild(node);
+    } else if (options.position == "before-bottom") {
+      wrapper.insertBefore(node, cmWrapper.nextSibling);
+    } else if (options.position == "after-top") {
+      wrapper.insertBefore(node, cmWrapper);
+    } else {
+      wrapper.insertBefore(node, wrapper.firstChild);
+    }
+
+    var height = (options && options.height) || node.offsetHeight;
+
+    var panel = new Panel(this, node, options, height);
+    info.panels.push(panel);
+
+    this.setSize();
+    if (options.stable && isAtTop(this, node))
+      this.scrollTo(null, this.getScrollInfo().top + height);
+
+    return panel;
+  });
+
+  function Panel(cm, node, options, height) {
+    this.cm = cm;
+    this.node = node;
+    this.options = options;
+    this.height = height;
+    this.cleared = false;
+  }
+
+  /* when skipRemove is true, clear() was called from addPanel().
+   * Thus removePanels() should not be called (issue 5518) */
+  Panel.prototype.clear = function (skipRemove) {
+    if (this.cleared) return;
+    this.cleared = true;
+    var info = this.cm.state.panels;
+    info.panels.splice(info.panels.indexOf(this), 1);
+    this.cm.setSize();
+    if (this.options.stable && isAtTop(this.cm, this.node))
+      this.cm.scrollTo(null, this.cm.getScrollInfo().top - this.height)
+    info.wrapper.removeChild(this.node);
+    if (info.panels.length == 0 && !skipRemove) removePanels(this.cm);
+  };
+
+  Panel.prototype.changed = function () {
+    this.height = this.node.getBoundingClientRect().height;
+    this.cm.setSize();
+  };
+
+  function initPanels(cm) {
+    var wrap = cm.getWrapperElement();
+    var style = window.getComputedStyle ? window.getComputedStyle(wrap) : wrap.currentStyle;
+    var height = parseInt(style.height);
+    var info = cm.state.panels = {
+      setHeight: wrap.style.height,
+      panels: [],
+      wrapper: document.createElement("div")
+    };
+    wrap.parentNode.insertBefore(info.wrapper, wrap);
+    var hasFocus = cm.hasFocus();
+    info.wrapper.appendChild(wrap);
+    if (hasFocus) cm.focus();
+
+    cm._setSize = cm.setSize;
+    if (height != null) cm.setSize = function (width, newHeight) {
+      if (!newHeight) newHeight = info.wrapper.offsetHeight;
+      info.setHeight = newHeight;
+      if (typeof newHeight != "number") {
+        var px = /^(\d+\.?\d*)px$/.exec(newHeight);
+        if (px) {
+          newHeight = Number(px[1]);
+        } else {
+          info.wrapper.style.height = newHeight;
+          newHeight = info.wrapper.offsetHeight;
+        }
+      }
+      var editorheight = newHeight - info.panels
+        .map(function (p) { return p.node.getBoundingClientRect().height; })
+        .reduce(function (a, b) { return a + b; }, 0);
+      cm._setSize(width, editorheight);
+      height = newHeight;
+    };
+  }
+
+  function removePanels(cm) {
+    var info = cm.state.panels;
+    cm.state.panels = null;
+
+    var wrap = cm.getWrapperElement();
+    info.wrapper.parentNode.replaceChild(wrap, info.wrapper);
+    wrap.style.height = info.setHeight;
+    cm.setSize = cm._setSize;
+    cm.setSize();
+  }
+
+  function isAtTop(cm, dom) {
+    for (var sibling = dom.nextSibling; sibling; sibling = sibling.nextSibling)
+      if (sibling == cm.getWrapperElement()) return true
+    return false
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/display/placeholder.js

@@ -0,0 +1,63 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  CodeMirror.defineOption("placeholder", "", function(cm, val, old) {
+    var prev = old && old != CodeMirror.Init;
+    if (val && !prev) {
+      cm.on("blur", onBlur);
+      cm.on("change", onChange);
+      cm.on("swapDoc", onChange);
+      onChange(cm);
+    } else if (!val && prev) {
+      cm.off("blur", onBlur);
+      cm.off("change", onChange);
+      cm.off("swapDoc", onChange);
+      clearPlaceholder(cm);
+      var wrapper = cm.getWrapperElement();
+      wrapper.className = wrapper.className.replace(" CodeMirror-empty", "");
+    }
+
+    if (val && !cm.hasFocus()) onBlur(cm);
+  });
+
+  function clearPlaceholder(cm) {
+    if (cm.state.placeholder) {
+      cm.state.placeholder.parentNode.removeChild(cm.state.placeholder);
+      cm.state.placeholder = null;
+    }
+  }
+  function setPlaceholder(cm) {
+    clearPlaceholder(cm);
+    var elt = cm.state.placeholder = document.createElement("pre");
+    elt.style.cssText = "height: 0; overflow: visible";
+    elt.style.direction = cm.getOption("direction");
+    elt.className = "CodeMirror-placeholder CodeMirror-line-like";
+    var placeHolder = cm.getOption("placeholder")
+    if (typeof placeHolder == "string") placeHolder = document.createTextNode(placeHolder)
+    elt.appendChild(placeHolder)
+    cm.display.lineSpace.insertBefore(elt, cm.display.lineSpace.firstChild);
+  }
+
+  function onBlur(cm) {
+    if (isEmpty(cm)) setPlaceholder(cm);
+  }
+  function onChange(cm) {
+    var wrapper = cm.getWrapperElement(), empty = isEmpty(cm);
+    wrapper.className = wrapper.className.replace(" CodeMirror-empty", "") + (empty ? " CodeMirror-empty" : "");
+
+    if (empty) setPlaceholder(cm);
+    else clearPlaceholder(cm);
+  }
+
+  function isEmpty(cm) {
+    return (cm.lineCount() === 1) && (cm.getLine(0) === "");
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/display/rulers.js

@@ -0,0 +1,51 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineOption("rulers", false, function(cm, val) {
+    if (cm.state.rulerDiv) {
+      cm.state.rulerDiv.parentElement.removeChild(cm.state.rulerDiv)
+      cm.state.rulerDiv = null
+      cm.off("refresh", drawRulers)
+    }
+    if (val && val.length) {
+      cm.state.rulerDiv = cm.display.lineSpace.parentElement.insertBefore(document.createElement("div"), cm.display.lineSpace)
+      cm.state.rulerDiv.className = "CodeMirror-rulers"
+      drawRulers(cm)
+      cm.on("refresh", drawRulers)
+    }
+  });
+
+  function drawRulers(cm) {
+    cm.state.rulerDiv.textContent = ""
+    var val = cm.getOption("rulers");
+    var cw = cm.defaultCharWidth();
+    var left = cm.charCoords(CodeMirror.Pos(cm.firstLine(), 0), "div").left;
+    cm.state.rulerDiv.style.minHeight = (cm.display.scroller.offsetHeight + 30) + "px";
+    for (var i = 0; i < val.length; i++) {
+      var elt = document.createElement("div");
+      elt.className = "CodeMirror-ruler";
+      var col, conf = val[i];
+      if (typeof conf == "number") {
+        col = conf;
+      } else {
+        col = conf.column;
+        if (conf.className) elt.className += " " + conf.className;
+        if (conf.color) elt.style.borderColor = conf.color;
+        if (conf.lineStyle) elt.style.borderLeftStyle = conf.lineStyle;
+        if (conf.width) elt.style.borderLeftWidth = conf.width;
+      }
+      elt.style.left = (left + col * cw) + "px";
+      cm.state.rulerDiv.appendChild(elt)
+    }
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/edit/closebrackets.js

@@ -0,0 +1,191 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  var defaults = {
+    pairs: "()[]{}''\"\"",
+    closeBefore: ")]}'\":;>",
+    triples: "",
+    explode: "[]{}"
+  };
+
+  var Pos = CodeMirror.Pos;
+
+  CodeMirror.defineOption("autoCloseBrackets", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      cm.removeKeyMap(keyMap);
+      cm.state.closeBrackets = null;
+    }
+    if (val) {
+      ensureBound(getOption(val, "pairs"))
+      cm.state.closeBrackets = val;
+      cm.addKeyMap(keyMap);
+    }
+  });
+
+  function getOption(conf, name) {
+    if (name == "pairs" && typeof conf == "string") return conf;
+    if (typeof conf == "object" && conf[name] != null) return conf[name];
+    return defaults[name];
+  }
+
+  var keyMap = {Backspace: handleBackspace, Enter: handleEnter};
+  function ensureBound(chars) {
+    for (var i = 0; i < chars.length; i++) {
+      var ch = chars.charAt(i), key = "'" + ch + "'"
+      if (!keyMap[key]) keyMap[key] = handler(ch)
+    }
+  }
+  ensureBound(defaults.pairs + "`")
+
+  function handler(ch) {
+    return function(cm) { return handleChar(cm, ch); };
+  }
+
+  function getConfig(cm) {
+    var deflt = cm.state.closeBrackets;
+    if (!deflt || deflt.override) return deflt;
+    var mode = cm.getModeAt(cm.getCursor());
+    return mode.closeBrackets || deflt;
+  }
+
+  function handleBackspace(cm) {
+    var conf = getConfig(cm);
+    if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;
+
+    var pairs = getOption(conf, "pairs");
+    var ranges = cm.listSelections();
+    for (var i = 0; i < ranges.length; i++) {
+      if (!ranges[i].empty()) return CodeMirror.Pass;
+      var around = charsAround(cm, ranges[i].head);
+      if (!around || pairs.indexOf(around) % 2 != 0) return CodeMirror.Pass;
+    }
+    for (var i = ranges.length - 1; i >= 0; i--) {
+      var cur = ranges[i].head;
+      cm.replaceRange("", Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1), "+delete");
+    }
+  }
+
+  function handleEnter(cm) {
+    var conf = getConfig(cm);
+    var explode = conf && getOption(conf, "explode");
+    if (!explode || cm.getOption("disableInput")) return CodeMirror.Pass;
+
+    var ranges = cm.listSelections();
+    for (var i = 0; i < ranges.length; i++) {
+      if (!ranges[i].empty()) return CodeMirror.Pass;
+      var around = charsAround(cm, ranges[i].head);
+      if (!around || explode.indexOf(around) % 2 != 0) return CodeMirror.Pass;
+    }
+    cm.operation(function() {
+      var linesep = cm.lineSeparator() || "\n";
+      cm.replaceSelection(linesep + linesep, null);
+      cm.execCommand("goCharLeft");
+      ranges = cm.listSelections();
+      for (var i = 0; i < ranges.length; i++) {
+        var line = ranges[i].head.line;
+        cm.indentLine(line, null, true);
+        cm.indentLine(line + 1, null, true);
+      }
+    });
+  }
+
+  function contractSelection(sel) {
+    var inverted = CodeMirror.cmpPos(sel.anchor, sel.head) > 0;
+    return {anchor: new Pos(sel.anchor.line, sel.anchor.ch + (inverted ? -1 : 1)),
+            head: new Pos(sel.head.line, sel.head.ch + (inverted ? 1 : -1))};
+  }
+
+  function handleChar(cm, ch) {
+    var conf = getConfig(cm);
+    if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;
+
+    var pairs = getOption(conf, "pairs");
+    var pos = pairs.indexOf(ch);
+    if (pos == -1) return CodeMirror.Pass;
+
+    var closeBefore = getOption(conf,"closeBefore");
+
+    var triples = getOption(conf, "triples");
+
+    var identical = pairs.charAt(pos + 1) == ch;
+    var ranges = cm.listSelections();
+    var opening = pos % 2 == 0;
+
+    var type;
+    for (var i = 0; i < ranges.length; i++) {
+      var range = ranges[i], cur = range.head, curType;
+      var next = cm.getRange(cur, Pos(cur.line, cur.ch + 1));
+      if (opening && !range.empty()) {
+        curType = "surround";
+      } else if ((identical || !opening) && next == ch) {
+        if (identical && stringStartsAfter(cm, cur))
+          curType = "both";
+        else if (triples.indexOf(ch) >= 0 && cm.getRange(cur, Pos(cur.line, cur.ch + 3)) == ch + ch + ch)
+          curType = "skipThree";
+        else
+          curType = "skip";
+      } else if (identical && cur.ch > 1 && triples.indexOf(ch) >= 0 &&
+                 cm.getRange(Pos(cur.line, cur.ch - 2), cur) == ch + ch) {
+        if (cur.ch > 2 && /\bstring/.test(cm.getTokenTypeAt(Pos(cur.line, cur.ch - 2)))) return CodeMirror.Pass;
+        curType = "addFour";
+      } else if (identical) {
+        var prev = cur.ch == 0 ? " " : cm.getRange(Pos(cur.line, cur.ch - 1), cur)
+        if (!CodeMirror.isWordChar(next) && prev != ch && !CodeMirror.isWordChar(prev)) curType = "both";
+        else return CodeMirror.Pass;
+      } else if (opening && (next.length === 0 || /\s/.test(next) || closeBefore.indexOf(next) > -1)) {
+        curType = "both";
+      } else {
+        return CodeMirror.Pass;
+      }
+      if (!type) type = curType;
+      else if (type != curType) return CodeMirror.Pass;
+    }
+
+    var left = pos % 2 ? pairs.charAt(pos - 1) : ch;
+    var right = pos % 2 ? ch : pairs.charAt(pos + 1);
+    cm.operation(function() {
+      if (type == "skip") {
+        cm.execCommand("goCharRight");
+      } else if (type == "skipThree") {
+        for (var i = 0; i < 3; i++)
+          cm.execCommand("goCharRight");
+      } else if (type == "surround") {
+        var sels = cm.getSelections();
+        for (var i = 0; i < sels.length; i++)
+          sels[i] = left + sels[i] + right;
+        cm.replaceSelections(sels, "around");
+        sels = cm.listSelections().slice();
+        for (var i = 0; i < sels.length; i++)
+          sels[i] = contractSelection(sels[i]);
+        cm.setSelections(sels);
+      } else if (type == "both") {
+        cm.replaceSelection(left + right, null);
+        cm.triggerElectric(left + right);
+        cm.execCommand("goCharLeft");
+      } else if (type == "addFour") {
+        cm.replaceSelection(left + left + left + left, "before");
+        cm.execCommand("goCharRight");
+      }
+    });
+  }
+
+  function charsAround(cm, pos) {
+    var str = cm.getRange(Pos(pos.line, pos.ch - 1),
+                          Pos(pos.line, pos.ch + 1));
+    return str.length == 2 ? str : null;
+  }
+
+  function stringStartsAfter(cm, pos) {
+    var token = cm.getTokenAt(Pos(pos.line, pos.ch + 1))
+    return /\bstring/.test(token.type) && token.start == pos.ch &&
+      (pos.ch == 0 || !/\bstring/.test(cm.getTokenTypeAt(pos)))
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/edit/closetag.js

@@ -0,0 +1,184 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+/**
+ * Tag-closer extension for CodeMirror.
+ *
+ * This extension adds an "autoCloseTags" option that can be set to
+ * either true to get the default behavior, or an object to further
+ * configure its behavior.
+ *
+ * These are supported options:
+ *
+ * `whenClosing` (default true)
+ *   Whether to autoclose when the '/' of a closing tag is typed.
+ * `whenOpening` (default true)
+ *   Whether to autoclose the tag when the final '>' of an opening
+ *   tag is typed.
+ * `dontCloseTags` (default is empty tags for HTML, none for XML)
+ *   An array of tag names that should not be autoclosed.
+ * `indentTags` (default is block tags for HTML, none for XML)
+ *   An array of tag names that should, when opened, cause a
+ *   blank line to be added inside the tag, and the blank line and
+ *   closing line to be indented.
+ * `emptyTags` (default is none)
+ *   An array of XML tag names that should be autoclosed with '/>'.
+ *
+ * See demos/closetag.html for a usage example.
+ */
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../fold/xml-fold"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../fold/xml-fold"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  CodeMirror.defineOption("autoCloseTags", false, function(cm, val, old) {
+    if (old != CodeMirror.Init && old)
+      cm.removeKeyMap("autoCloseTags");
+    if (!val) return;
+    var map = {name: "autoCloseTags"};
+    if (typeof val != "object" || val.whenClosing !== false)
+      map["'/'"] = function(cm) { return autoCloseSlash(cm); };
+    if (typeof val != "object" || val.whenOpening !== false)
+      map["'>'"] = function(cm) { return autoCloseGT(cm); };
+    cm.addKeyMap(map);
+  });
+
+  var htmlDontClose = ["area", "base", "br", "col", "command", "embed", "hr", "img", "input", "keygen", "link", "meta", "param",
+                       "source", "track", "wbr"];
+  var htmlIndent = ["applet", "blockquote", "body", "button", "div", "dl", "fieldset", "form", "frameset", "h1", "h2", "h3", "h4",
+                    "h5", "h6", "head", "html", "iframe", "layer", "legend", "object", "ol", "p", "select", "table", "ul"];
+
+  function autoCloseGT(cm) {
+    if (cm.getOption("disableInput")) return CodeMirror.Pass;
+    var ranges = cm.listSelections(), replacements = [];
+    var opt = cm.getOption("autoCloseTags");
+    for (var i = 0; i < ranges.length; i++) {
+      if (!ranges[i].empty()) return CodeMirror.Pass;
+      var pos = ranges[i].head, tok = cm.getTokenAt(pos);
+      var inner = CodeMirror.innerMode(cm.getMode(), tok.state), state = inner.state;
+      var tagInfo = inner.mode.xmlCurrentTag && inner.mode.xmlCurrentTag(state)
+      var tagName = tagInfo && tagInfo.name
+      if (!tagName) return CodeMirror.Pass
+
+      var html = inner.mode.configuration == "html";
+      var dontCloseTags = (typeof opt == "object" && opt.dontCloseTags) || (html && htmlDontClose);
+      var indentTags = (typeof opt == "object" && opt.indentTags) || (html && htmlIndent);
+
+      if (tok.end > pos.ch) tagName = tagName.slice(0, tagName.length - tok.end + pos.ch);
+      var lowerTagName = tagName.toLowerCase();
+      // Don't process the '>' at the end of an end-tag or self-closing tag
+      if (!tagName ||
+          tok.type == "string" && (tok.end != pos.ch || !/[\"\']/.test(tok.string.charAt(tok.string.length - 1)) || tok.string.length == 1) ||
+          tok.type == "tag" && tagInfo.close ||
+          tok.string.indexOf("/") == (pos.ch - tok.start - 1) || // match something like <someTagName />
+          dontCloseTags && indexOf(dontCloseTags, lowerTagName) > -1 ||
+          closingTagExists(cm, inner.mode.xmlCurrentContext && inner.mode.xmlCurrentContext(state) || [], tagName, pos, true))
+        return CodeMirror.Pass;
+
+      var emptyTags = typeof opt == "object" && opt.emptyTags;
+      if (emptyTags && indexOf(emptyTags, tagName) > -1) {
+        replacements[i] = { text: "/>", newPos: CodeMirror.Pos(pos.line, pos.ch + 2) };
+        continue;
+      }
+
+      var indent = indentTags && indexOf(indentTags, lowerTagName) > -1;
+      replacements[i] = {indent: indent,
+                         text: ">" + (indent ? "\n\n" : "") + "</" + tagName + ">",
+                         newPos: indent ? CodeMirror.Pos(pos.line + 1, 0) : CodeMirror.Pos(pos.line, pos.ch + 1)};
+    }
+
+    var dontIndentOnAutoClose = (typeof opt == "object" && opt.dontIndentOnAutoClose);
+    for (var i = ranges.length - 1; i >= 0; i--) {
+      var info = replacements[i];
+      cm.replaceRange(info.text, ranges[i].head, ranges[i].anchor, "+insert");
+      var sel = cm.listSelections().slice(0);
+      sel[i] = {head: info.newPos, anchor: info.newPos};
+      cm.setSelections(sel);
+      if (!dontIndentOnAutoClose && info.indent) {
+        cm.indentLine(info.newPos.line, null, true);
+        cm.indentLine(info.newPos.line + 1, null, true);
+      }
+    }
+  }
+
+  function autoCloseCurrent(cm, typingSlash) {
+    var ranges = cm.listSelections(), replacements = [];
+    var head = typingSlash ? "/" : "</";
+    var opt = cm.getOption("autoCloseTags");
+    var dontIndentOnAutoClose = (typeof opt == "object" && opt.dontIndentOnSlash);
+    for (var i = 0; i < ranges.length; i++) {
+      if (!ranges[i].empty()) return CodeMirror.Pass;
+      var pos = ranges[i].head, tok = cm.getTokenAt(pos);
+      var inner = CodeMirror.innerMode(cm.getMode(), tok.state), state = inner.state;
+      if (typingSlash && (tok.type == "string" || tok.string.charAt(0) != "<" ||
+                          tok.start != pos.ch - 1))
+        return CodeMirror.Pass;
+      // Kludge to get around the fact that we are not in XML mode
+      // when completing in JS/CSS snippet in htmlmixed mode. Does not
+      // work for other XML embedded languages (there is no general
+      // way to go from a mixed mode to its current XML state).
+      var replacement, mixed = inner.mode.name != "xml" && cm.getMode().name == "htmlmixed"
+      if (mixed && inner.mode.name == "javascript") {
+        replacement = head + "script";
+      } else if (mixed && inner.mode.name == "css") {
+        replacement = head + "style";
+      } else {
+        var context = inner.mode.xmlCurrentContext && inner.mode.xmlCurrentContext(state)
+        if (!context || (context.length && closingTagExists(cm, context, context[context.length - 1], pos)))
+          return CodeMirror.Pass;
+        replacement = head + context[context.length - 1]
+      }
+      if (cm.getLine(pos.line).charAt(tok.end) != ">") replacement += ">";
+      replacements[i] = replacement;
+    }
+    cm.replaceSelections(replacements);
+    ranges = cm.listSelections();
+    if (!dontIndentOnAutoClose) {
+        for (var i = 0; i < ranges.length; i++)
+            if (i == ranges.length - 1 || ranges[i].head.line < ranges[i + 1].head.line)
+                cm.indentLine(ranges[i].head.line);
+    }
+  }
+
+  function autoCloseSlash(cm) {
+    if (cm.getOption("disableInput")) return CodeMirror.Pass;
+    return autoCloseCurrent(cm, true);
+  }
+
+  CodeMirror.commands.closeTag = function(cm) { return autoCloseCurrent(cm); };
+
+  function indexOf(collection, elt) {
+    if (collection.indexOf) return collection.indexOf(elt);
+    for (var i = 0, e = collection.length; i < e; ++i)
+      if (collection[i] == elt) return i;
+    return -1;
+  }
+
+  // If xml-fold is loaded, we use its functionality to try and verify
+  // whether a given tag is actually unclosed.
+  function closingTagExists(cm, context, tagName, pos, newTag) {
+    if (!CodeMirror.scanForClosingTag) return false;
+    var end = Math.min(cm.lastLine() + 1, pos.line + 500);
+    var nextClose = CodeMirror.scanForClosingTag(cm, pos, null, end);
+    if (!nextClose || nextClose.tag != tagName) return false;
+    // If the immediate wrapping context contains onCx instances of
+    // the same tag, a closing tag only exists if there are at least
+    // that many closing tags of that type following.
+    var onCx = newTag ? 1 : 0
+    for (var i = context.length - 1; i >= 0; i--) {
+      if (context[i] == tagName) ++onCx
+      else break
+    }
+    pos = nextClose.to;
+    for (var i = 1; i < onCx; i++) {
+      var next = CodeMirror.scanForClosingTag(cm, pos, null, end);
+      if (!next || next.tag != tagName) return false;
+      pos = next.to;
+    }
+    return true;
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/edit/continuelist.js

@@ -0,0 +1,101 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var listRE = /^(\s*)(>[> ]*|[*+-] \[[x ]\]\s|[*+-]\s|(\d+)([.)]))(\s*)/,
+      emptyListRE = /^(\s*)(>[> ]*|[*+-] \[[x ]\]|[*+-]|(\d+)[.)])(\s*)$/,
+      unorderedListRE = /[*+-]\s/;
+
+  CodeMirror.commands.newlineAndIndentContinueMarkdownList = function(cm) {
+    if (cm.getOption("disableInput")) return CodeMirror.Pass;
+    var ranges = cm.listSelections(), replacements = [];
+    for (var i = 0; i < ranges.length; i++) {
+      var pos = ranges[i].head;
+
+      // If we're not in Markdown mode, fall back to normal newlineAndIndent
+      var eolState = cm.getStateAfter(pos.line);
+      var inner = CodeMirror.innerMode(cm.getMode(), eolState);
+      if (inner.mode.name !== "markdown") {
+        cm.execCommand("newlineAndIndent");
+        return;
+      } else {
+        eolState = inner.state;
+      }
+
+      var inList = eolState.list !== false;
+      var inQuote = eolState.quote !== 0;
+
+      var line = cm.getLine(pos.line), match = listRE.exec(line);
+      var cursorBeforeBullet = /^\s*$/.test(line.slice(0, pos.ch));
+      if (!ranges[i].empty() || (!inList && !inQuote) || !match || cursorBeforeBullet) {
+        cm.execCommand("newlineAndIndent");
+        return;
+      }
+      if (emptyListRE.test(line)) {
+        var endOfQuote = inQuote && />\s*$/.test(line)
+        var endOfList = !/>\s*$/.test(line)
+        if (endOfQuote || endOfList) cm.replaceRange("", {
+          line: pos.line, ch: 0
+        }, {
+          line: pos.line, ch: pos.ch + 1
+        });
+        replacements[i] = "\n";
+      } else {
+        var indent = match[1], after = match[5];
+        var numbered = !(unorderedListRE.test(match[2]) || match[2].indexOf(">") >= 0);
+        var bullet = numbered ? (parseInt(match[3], 10) + 1) + match[4] : match[2].replace("x", " ");
+        replacements[i] = "\n" + indent + bullet + after;
+
+        if (numbered) incrementRemainingMarkdownListNumbers(cm, pos);
+      }
+    }
+
+    cm.replaceSelections(replacements);
+  };
+
+  // Auto-updating Markdown list numbers when a new item is added to the
+  // middle of a list
+  function incrementRemainingMarkdownListNumbers(cm, pos) {
+    var startLine = pos.line, lookAhead = 0, skipCount = 0;
+    var startItem = listRE.exec(cm.getLine(startLine)), startIndent = startItem[1];
+
+    do {
+      lookAhead += 1;
+      var nextLineNumber = startLine + lookAhead;
+      var nextLine = cm.getLine(nextLineNumber), nextItem = listRE.exec(nextLine);
+
+      if (nextItem) {
+        var nextIndent = nextItem[1];
+        var newNumber = (parseInt(startItem[3], 10) + lookAhead - skipCount);
+        var nextNumber = (parseInt(nextItem[3], 10)), itemNumber = nextNumber;
+
+        if (startIndent === nextIndent && !isNaN(nextNumber)) {
+          if (newNumber === nextNumber) itemNumber = nextNumber + 1;
+          if (newNumber > nextNumber) itemNumber = newNumber + 1;
+          cm.replaceRange(
+            nextLine.replace(listRE, nextIndent + itemNumber + nextItem[4] + nextItem[5]),
+          {
+            line: nextLineNumber, ch: 0
+          }, {
+            line: nextLineNumber, ch: nextLine.length
+          });
+        } else {
+          if (startIndent.length > nextIndent.length) return;
+          // This doesn't run if the next line immediatley indents, as it is
+          // not clear of the users intention (new indented item or same level)
+          if ((startIndent.length < nextIndent.length) && (lookAhead === 1)) return;
+          skipCount += 1;
+        }
+      }
+    } while (nextItem);
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/edit/matchbrackets.js

@@ -0,0 +1,158 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  var ie_lt8 = /MSIE \d/.test(navigator.userAgent) &&
+    (document.documentMode == null || document.documentMode < 8);
+
+  var Pos = CodeMirror.Pos;
+
+  var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<", "<": ">>", ">": "<<"};
+
+  function bracketRegex(config) {
+    return config && config.bracketRegex || /[(){}[\]]/
+  }
+
+  function findMatchingBracket(cm, where, config) {
+    var line = cm.getLineHandle(where.line), pos = where.ch - 1;
+    var afterCursor = config && config.afterCursor
+    if (afterCursor == null)
+      afterCursor = /(^| )cm-fat-cursor($| )/.test(cm.getWrapperElement().className)
+    var re = bracketRegex(config)
+
+    // A cursor is defined as between two characters, but in in vim command mode
+    // (i.e. not insert mode), the cursor is visually represented as a
+    // highlighted box on top of the 2nd character. Otherwise, we allow matches
+    // from before or after the cursor.
+    var match = (!afterCursor && pos >= 0 && re.test(line.text.charAt(pos)) && matching[line.text.charAt(pos)]) ||
+        re.test(line.text.charAt(pos + 1)) && matching[line.text.charAt(++pos)];
+    if (!match) return null;
+    var dir = match.charAt(1) == ">" ? 1 : -1;
+    if (config && config.strict && (dir > 0) != (pos == where.ch)) return null;
+    var style = cm.getTokenTypeAt(Pos(where.line, pos + 1));
+
+    var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config);
+    if (found == null) return null;
+    return {from: Pos(where.line, pos), to: found && found.pos,
+            match: found && found.ch == match.charAt(0), forward: dir > 0};
+  }
+
+  // bracketRegex is used to specify which type of bracket to scan
+  // should be a regexp, e.g. /[[\]]/
+  //
+  // Note: If "where" is on an open bracket, then this bracket is ignored.
+  //
+  // Returns false when no bracket was found, null when it reached
+  // maxScanLines and gave up
+  function scanForBracket(cm, where, dir, style, config) {
+    var maxScanLen = (config && config.maxScanLineLength) || 10000;
+    var maxScanLines = (config && config.maxScanLines) || 1000;
+
+    var stack = [];
+    var re = bracketRegex(config)
+    var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)
+                          : Math.max(cm.firstLine() - 1, where.line - maxScanLines);
+    for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {
+      var line = cm.getLine(lineNo);
+      if (!line) continue;
+      var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1;
+      if (line.length > maxScanLen) continue;
+      if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0);
+      for (; pos != end; pos += dir) {
+        var ch = line.charAt(pos);
+        if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {
+          var match = matching[ch];
+          if (match && (match.charAt(1) == ">") == (dir > 0)) stack.push(ch);
+          else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};
+          else stack.pop();
+        }
+      }
+    }
+    return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null;
+  }
+
+  function matchBrackets(cm, autoclear, config) {
+    // Disable brace matching in long lines, since it'll cause hugely slow updates
+    var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000;
+    var marks = [], ranges = cm.listSelections();
+    for (var i = 0; i < ranges.length; i++) {
+      var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, config);
+      if (match && cm.getLine(match.from.line).length <= maxHighlightLen) {
+        var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket";
+        marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style}));
+        if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen)
+          marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style}));
+      }
+    }
+
+    if (marks.length) {
+      // Kludge to work around the IE bug from issue #1193, where text
+      // input stops going to the textare whever this fires.
+      if (ie_lt8 && cm.state.focused) cm.focus();
+
+      var clear = function() {
+        cm.operation(function() {
+          for (var i = 0; i < marks.length; i++) marks[i].clear();
+        });
+      };
+      if (autoclear) setTimeout(clear, 800);
+      else return clear;
+    }
+  }
+
+  function doMatchBrackets(cm) {
+    cm.operation(function() {
+      if (cm.state.matchBrackets.currentlyHighlighted) {
+        cm.state.matchBrackets.currentlyHighlighted();
+        cm.state.matchBrackets.currentlyHighlighted = null;
+      }
+      cm.state.matchBrackets.currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets);
+    });
+  }
+
+  CodeMirror.defineOption("matchBrackets", false, function(cm, val, old) {
+    function clear(cm) {
+      if (cm.state.matchBrackets && cm.state.matchBrackets.currentlyHighlighted) {
+        cm.state.matchBrackets.currentlyHighlighted();
+        cm.state.matchBrackets.currentlyHighlighted = null;
+      }
+    }
+
+    if (old && old != CodeMirror.Init) {
+      cm.off("cursorActivity", doMatchBrackets);
+      cm.off("focus", doMatchBrackets)
+      cm.off("blur", clear)
+      clear(cm);
+    }
+    if (val) {
+      cm.state.matchBrackets = typeof val == "object" ? val : {};
+      cm.on("cursorActivity", doMatchBrackets);
+      cm.on("focus", doMatchBrackets)
+      cm.on("blur", clear)
+    }
+  });
+
+  CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);});
+  CodeMirror.defineExtension("findMatchingBracket", function(pos, config, oldConfig){
+    // Backwards-compatibility kludge
+    if (oldConfig || typeof config == "boolean") {
+      if (!oldConfig) {
+        config = config ? {strict: true} : null
+      } else {
+        oldConfig.strict = config
+        config = oldConfig
+      }
+    }
+    return findMatchingBracket(this, pos, config)
+  });
+  CodeMirror.defineExtension("scanForBracket", function(pos, dir, style, config){
+    return scanForBracket(this, pos, dir, style, config);
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/edit/matchtags.js

@@ -0,0 +1,66 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../fold/xml-fold"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../fold/xml-fold"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineOption("matchTags", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      cm.off("cursorActivity", doMatchTags);
+      cm.off("viewportChange", maybeUpdateMatch);
+      clear(cm);
+    }
+    if (val) {
+      cm.state.matchBothTags = typeof val == "object" && val.bothTags;
+      cm.on("cursorActivity", doMatchTags);
+      cm.on("viewportChange", maybeUpdateMatch);
+      doMatchTags(cm);
+    }
+  });
+
+  function clear(cm) {
+    if (cm.state.tagHit) cm.state.tagHit.clear();
+    if (cm.state.tagOther) cm.state.tagOther.clear();
+    cm.state.tagHit = cm.state.tagOther = null;
+  }
+
+  function doMatchTags(cm) {
+    cm.state.failedTagMatch = false;
+    cm.operation(function() {
+      clear(cm);
+      if (cm.somethingSelected()) return;
+      var cur = cm.getCursor(), range = cm.getViewport();
+      range.from = Math.min(range.from, cur.line); range.to = Math.max(cur.line + 1, range.to);
+      var match = CodeMirror.findMatchingTag(cm, cur, range);
+      if (!match) return;
+      if (cm.state.matchBothTags) {
+        var hit = match.at == "open" ? match.open : match.close;
+        if (hit) cm.state.tagHit = cm.markText(hit.from, hit.to, {className: "CodeMirror-matchingtag"});
+      }
+      var other = match.at == "close" ? match.open : match.close;
+      if (other)
+        cm.state.tagOther = cm.markText(other.from, other.to, {className: "CodeMirror-matchingtag"});
+      else
+        cm.state.failedTagMatch = true;
+    });
+  }
+
+  function maybeUpdateMatch(cm) {
+    if (cm.state.failedTagMatch) doMatchTags(cm);
+  }
+
+  CodeMirror.commands.toMatchingTag = function(cm) {
+    var found = CodeMirror.findMatchingTag(cm, cm.getCursor());
+    if (found) {
+      var other = found.at == "close" ? found.open : found.close;
+      if (other) cm.extendSelection(other.to, other.from);
+    }
+  };
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/edit/trailingspace.js

@@ -0,0 +1,27 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  CodeMirror.defineOption("showTrailingSpace", false, function(cm, val, prev) {
+    if (prev == CodeMirror.Init) prev = false;
+    if (prev && !val)
+      cm.removeOverlay("trailingspace");
+    else if (!prev && val)
+      cm.addOverlay({
+        token: function(stream) {
+          for (var l = stream.string.length, i = l; i && /\s/.test(stream.string.charAt(i - 1)); --i) {}
+          if (i > stream.pos) { stream.pos = i; return null; }
+          stream.pos = l;
+          return "trailingspace";
+        },
+        name: "trailingspace"
+      });
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/fold/brace-fold.js

@@ -0,0 +1,105 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.registerHelper("fold", "brace", function(cm, start) {
+  var line = start.line, lineText = cm.getLine(line);
+  var tokenType;
+
+  function findOpening(openCh) {
+    for (var at = start.ch, pass = 0;;) {
+      var found = at <= 0 ? -1 : lineText.lastIndexOf(openCh, at - 1);
+      if (found == -1) {
+        if (pass == 1) break;
+        pass = 1;
+        at = lineText.length;
+        continue;
+      }
+      if (pass == 1 && found < start.ch) break;
+      tokenType = cm.getTokenTypeAt(CodeMirror.Pos(line, found + 1));
+      if (!/^(comment|string)/.test(tokenType)) return found + 1;
+      at = found - 1;
+    }
+  }
+
+  var startToken = "{", endToken = "}", startCh = findOpening("{");
+  if (startCh == null) {
+    startToken = "[", endToken = "]";
+    startCh = findOpening("[");
+  }
+
+  if (startCh == null) return;
+  var count = 1, lastLine = cm.lastLine(), end, endCh;
+  outer: for (var i = line; i <= lastLine; ++i) {
+    var text = cm.getLine(i), pos = i == line ? startCh : 0;
+    for (;;) {
+      var nextOpen = text.indexOf(startToken, pos), nextClose = text.indexOf(endToken, pos);
+      if (nextOpen < 0) nextOpen = text.length;
+      if (nextClose < 0) nextClose = text.length;
+      pos = Math.min(nextOpen, nextClose);
+      if (pos == text.length) break;
+      if (cm.getTokenTypeAt(CodeMirror.Pos(i, pos + 1)) == tokenType) {
+        if (pos == nextOpen) ++count;
+        else if (!--count) { end = i; endCh = pos; break outer; }
+      }
+      ++pos;
+    }
+  }
+  if (end == null || line == end) return;
+  return {from: CodeMirror.Pos(line, startCh),
+          to: CodeMirror.Pos(end, endCh)};
+});
+
+CodeMirror.registerHelper("fold", "import", function(cm, start) {
+  function hasImport(line) {
+    if (line < cm.firstLine() || line > cm.lastLine()) return null;
+    var start = cm.getTokenAt(CodeMirror.Pos(line, 1));
+    if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));
+    if (start.type != "keyword" || start.string != "import") return null;
+    // Now find closing semicolon, return its position
+    for (var i = line, e = Math.min(cm.lastLine(), line + 10); i <= e; ++i) {
+      var text = cm.getLine(i), semi = text.indexOf(";");
+      if (semi != -1) return {startCh: start.end, end: CodeMirror.Pos(i, semi)};
+    }
+  }
+
+  var startLine = start.line, has = hasImport(startLine), prev;
+  if (!has || hasImport(startLine - 1) || ((prev = hasImport(startLine - 2)) && prev.end.line == startLine - 1))
+    return null;
+  for (var end = has.end;;) {
+    var next = hasImport(end.line + 1);
+    if (next == null) break;
+    end = next.end;
+  }
+  return {from: cm.clipPos(CodeMirror.Pos(startLine, has.startCh + 1)), to: end};
+});
+
+CodeMirror.registerHelper("fold", "include", function(cm, start) {
+  function hasInclude(line) {
+    if (line < cm.firstLine() || line > cm.lastLine()) return null;
+    var start = cm.getTokenAt(CodeMirror.Pos(line, 1));
+    if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));
+    if (start.type == "meta" && start.string.slice(0, 8) == "#include") return start.start + 8;
+  }
+
+  var startLine = start.line, has = hasInclude(startLine);
+  if (has == null || hasInclude(startLine - 1) != null) return null;
+  for (var end = startLine;;) {
+    var next = hasInclude(end + 1);
+    if (next == null) break;
+    ++end;
+  }
+  return {from: CodeMirror.Pos(startLine, has + 1),
+          to: cm.clipPos(CodeMirror.Pos(end))};
+});
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/fold/comment-fold.js

@@ -0,0 +1,59 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.registerGlobalHelper("fold", "comment", function(mode) {
+  return mode.blockCommentStart && mode.blockCommentEnd;
+}, function(cm, start) {
+  var mode = cm.getModeAt(start), startToken = mode.blockCommentStart, endToken = mode.blockCommentEnd;
+  if (!startToken || !endToken) return;
+  var line = start.line, lineText = cm.getLine(line);
+
+  var startCh;
+  for (var at = start.ch, pass = 0;;) {
+    var found = at <= 0 ? -1 : lineText.lastIndexOf(startToken, at - 1);
+    if (found == -1) {
+      if (pass == 1) return;
+      pass = 1;
+      at = lineText.length;
+      continue;
+    }
+    if (pass == 1 && found < start.ch) return;
+    if (/comment/.test(cm.getTokenTypeAt(CodeMirror.Pos(line, found + 1))) &&
+        (found == 0 || lineText.slice(found - endToken.length, found) == endToken ||
+         !/comment/.test(cm.getTokenTypeAt(CodeMirror.Pos(line, found))))) {
+      startCh = found + startToken.length;
+      break;
+    }
+    at = found - 1;
+  }
+
+  var depth = 1, lastLine = cm.lastLine(), end, endCh;
+  outer: for (var i = line; i <= lastLine; ++i) {
+    var text = cm.getLine(i), pos = i == line ? startCh : 0;
+    for (;;) {
+      var nextOpen = text.indexOf(startToken, pos), nextClose = text.indexOf(endToken, pos);
+      if (nextOpen < 0) nextOpen = text.length;
+      if (nextClose < 0) nextClose = text.length;
+      pos = Math.min(nextOpen, nextClose);
+      if (pos == text.length) break;
+      if (pos == nextOpen) ++depth;
+      else if (!--depth) { end = i; endCh = pos; break outer; }
+      ++pos;
+    }
+  }
+  if (end == null || line == end && endCh == startCh) return;
+  return {from: CodeMirror.Pos(line, startCh),
+          to: CodeMirror.Pos(end, endCh)};
+});
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/fold/foldcode.js

@@ -0,0 +1,157 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function doFold(cm, pos, options, force) {
+    if (options && options.call) {
+      var finder = options;
+      options = null;
+    } else {
+      var finder = getOption(cm, options, "rangeFinder");
+    }
+    if (typeof pos == "number") pos = CodeMirror.Pos(pos, 0);
+    var minSize = getOption(cm, options, "minFoldSize");
+
+    function getRange(allowFolded) {
+      var range = finder(cm, pos);
+      if (!range || range.to.line - range.from.line < minSize) return null;
+      var marks = cm.findMarksAt(range.from);
+      for (var i = 0; i < marks.length; ++i) {
+        if (marks[i].__isFold && force !== "fold") {
+          if (!allowFolded) return null;
+          range.cleared = true;
+          marks[i].clear();
+        }
+      }
+      return range;
+    }
+
+    var range = getRange(true);
+    if (getOption(cm, options, "scanUp")) while (!range && pos.line > cm.firstLine()) {
+      pos = CodeMirror.Pos(pos.line - 1, 0);
+      range = getRange(false);
+    }
+    if (!range || range.cleared || force === "unfold") return;
+
+    var myWidget = makeWidget(cm, options, range);
+    CodeMirror.on(myWidget, "mousedown", function(e) {
+      myRange.clear();
+      CodeMirror.e_preventDefault(e);
+    });
+    var myRange = cm.markText(range.from, range.to, {
+      replacedWith: myWidget,
+      clearOnEnter: getOption(cm, options, "clearOnEnter"),
+      __isFold: true
+    });
+    myRange.on("clear", function(from, to) {
+      CodeMirror.signal(cm, "unfold", cm, from, to);
+    });
+    CodeMirror.signal(cm, "fold", cm, range.from, range.to);
+  }
+
+  function makeWidget(cm, options, range) {
+    var widget = getOption(cm, options, "widget");
+
+    if (typeof widget == "function") {
+      widget = widget(range.from, range.to);
+    }
+
+    if (typeof widget == "string") {
+      var text = document.createTextNode(widget);
+      widget = document.createElement("span");
+      widget.appendChild(text);
+      widget.className = "CodeMirror-foldmarker";
+    } else if (widget) {
+      widget = widget.cloneNode(true)
+    }
+    return widget;
+  }
+
+  // Clumsy backwards-compatible interface
+  CodeMirror.newFoldFunction = function(rangeFinder, widget) {
+    return function(cm, pos) { doFold(cm, pos, {rangeFinder: rangeFinder, widget: widget}); };
+  };
+
+  // New-style interface
+  CodeMirror.defineExtension("foldCode", function(pos, options, force) {
+    doFold(this, pos, options, force);
+  });
+
+  CodeMirror.defineExtension("isFolded", function(pos) {
+    var marks = this.findMarksAt(pos);
+    for (var i = 0; i < marks.length; ++i)
+      if (marks[i].__isFold) return true;
+  });
+
+  CodeMirror.commands.toggleFold = function(cm) {
+    cm.foldCode(cm.getCursor());
+  };
+  CodeMirror.commands.fold = function(cm) {
+    cm.foldCode(cm.getCursor(), null, "fold");
+  };
+  CodeMirror.commands.unfold = function(cm) {
+    cm.foldCode(cm.getCursor(), null, "unfold");
+  };
+  CodeMirror.commands.foldAll = function(cm) {
+    cm.operation(function() {
+      for (var i = cm.firstLine(), e = cm.lastLine(); i <= e; i++)
+        cm.foldCode(CodeMirror.Pos(i, 0), null, "fold");
+    });
+  };
+  CodeMirror.commands.unfoldAll = function(cm) {
+    cm.operation(function() {
+      for (var i = cm.firstLine(), e = cm.lastLine(); i <= e; i++)
+        cm.foldCode(CodeMirror.Pos(i, 0), null, "unfold");
+    });
+  };
+
+  CodeMirror.registerHelper("fold", "combine", function() {
+    var funcs = Array.prototype.slice.call(arguments, 0);
+    return function(cm, start) {
+      for (var i = 0; i < funcs.length; ++i) {
+        var found = funcs[i](cm, start);
+        if (found) return found;
+      }
+    };
+  });
+
+  CodeMirror.registerHelper("fold", "auto", function(cm, start) {
+    var helpers = cm.getHelpers(start, "fold");
+    for (var i = 0; i < helpers.length; i++) {
+      var cur = helpers[i](cm, start);
+      if (cur) return cur;
+    }
+  });
+
+  var defaultOptions = {
+    rangeFinder: CodeMirror.fold.auto,
+    widget: "\u2194",
+    minFoldSize: 0,
+    scanUp: false,
+    clearOnEnter: true
+  };
+
+  CodeMirror.defineOption("foldOptions", null);
+
+  function getOption(cm, options, name) {
+    if (options && options[name] !== undefined)
+      return options[name];
+    var editorOptions = cm.options.foldOptions;
+    if (editorOptions && editorOptions[name] !== undefined)
+      return editorOptions[name];
+    return defaultOptions[name];
+  }
+
+  CodeMirror.defineExtension("foldOption", function(options, name) {
+    return getOption(this, options, name);
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/fold/foldgutter.css

@@ -0,0 +1,20 @@
+.CodeMirror-foldmarker {
+  color: blue;
+  text-shadow: #b9f 1px 1px 2px, #b9f -1px -1px 2px, #b9f 1px -1px 2px, #b9f -1px 1px 2px;
+  font-family: arial;
+  line-height: .3;
+  cursor: pointer;
+}
+.CodeMirror-foldgutter {
+  width: .7em;
+}
+.CodeMirror-foldgutter-open,
+.CodeMirror-foldgutter-folded {
+  cursor: pointer;
+}
+.CodeMirror-foldgutter-open:after {
+  content: "\25BE";
+}
+.CodeMirror-foldgutter-folded:after {
+  content: "\25B8";
+}

venv/Lib/site-packages/notebook/static/components/codemirror/addon/fold/foldgutter.js

@@ -0,0 +1,163 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("./foldcode"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "./foldcode"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineOption("foldGutter", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      cm.clearGutter(cm.state.foldGutter.options.gutter);
+      cm.state.foldGutter = null;
+      cm.off("gutterClick", onGutterClick);
+      cm.off("changes", onChange);
+      cm.off("viewportChange", onViewportChange);
+      cm.off("fold", onFold);
+      cm.off("unfold", onFold);
+      cm.off("swapDoc", onChange);
+    }
+    if (val) {
+      cm.state.foldGutter = new State(parseOptions(val));
+      updateInViewport(cm);
+      cm.on("gutterClick", onGutterClick);
+      cm.on("changes", onChange);
+      cm.on("viewportChange", onViewportChange);
+      cm.on("fold", onFold);
+      cm.on("unfold", onFold);
+      cm.on("swapDoc", onChange);
+    }
+  });
+
+  var Pos = CodeMirror.Pos;
+
+  function State(options) {
+    this.options = options;
+    this.from = this.to = 0;
+  }
+
+  function parseOptions(opts) {
+    if (opts === true) opts = {};
+    if (opts.gutter == null) opts.gutter = "CodeMirror-foldgutter";
+    if (opts.indicatorOpen == null) opts.indicatorOpen = "CodeMirror-foldgutter-open";
+    if (opts.indicatorFolded == null) opts.indicatorFolded = "CodeMirror-foldgutter-folded";
+    return opts;
+  }
+
+  function isFolded(cm, line) {
+    var marks = cm.findMarks(Pos(line, 0), Pos(line + 1, 0));
+    for (var i = 0; i < marks.length; ++i) {
+      if (marks[i].__isFold) {
+        var fromPos = marks[i].find(-1);
+        if (fromPos && fromPos.line === line)
+          return marks[i];
+      }
+    }
+  }
+
+  function marker(spec) {
+    if (typeof spec == "string") {
+      var elt = document.createElement("div");
+      elt.className = spec + " CodeMirror-guttermarker-subtle";
+      return elt;
+    } else {
+      return spec.cloneNode(true);
+    }
+  }
+
+  function updateFoldInfo(cm, from, to) {
+    var opts = cm.state.foldGutter.options, cur = from - 1;
+    var minSize = cm.foldOption(opts, "minFoldSize");
+    var func = cm.foldOption(opts, "rangeFinder");
+    // we can reuse the built-in indicator element if its className matches the new state
+    var clsFolded = typeof opts.indicatorFolded == "string" && classTest(opts.indicatorFolded);
+    var clsOpen = typeof opts.indicatorOpen == "string" && classTest(opts.indicatorOpen);
+    cm.eachLine(from, to, function(line) {
+      ++cur;
+      var mark = null;
+      var old = line.gutterMarkers;
+      if (old) old = old[opts.gutter];
+      if (isFolded(cm, cur)) {
+        if (clsFolded && old && clsFolded.test(old.className)) return;
+        mark = marker(opts.indicatorFolded);
+      } else {
+        var pos = Pos(cur, 0);
+        var range = func && func(cm, pos);
+        if (range && range.to.line - range.from.line >= minSize) {
+          if (clsOpen && old && clsOpen.test(old.className)) return;
+          mark = marker(opts.indicatorOpen);
+        }
+      }
+      if (!mark && !old) return;
+      cm.setGutterMarker(line, opts.gutter, mark);
+    });
+  }
+
+  // copied from CodeMirror/src/util/dom.js
+  function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
+
+  function updateInViewport(cm) {
+    var vp = cm.getViewport(), state = cm.state.foldGutter;
+    if (!state) return;
+    cm.operation(function() {
+      updateFoldInfo(cm, vp.from, vp.to);
+    });
+    state.from = vp.from; state.to = vp.to;
+  }
+
+  function onGutterClick(cm, line, gutter) {
+    var state = cm.state.foldGutter;
+    if (!state) return;
+    var opts = state.options;
+    if (gutter != opts.gutter) return;
+    var folded = isFolded(cm, line);
+    if (folded) folded.clear();
+    else cm.foldCode(Pos(line, 0), opts);
+  }
+
+  function onChange(cm) {
+    var state = cm.state.foldGutter;
+    if (!state) return;
+    var opts = state.options;
+    state.from = state.to = 0;
+    clearTimeout(state.changeUpdate);
+    state.changeUpdate = setTimeout(function() { updateInViewport(cm); }, opts.foldOnChangeTimeSpan || 600);
+  }
+
+  function onViewportChange(cm) {
+    var state = cm.state.foldGutter;
+    if (!state) return;
+    var opts = state.options;
+    clearTimeout(state.changeUpdate);
+    state.changeUpdate = setTimeout(function() {
+      var vp = cm.getViewport();
+      if (state.from == state.to || vp.from - state.to > 20 || state.from - vp.to > 20) {
+        updateInViewport(cm);
+      } else {
+        cm.operation(function() {
+          if (vp.from < state.from) {
+            updateFoldInfo(cm, vp.from, state.from);
+            state.from = vp.from;
+          }
+          if (vp.to > state.to) {
+            updateFoldInfo(cm, state.to, vp.to);
+            state.to = vp.to;
+          }
+        });
+      }
+    }, opts.updateViewportTimeSpan || 400);
+  }
+
+  function onFold(cm, from) {
+    var state = cm.state.foldGutter;
+    if (!state) return;
+    var line = from.line;
+    if (line >= state.from && line < state.to)
+      updateFoldInfo(cm, line, line + 1);
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/fold/indent-fold.js

@@ -0,0 +1,48 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+function lineIndent(cm, lineNo) {
+  var text = cm.getLine(lineNo)
+  var spaceTo = text.search(/\S/)
+  if (spaceTo == -1 || /\bcomment\b/.test(cm.getTokenTypeAt(CodeMirror.Pos(lineNo, spaceTo + 1))))
+    return -1
+  return CodeMirror.countColumn(text, null, cm.getOption("tabSize"))
+}
+
+CodeMirror.registerHelper("fold", "indent", function(cm, start) {
+  var myIndent = lineIndent(cm, start.line)
+  if (myIndent < 0) return
+  var lastLineInFold = null
+
+  // Go through lines until we find a line that definitely doesn't belong in
+  // the block we're folding, or to the end.
+  for (var i = start.line + 1, end = cm.lastLine(); i <= end; ++i) {
+    var indent = lineIndent(cm, i)
+    if (indent == -1) {
+    } else if (indent > myIndent) {
+      // Lines with a greater indent are considered part of the block.
+      lastLineInFold = i;
+    } else {
+      // If this line has non-space, non-comment content, and is
+      // indented less or equal to the start line, it is the start of
+      // another block.
+      break;
+    }
+  }
+  if (lastLineInFold) return {
+    from: CodeMirror.Pos(start.line, cm.getLine(start.line).length),
+    to: CodeMirror.Pos(lastLineInFold, cm.getLine(lastLineInFold).length)
+  };
+});
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/fold/markdown-fold.js

@@ -0,0 +1,49 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.registerHelper("fold", "markdown", function(cm, start) {
+  var maxDepth = 100;
+
+  function isHeader(lineNo) {
+    var tokentype = cm.getTokenTypeAt(CodeMirror.Pos(lineNo, 0));
+    return tokentype && /\bheader\b/.test(tokentype);
+  }
+
+  function headerLevel(lineNo, line, nextLine) {
+    var match = line && line.match(/^#+/);
+    if (match && isHeader(lineNo)) return match[0].length;
+    match = nextLine && nextLine.match(/^[=\-]+\s*$/);
+    if (match && isHeader(lineNo + 1)) return nextLine[0] == "=" ? 1 : 2;
+    return maxDepth;
+  }
+
+  var firstLine = cm.getLine(start.line), nextLine = cm.getLine(start.line + 1);
+  var level = headerLevel(start.line, firstLine, nextLine);
+  if (level === maxDepth) return undefined;
+
+  var lastLineNo = cm.lastLine();
+  var end = start.line, nextNextLine = cm.getLine(end + 2);
+  while (end < lastLineNo) {
+    if (headerLevel(end + 1, nextLine, nextNextLine) <= level) break;
+    ++end;
+    nextLine = nextNextLine;
+    nextNextLine = cm.getLine(end + 2);
+  }
+
+  return {
+    from: CodeMirror.Pos(start.line, firstLine.length),
+    to: CodeMirror.Pos(end, cm.getLine(end).length)
+  };
+});
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/fold/xml-fold.js

@@ -0,0 +1,184 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var Pos = CodeMirror.Pos;
+  function cmp(a, b) { return a.line - b.line || a.ch - b.ch; }
+
+  var nameStartChar = "A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD";
+  var nameChar = nameStartChar + "\-\:\.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040";
+  var xmlTagStart = new RegExp("<(/?)([" + nameStartChar + "][" + nameChar + "]*)", "g");
+
+  function Iter(cm, line, ch, range) {
+    this.line = line; this.ch = ch;
+    this.cm = cm; this.text = cm.getLine(line);
+    this.min = range ? Math.max(range.from, cm.firstLine()) : cm.firstLine();
+    this.max = range ? Math.min(range.to - 1, cm.lastLine()) : cm.lastLine();
+  }
+
+  function tagAt(iter, ch) {
+    var type = iter.cm.getTokenTypeAt(Pos(iter.line, ch));
+    return type && /\btag\b/.test(type);
+  }
+
+  function nextLine(iter) {
+    if (iter.line >= iter.max) return;
+    iter.ch = 0;
+    iter.text = iter.cm.getLine(++iter.line);
+    return true;
+  }
+  function prevLine(iter) {
+    if (iter.line <= iter.min) return;
+    iter.text = iter.cm.getLine(--iter.line);
+    iter.ch = iter.text.length;
+    return true;
+  }
+
+  function toTagEnd(iter) {
+    for (;;) {
+      var gt = iter.text.indexOf(">", iter.ch);
+      if (gt == -1) { if (nextLine(iter)) continue; else return; }
+      if (!tagAt(iter, gt + 1)) { iter.ch = gt + 1; continue; }
+      var lastSlash = iter.text.lastIndexOf("/", gt);
+      var selfClose = lastSlash > -1 && !/\S/.test(iter.text.slice(lastSlash + 1, gt));
+      iter.ch = gt + 1;
+      return selfClose ? "selfClose" : "regular";
+    }
+  }
+  function toTagStart(iter) {
+    for (;;) {
+      var lt = iter.ch ? iter.text.lastIndexOf("<", iter.ch - 1) : -1;
+      if (lt == -1) { if (prevLine(iter)) continue; else return; }
+      if (!tagAt(iter, lt + 1)) { iter.ch = lt; continue; }
+      xmlTagStart.lastIndex = lt;
+      iter.ch = lt;
+      var match = xmlTagStart.exec(iter.text);
+      if (match && match.index == lt) return match;
+    }
+  }
+
+  function toNextTag(iter) {
+    for (;;) {
+      xmlTagStart.lastIndex = iter.ch;
+      var found = xmlTagStart.exec(iter.text);
+      if (!found) { if (nextLine(iter)) continue; else return; }
+      if (!tagAt(iter, found.index + 1)) { iter.ch = found.index + 1; continue; }
+      iter.ch = found.index + found[0].length;
+      return found;
+    }
+  }
+  function toPrevTag(iter) {
+    for (;;) {
+      var gt = iter.ch ? iter.text.lastIndexOf(">", iter.ch - 1) : -1;
+      if (gt == -1) { if (prevLine(iter)) continue; else return; }
+      if (!tagAt(iter, gt + 1)) { iter.ch = gt; continue; }
+      var lastSlash = iter.text.lastIndexOf("/", gt);
+      var selfClose = lastSlash > -1 && !/\S/.test(iter.text.slice(lastSlash + 1, gt));
+      iter.ch = gt + 1;
+      return selfClose ? "selfClose" : "regular";
+    }
+  }
+
+  function findMatchingClose(iter, tag) {
+    var stack = [];
+    for (;;) {
+      var next = toNextTag(iter), end, startLine = iter.line, startCh = iter.ch - (next ? next[0].length : 0);
+      if (!next || !(end = toTagEnd(iter))) return;
+      if (end == "selfClose") continue;
+      if (next[1]) { // closing tag
+        for (var i = stack.length - 1; i >= 0; --i) if (stack[i] == next[2]) {
+          stack.length = i;
+          break;
+        }
+        if (i < 0 && (!tag || tag == next[2])) return {
+          tag: next[2],
+          from: Pos(startLine, startCh),
+          to: Pos(iter.line, iter.ch)
+        };
+      } else { // opening tag
+        stack.push(next[2]);
+      }
+    }
+  }
+  function findMatchingOpen(iter, tag) {
+    var stack = [];
+    for (;;) {
+      var prev = toPrevTag(iter);
+      if (!prev) return;
+      if (prev == "selfClose") { toTagStart(iter); continue; }
+      var endLine = iter.line, endCh = iter.ch;
+      var start = toTagStart(iter);
+      if (!start) return;
+      if (start[1]) { // closing tag
+        stack.push(start[2]);
+      } else { // opening tag
+        for (var i = stack.length - 1; i >= 0; --i) if (stack[i] == start[2]) {
+          stack.length = i;
+          break;
+        }
+        if (i < 0 && (!tag || tag == start[2])) return {
+          tag: start[2],
+          from: Pos(iter.line, iter.ch),
+          to: Pos(endLine, endCh)
+        };
+      }
+    }
+  }
+
+  CodeMirror.registerHelper("fold", "xml", function(cm, start) {
+    var iter = new Iter(cm, start.line, 0);
+    for (;;) {
+      var openTag = toNextTag(iter)
+      if (!openTag || iter.line != start.line) return
+      var end = toTagEnd(iter)
+      if (!end) return
+      if (!openTag[1] && end != "selfClose") {
+        var startPos = Pos(iter.line, iter.ch);
+        var endPos = findMatchingClose(iter, openTag[2]);
+        return endPos && cmp(endPos.from, startPos) > 0 ? {from: startPos, to: endPos.from} : null
+      }
+    }
+  });
+  CodeMirror.findMatchingTag = function(cm, pos, range) {
+    var iter = new Iter(cm, pos.line, pos.ch, range);
+    if (iter.text.indexOf(">") == -1 && iter.text.indexOf("<") == -1) return;
+    var end = toTagEnd(iter), to = end && Pos(iter.line, iter.ch);
+    var start = end && toTagStart(iter);
+    if (!end || !start || cmp(iter, pos) > 0) return;
+    var here = {from: Pos(iter.line, iter.ch), to: to, tag: start[2]};
+    if (end == "selfClose") return {open: here, close: null, at: "open"};
+
+    if (start[1]) { // closing tag
+      return {open: findMatchingOpen(iter, start[2]), close: here, at: "close"};
+    } else { // opening tag
+      iter = new Iter(cm, to.line, to.ch, range);
+      return {open: here, close: findMatchingClose(iter, start[2]), at: "open"};
+    }
+  };
+
+  CodeMirror.findEnclosingTag = function(cm, pos, range, tag) {
+    var iter = new Iter(cm, pos.line, pos.ch, range);
+    for (;;) {
+      var open = findMatchingOpen(iter, tag);
+      if (!open) break;
+      var forward = new Iter(cm, pos.line, pos.ch, range);
+      var close = findMatchingClose(forward, open.tag);
+      if (close) return {open: open, close: close};
+    }
+  };
+
+  // Used by addon/edit/closetag.js
+  CodeMirror.scanForClosingTag = function(cm, pos, name, end) {
+    var iter = new Iter(cm, pos.line, pos.ch, end ? {from: 0, to: end} : null);
+    return findMatchingClose(iter, name);
+  };
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/hint/anyword-hint.js

@@ -0,0 +1,41 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var WORD = /[\w$]+/, RANGE = 500;
+
+  CodeMirror.registerHelper("hint", "anyword", function(editor, options) {
+    var word = options && options.word || WORD;
+    var range = options && options.range || RANGE;
+    var cur = editor.getCursor(), curLine = editor.getLine(cur.line);
+    var end = cur.ch, start = end;
+    while (start && word.test(curLine.charAt(start - 1))) --start;
+    var curWord = start != end && curLine.slice(start, end);
+
+    var list = options && options.list || [], seen = {};
+    var re = new RegExp(word.source, "g");
+    for (var dir = -1; dir <= 1; dir += 2) {
+      var line = cur.line, endLine = Math.min(Math.max(line + dir * range, editor.firstLine()), editor.lastLine()) + dir;
+      for (; line != endLine; line += dir) {
+        var text = editor.getLine(line), m;
+        while (m = re.exec(text)) {
+          if (line == cur.line && m[0] === curWord) continue;
+          if ((!curWord || m[0].lastIndexOf(curWord, 0) == 0) && !Object.prototype.hasOwnProperty.call(seen, m[0])) {
+            seen[m[0]] = true;
+            list.push(m[0]);
+          }
+        }
+      }
+    }
+    return {list: list, from: CodeMirror.Pos(cur.line, start), to: CodeMirror.Pos(cur.line, end)};
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/hint/css-hint.js

@@ -0,0 +1,66 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../../mode/css/css"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../../mode/css/css"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var pseudoClasses = {"active":1, "after":1, "before":1, "checked":1, "default":1,
+    "disabled":1, "empty":1, "enabled":1, "first-child":1, "first-letter":1,
+    "first-line":1, "first-of-type":1, "focus":1, "hover":1, "in-range":1,
+    "indeterminate":1, "invalid":1, "lang":1, "last-child":1, "last-of-type":1,
+    "link":1, "not":1, "nth-child":1, "nth-last-child":1, "nth-last-of-type":1,
+    "nth-of-type":1, "only-of-type":1, "only-child":1, "optional":1, "out-of-range":1,
+    "placeholder":1, "read-only":1, "read-write":1, "required":1, "root":1,
+    "selection":1, "target":1, "valid":1, "visited":1
+  };
+
+  CodeMirror.registerHelper("hint", "css", function(cm) {
+    var cur = cm.getCursor(), token = cm.getTokenAt(cur);
+    var inner = CodeMirror.innerMode(cm.getMode(), token.state);
+    if (inner.mode.name != "css") return;
+
+    if (token.type == "keyword" && "!important".indexOf(token.string) == 0)
+      return {list: ["!important"], from: CodeMirror.Pos(cur.line, token.start),
+              to: CodeMirror.Pos(cur.line, token.end)};
+
+    var start = token.start, end = cur.ch, word = token.string.slice(0, end - start);
+    if (/[^\w$_-]/.test(word)) {
+      word = ""; start = end = cur.ch;
+    }
+
+    var spec = CodeMirror.resolveMode("text/css");
+
+    var result = [];
+    function add(keywords) {
+      for (var name in keywords)
+        if (!word || name.lastIndexOf(word, 0) == 0)
+          result.push(name);
+    }
+
+    var st = inner.state.state;
+    if (st == "pseudo" || token.type == "variable-3") {
+      add(pseudoClasses);
+    } else if (st == "block" || st == "maybeprop") {
+      add(spec.propertyKeywords);
+    } else if (st == "prop" || st == "parens" || st == "at" || st == "params") {
+      add(spec.valueKeywords);
+      add(spec.colorKeywords);
+    } else if (st == "media" || st == "media_parens") {
+      add(spec.mediaTypes);
+      add(spec.mediaFeatures);
+    }
+
+    if (result.length) return {
+      list: result,
+      from: CodeMirror.Pos(cur.line, start),
+      to: CodeMirror.Pos(cur.line, end)
+    };
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/hint/html-hint.js

@@ -0,0 +1,350 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("./xml-hint"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "./xml-hint"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var langs = "ab aa af ak sq am ar an hy as av ae ay az bm ba eu be bn bh bi bs br bg my ca ch ce ny zh cv kw co cr hr cs da dv nl dz en eo et ee fo fj fi fr ff gl ka de el gn gu ht ha he hz hi ho hu ia id ie ga ig ik io is it iu ja jv kl kn kr ks kk km ki rw ky kv kg ko ku kj la lb lg li ln lo lt lu lv gv mk mg ms ml mt mi mr mh mn na nv nb nd ne ng nn no ii nr oc oj cu om or os pa pi fa pl ps pt qu rm rn ro ru sa sc sd se sm sg sr gd sn si sk sl so st es su sw ss sv ta te tg th ti bo tk tl tn to tr ts tt tw ty ug uk ur uz ve vi vo wa cy wo fy xh yi yo za zu".split(" ");
+  var targets = ["_blank", "_self", "_top", "_parent"];
+  var charsets = ["ascii", "utf-8", "utf-16", "latin1", "latin1"];
+  var methods = ["get", "post", "put", "delete"];
+  var encs = ["application/x-www-form-urlencoded", "multipart/form-data", "text/plain"];
+  var media = ["all", "screen", "print", "embossed", "braille", "handheld", "print", "projection", "screen", "tty", "tv", "speech",
+               "3d-glasses", "resolution [>][<][=] [X]", "device-aspect-ratio: X/Y", "orientation:portrait",
+               "orientation:landscape", "device-height: [X]", "device-width: [X]"];
+  var s = { attrs: {} }; // Simple tag, reused for a whole lot of tags
+
+  var data = {
+    a: {
+      attrs: {
+        href: null, ping: null, type: null,
+        media: media,
+        target: targets,
+        hreflang: langs
+      }
+    },
+    abbr: s,
+    acronym: s,
+    address: s,
+    applet: s,
+    area: {
+      attrs: {
+        alt: null, coords: null, href: null, target: null, ping: null,
+        media: media, hreflang: langs, type: null,
+        shape: ["default", "rect", "circle", "poly"]
+      }
+    },
+    article: s,
+    aside: s,
+    audio: {
+      attrs: {
+        src: null, mediagroup: null,
+        crossorigin: ["anonymous", "use-credentials"],
+        preload: ["none", "metadata", "auto"],
+        autoplay: ["", "autoplay"],
+        loop: ["", "loop"],
+        controls: ["", "controls"]
+      }
+    },
+    b: s,
+    base: { attrs: { href: null, target: targets } },
+    basefont: s,
+    bdi: s,
+    bdo: s,
+    big: s,
+    blockquote: { attrs: { cite: null } },
+    body: s,
+    br: s,
+    button: {
+      attrs: {
+        form: null, formaction: null, name: null, value: null,
+        autofocus: ["", "autofocus"],
+        disabled: ["", "autofocus"],
+        formenctype: encs,
+        formmethod: methods,
+        formnovalidate: ["", "novalidate"],
+        formtarget: targets,
+        type: ["submit", "reset", "button"]
+      }
+    },
+    canvas: { attrs: { width: null, height: null } },
+    caption: s,
+    center: s,
+    cite: s,
+    code: s,
+    col: { attrs: { span: null } },
+    colgroup: { attrs: { span: null } },
+    command: {
+      attrs: {
+        type: ["command", "checkbox", "radio"],
+        label: null, icon: null, radiogroup: null, command: null, title: null,
+        disabled: ["", "disabled"],
+        checked: ["", "checked"]
+      }
+    },
+    data: { attrs: { value: null } },
+    datagrid: { attrs: { disabled: ["", "disabled"], multiple: ["", "multiple"] } },
+    datalist: { attrs: { data: null } },
+    dd: s,
+    del: { attrs: { cite: null, datetime: null } },
+    details: { attrs: { open: ["", "open"] } },
+    dfn: s,
+    dir: s,
+    div: s,
+    dl: s,
+    dt: s,
+    em: s,
+    embed: { attrs: { src: null, type: null, width: null, height: null } },
+    eventsource: { attrs: { src: null } },
+    fieldset: { attrs: { disabled: ["", "disabled"], form: null, name: null } },
+    figcaption: s,
+    figure: s,
+    font: s,
+    footer: s,
+    form: {
+      attrs: {
+        action: null, name: null,
+        "accept-charset": charsets,
+        autocomplete: ["on", "off"],
+        enctype: encs,
+        method: methods,
+        novalidate: ["", "novalidate"],
+        target: targets
+      }
+    },
+    frame: s,
+    frameset: s,
+    h1: s, h2: s, h3: s, h4: s, h5: s, h6: s,
+    head: {
+      attrs: {},
+      children: ["title", "base", "link", "style", "meta", "script", "noscript", "command"]
+    },
+    header: s,
+    hgroup: s,
+    hr: s,
+    html: {
+      attrs: { manifest: null },
+      children: ["head", "body"]
+    },
+    i: s,
+    iframe: {
+      attrs: {
+        src: null, srcdoc: null, name: null, width: null, height: null,
+        sandbox: ["allow-top-navigation", "allow-same-origin", "allow-forms", "allow-scripts"],
+        seamless: ["", "seamless"]
+      }
+    },
+    img: {
+      attrs: {
+        alt: null, src: null, ismap: null, usemap: null, width: null, height: null,
+        crossorigin: ["anonymous", "use-credentials"]
+      }
+    },
+    input: {
+      attrs: {
+        alt: null, dirname: null, form: null, formaction: null,
+        height: null, list: null, max: null, maxlength: null, min: null,
+        name: null, pattern: null, placeholder: null, size: null, src: null,
+        step: null, value: null, width: null,
+        accept: ["audio/*", "video/*", "image/*"],
+        autocomplete: ["on", "off"],
+        autofocus: ["", "autofocus"],
+        checked: ["", "checked"],
+        disabled: ["", "disabled"],
+        formenctype: encs,
+        formmethod: methods,
+        formnovalidate: ["", "novalidate"],
+        formtarget: targets,
+        multiple: ["", "multiple"],
+        readonly: ["", "readonly"],
+        required: ["", "required"],
+        type: ["hidden", "text", "search", "tel", "url", "email", "password", "datetime", "date", "month",
+               "week", "time", "datetime-local", "number", "range", "color", "checkbox", "radio",
+               "file", "submit", "image", "reset", "button"]
+      }
+    },
+    ins: { attrs: { cite: null, datetime: null } },
+    kbd: s,
+    keygen: {
+      attrs: {
+        challenge: null, form: null, name: null,
+        autofocus: ["", "autofocus"],
+        disabled: ["", "disabled"],
+        keytype: ["RSA"]
+      }
+    },
+    label: { attrs: { "for": null, form: null } },
+    legend: s,
+    li: { attrs: { value: null } },
+    link: {
+      attrs: {
+        href: null, type: null,
+        hreflang: langs,
+        media: media,
+        sizes: ["all", "16x16", "16x16 32x32", "16x16 32x32 64x64"]
+      }
+    },
+    map: { attrs: { name: null } },
+    mark: s,
+    menu: { attrs: { label: null, type: ["list", "context", "toolbar"] } },
+    meta: {
+      attrs: {
+        content: null,
+        charset: charsets,
+        name: ["viewport", "application-name", "author", "description", "generator", "keywords"],
+        "http-equiv": ["content-language", "content-type", "default-style", "refresh"]
+      }
+    },
+    meter: { attrs: { value: null, min: null, low: null, high: null, max: null, optimum: null } },
+    nav: s,
+    noframes: s,
+    noscript: s,
+    object: {
+      attrs: {
+        data: null, type: null, name: null, usemap: null, form: null, width: null, height: null,
+        typemustmatch: ["", "typemustmatch"]
+      }
+    },
+    ol: { attrs: { reversed: ["", "reversed"], start: null, type: ["1", "a", "A", "i", "I"] } },
+    optgroup: { attrs: { disabled: ["", "disabled"], label: null } },
+    option: { attrs: { disabled: ["", "disabled"], label: null, selected: ["", "selected"], value: null } },
+    output: { attrs: { "for": null, form: null, name: null } },
+    p: s,
+    param: { attrs: { name: null, value: null } },
+    pre: s,
+    progress: { attrs: { value: null, max: null } },
+    q: { attrs: { cite: null } },
+    rp: s,
+    rt: s,
+    ruby: s,
+    s: s,
+    samp: s,
+    script: {
+      attrs: {
+        type: ["text/javascript"],
+        src: null,
+        async: ["", "async"],
+        defer: ["", "defer"],
+        charset: charsets
+      }
+    },
+    section: s,
+    select: {
+      attrs: {
+        form: null, name: null, size: null,
+        autofocus: ["", "autofocus"],
+        disabled: ["", "disabled"],
+        multiple: ["", "multiple"]
+      }
+    },
+    small: s,
+    source: { attrs: { src: null, type: null, media: null } },
+    span: s,
+    strike: s,
+    strong: s,
+    style: {
+      attrs: {
+        type: ["text/css"],
+        media: media,
+        scoped: null
+      }
+    },
+    sub: s,
+    summary: s,
+    sup: s,
+    table: s,
+    tbody: s,
+    td: { attrs: { colspan: null, rowspan: null, headers: null } },
+    textarea: {
+      attrs: {
+        dirname: null, form: null, maxlength: null, name: null, placeholder: null,
+        rows: null, cols: null,
+        autofocus: ["", "autofocus"],
+        disabled: ["", "disabled"],
+        readonly: ["", "readonly"],
+        required: ["", "required"],
+        wrap: ["soft", "hard"]
+      }
+    },
+    tfoot: s,
+    th: { attrs: { colspan: null, rowspan: null, headers: null, scope: ["row", "col", "rowgroup", "colgroup"] } },
+    thead: s,
+    time: { attrs: { datetime: null } },
+    title: s,
+    tr: s,
+    track: {
+      attrs: {
+        src: null, label: null, "default": null,
+        kind: ["subtitles", "captions", "descriptions", "chapters", "metadata"],
+        srclang: langs
+      }
+    },
+    tt: s,
+    u: s,
+    ul: s,
+    "var": s,
+    video: {
+      attrs: {
+        src: null, poster: null, width: null, height: null,
+        crossorigin: ["anonymous", "use-credentials"],
+        preload: ["auto", "metadata", "none"],
+        autoplay: ["", "autoplay"],
+        mediagroup: ["movie"],
+        muted: ["", "muted"],
+        controls: ["", "controls"]
+      }
+    },
+    wbr: s
+  };
+
+  var globalAttrs = {
+    accesskey: ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9"],
+    "class": null,
+    contenteditable: ["true", "false"],
+    contextmenu: null,
+    dir: ["ltr", "rtl", "auto"],
+    draggable: ["true", "false", "auto"],
+    dropzone: ["copy", "move", "link", "string:", "file:"],
+    hidden: ["hidden"],
+    id: null,
+    inert: ["inert"],
+    itemid: null,
+    itemprop: null,
+    itemref: null,
+    itemscope: ["itemscope"],
+    itemtype: null,
+    lang: ["en", "es"],
+    spellcheck: ["true", "false"],
+    autocorrect: ["true", "false"],
+    autocapitalize: ["true", "false"],
+    style: null,
+    tabindex: ["1", "2", "3", "4", "5", "6", "7", "8", "9"],
+    title: null,
+    translate: ["yes", "no"],
+    onclick: null,
+    rel: ["stylesheet", "alternate", "author", "bookmark", "help", "license", "next", "nofollow", "noreferrer", "prefetch", "prev", "search", "tag"]
+  };
+  function populate(obj) {
+    for (var attr in globalAttrs) if (globalAttrs.hasOwnProperty(attr))
+      obj.attrs[attr] = globalAttrs[attr];
+  }
+
+  populate(s);
+  for (var tag in data) if (data.hasOwnProperty(tag) && data[tag] != s)
+    populate(data[tag]);
+
+  CodeMirror.htmlSchema = data;
+  function htmlHint(cm, options) {
+    var local = {schemaInfo: data};
+    if (options) for (var opt in options) local[opt] = options[opt];
+    return CodeMirror.hint.xml(cm, local);
+  }
+  CodeMirror.registerHelper("hint", "html", htmlHint);
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/hint/javascript-hint.js

@@ -0,0 +1,162 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  var Pos = CodeMirror.Pos;
+
+  function forEach(arr, f) {
+    for (var i = 0, e = arr.length; i < e; ++i) f(arr[i]);
+  }
+
+  function arrayContains(arr, item) {
+    if (!Array.prototype.indexOf) {
+      var i = arr.length;
+      while (i--) {
+        if (arr[i] === item) {
+          return true;
+        }
+      }
+      return false;
+    }
+    return arr.indexOf(item) != -1;
+  }
+
+  function scriptHint(editor, keywords, getToken, options) {
+    // Find the token at the cursor
+    var cur = editor.getCursor(), token = getToken(editor, cur);
+    if (/\b(?:string|comment)\b/.test(token.type)) return;
+    var innerMode = CodeMirror.innerMode(editor.getMode(), token.state);
+    if (innerMode.mode.helperType === "json") return;
+    token.state = innerMode.state;
+
+    // If it's not a 'word-style' token, ignore the token.
+    if (!/^[\w$_]*$/.test(token.string)) {
+      token = {start: cur.ch, end: cur.ch, string: "", state: token.state,
+               type: token.string == "." ? "property" : null};
+    } else if (token.end > cur.ch) {
+      token.end = cur.ch;
+      token.string = token.string.slice(0, cur.ch - token.start);
+    }
+
+    var tprop = token;
+    // If it is a property, find out what it is a property of.
+    while (tprop.type == "property") {
+      tprop = getToken(editor, Pos(cur.line, tprop.start));
+      if (tprop.string != ".") return;
+      tprop = getToken(editor, Pos(cur.line, tprop.start));
+      if (!context) var context = [];
+      context.push(tprop);
+    }
+    return {list: getCompletions(token, context, keywords, options),
+            from: Pos(cur.line, token.start),
+            to: Pos(cur.line, token.end)};
+  }
+
+  function javascriptHint(editor, options) {
+    return scriptHint(editor, javascriptKeywords,
+                      function (e, cur) {return e.getTokenAt(cur);},
+                      options);
+  };
+  CodeMirror.registerHelper("hint", "javascript", javascriptHint);
+
+  function getCoffeeScriptToken(editor, cur) {
+  // This getToken, it is for coffeescript, imitates the behavior of
+  // getTokenAt method in javascript.js, that is, returning "property"
+  // type and treat "." as indepenent token.
+    var token = editor.getTokenAt(cur);
+    if (cur.ch == token.start + 1 && token.string.charAt(0) == '.') {
+      token.end = token.start;
+      token.string = '.';
+      token.type = "property";
+    }
+    else if (/^\.[\w$_]*$/.test(token.string)) {
+      token.type = "property";
+      token.start++;
+      token.string = token.string.replace(/\./, '');
+    }
+    return token;
+  }
+
+  function coffeescriptHint(editor, options) {
+    return scriptHint(editor, coffeescriptKeywords, getCoffeeScriptToken, options);
+  }
+  CodeMirror.registerHelper("hint", "coffeescript", coffeescriptHint);
+
+  var stringProps = ("charAt charCodeAt indexOf lastIndexOf substring substr slice trim trimLeft trimRight " +
+                     "toUpperCase toLowerCase split concat match replace search").split(" ");
+  var arrayProps = ("length concat join splice push pop shift unshift slice reverse sort indexOf " +
+                    "lastIndexOf every some filter forEach map reduce reduceRight ").split(" ");
+  var funcProps = "prototype apply call bind".split(" ");
+  var javascriptKeywords = ("break case catch class const continue debugger default delete do else export extends false finally for function " +
+                  "if in import instanceof new null return super switch this throw true try typeof var void while with yield").split(" ");
+  var coffeescriptKeywords = ("and break catch class continue delete do else extends false finally for " +
+                  "if in instanceof isnt new no not null of off on or return switch then throw true try typeof until void while with yes").split(" ");
+
+  function forAllProps(obj, callback) {
+    if (!Object.getOwnPropertyNames || !Object.getPrototypeOf) {
+      for (var name in obj) callback(name)
+    } else {
+      for (var o = obj; o; o = Object.getPrototypeOf(o))
+        Object.getOwnPropertyNames(o).forEach(callback)
+    }
+  }
+
+  function getCompletions(token, context, keywords, options) {
+    var found = [], start = token.string, global = options && options.globalScope || window;
+    function maybeAdd(str) {
+      if (str.lastIndexOf(start, 0) == 0 && !arrayContains(found, str)) found.push(str);
+    }
+    function gatherCompletions(obj) {
+      if (typeof obj == "string") forEach(stringProps, maybeAdd);
+      else if (obj instanceof Array) forEach(arrayProps, maybeAdd);
+      else if (obj instanceof Function) forEach(funcProps, maybeAdd);
+      forAllProps(obj, maybeAdd)
+    }
+
+    if (context && context.length) {
+      // If this is a property, see if it belongs to some object we can
+      // find in the current environment.
+      var obj = context.pop(), base;
+      if (obj.type && obj.type.indexOf("variable") === 0) {
+        if (options && options.additionalContext)
+          base = options.additionalContext[obj.string];
+        if (!options || options.useGlobalScope !== false)
+          base = base || global[obj.string];
+      } else if (obj.type == "string") {
+        base = "";
+      } else if (obj.type == "atom") {
+        base = 1;
+      } else if (obj.type == "function") {
+        if (global.jQuery != null && (obj.string == '$' || obj.string == 'jQuery') &&
+            (typeof global.jQuery == 'function'))
+          base = global.jQuery();
+        else if (global._ != null && (obj.string == '_') && (typeof global._ == 'function'))
+          base = global._();
+      }
+      while (base != null && context.length)
+        base = base[context.pop().string];
+      if (base != null) gatherCompletions(base);
+    } else {
+      // If not, just look in the global object, any local scope, and optional additional-context
+      // (reading into JS mode internals to get at the local and global variables)
+      for (var v = token.state.localVars; v; v = v.next) maybeAdd(v.name);
+      for (var c = token.state.context; c; c = c.prev)
+        for (var v = c.vars; v; v = v.next) maybeAdd(v.name)
+      for (var v = token.state.globalVars; v; v = v.next) maybeAdd(v.name);
+      if (options && options.additionalContext != null)
+        for (var key in options.additionalContext)
+          maybeAdd(key);
+      if (!options || options.useGlobalScope !== false)
+        gatherCompletions(global);
+      forEach(keywords, maybeAdd);
+    }
+    return found;
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/hint/show-hint.css

@@ -0,0 +1,36 @@
+.CodeMirror-hints {
+  position: absolute;
+  z-index: 10;
+  overflow: hidden;
+  list-style: none;
+
+  margin: 0;
+  padding: 2px;
+
+  -webkit-box-shadow: 2px 3px 5px rgba(0,0,0,.2);
+  -moz-box-shadow: 2px 3px 5px rgba(0,0,0,.2);
+  box-shadow: 2px 3px 5px rgba(0,0,0,.2);
+  border-radius: 3px;
+  border: 1px solid silver;
+
+  background: white;
+  font-size: 90%;
+  font-family: monospace;
+
+  max-height: 20em;
+  overflow-y: auto;
+}
+
+.CodeMirror-hint {
+  margin: 0;
+  padding: 0 4px;
+  border-radius: 2px;
+  white-space: pre;
+  color: black;
+  cursor: pointer;
+}
+
+li.CodeMirror-hint-active {
+  background: #08f;
+  color: white;
+}

venv/Lib/site-packages/notebook/static/components/codemirror/addon/hint/show-hint.js

@@ -0,0 +1,479 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var HINT_ELEMENT_CLASS        = "CodeMirror-hint";
+  var ACTIVE_HINT_ELEMENT_CLASS = "CodeMirror-hint-active";
+
+  // This is the old interface, kept around for now to stay
+  // backwards-compatible.
+  CodeMirror.showHint = function(cm, getHints, options) {
+    if (!getHints) return cm.showHint(options);
+    if (options && options.async) getHints.async = true;
+    var newOpts = {hint: getHints};
+    if (options) for (var prop in options) newOpts[prop] = options[prop];
+    return cm.showHint(newOpts);
+  };
+
+  CodeMirror.defineExtension("showHint", function(options) {
+    options = parseOptions(this, this.getCursor("start"), options);
+    var selections = this.listSelections()
+    if (selections.length > 1) return;
+    // By default, don't allow completion when something is selected.
+    // A hint function can have a `supportsSelection` property to
+    // indicate that it can handle selections.
+    if (this.somethingSelected()) {
+      if (!options.hint.supportsSelection) return;
+      // Don't try with cross-line selections
+      for (var i = 0; i < selections.length; i++)
+        if (selections[i].head.line != selections[i].anchor.line) return;
+    }
+
+    if (this.state.completionActive) this.state.completionActive.close();
+    var completion = this.state.completionActive = new Completion(this, options);
+    if (!completion.options.hint) return;
+
+    CodeMirror.signal(this, "startCompletion", this);
+    completion.update(true);
+  });
+
+  CodeMirror.defineExtension("closeHint", function() {
+    if (this.state.completionActive) this.state.completionActive.close()
+  })
+
+  function Completion(cm, options) {
+    this.cm = cm;
+    this.options = options;
+    this.widget = null;
+    this.debounce = 0;
+    this.tick = 0;
+    this.startPos = this.cm.getCursor("start");
+    this.startLen = this.cm.getLine(this.startPos.line).length - this.cm.getSelection().length;
+
+    var self = this;
+    cm.on("cursorActivity", this.activityFunc = function() { self.cursorActivity(); });
+  }
+
+  var requestAnimationFrame = window.requestAnimationFrame || function(fn) {
+    return setTimeout(fn, 1000/60);
+  };
+  var cancelAnimationFrame = window.cancelAnimationFrame || clearTimeout;
+
+  Completion.prototype = {
+    close: function() {
+      if (!this.active()) return;
+      this.cm.state.completionActive = null;
+      this.tick = null;
+      this.cm.off("cursorActivity", this.activityFunc);
+
+      if (this.widget && this.data) CodeMirror.signal(this.data, "close");
+      if (this.widget) this.widget.close();
+      CodeMirror.signal(this.cm, "endCompletion", this.cm);
+    },
+
+    active: function() {
+      return this.cm.state.completionActive == this;
+    },
+
+    pick: function(data, i) {
+      var completion = data.list[i], self = this;
+      this.cm.operation(function() {
+        if (completion.hint)
+          completion.hint(self.cm, data, completion);
+        else
+          self.cm.replaceRange(getText(completion), completion.from || data.from,
+                               completion.to || data.to, "complete");
+        CodeMirror.signal(data, "pick", completion);
+        self.cm.scrollIntoView();
+      })
+      this.close();
+    },
+
+    cursorActivity: function() {
+      if (this.debounce) {
+        cancelAnimationFrame(this.debounce);
+        this.debounce = 0;
+      }
+
+      var identStart = this.startPos;
+      if(this.data) {
+        identStart = this.data.from;
+      }
+
+      var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line);
+      if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch ||
+          pos.ch < identStart.ch || this.cm.somethingSelected() ||
+          (!pos.ch || this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) {
+        this.close();
+      } else {
+        var self = this;
+        this.debounce = requestAnimationFrame(function() {self.update();});
+        if (this.widget) this.widget.disable();
+      }
+    },
+
+    update: function(first) {
+      if (this.tick == null) return
+      var self = this, myTick = ++this.tick
+      fetchHints(this.options.hint, this.cm, this.options, function(data) {
+        if (self.tick == myTick) self.finishUpdate(data, first)
+      })
+    },
+
+    finishUpdate: function(data, first) {
+      if (this.data) CodeMirror.signal(this.data, "update");
+
+      var picked = (this.widget && this.widget.picked) || (first && this.options.completeSingle);
+      if (this.widget) this.widget.close();
+
+      this.data = data;
+
+      if (data && data.list.length) {
+        if (picked && data.list.length == 1) {
+          this.pick(data, 0);
+        } else {
+          this.widget = new Widget(this, data);
+          CodeMirror.signal(data, "shown");
+        }
+      }
+    }
+  };
+
+  function parseOptions(cm, pos, options) {
+    var editor = cm.options.hintOptions;
+    var out = {};
+    for (var prop in defaultOptions) out[prop] = defaultOptions[prop];
+    if (editor) for (var prop in editor)
+      if (editor[prop] !== undefined) out[prop] = editor[prop];
+    if (options) for (var prop in options)
+      if (options[prop] !== undefined) out[prop] = options[prop];
+    if (out.hint.resolve) out.hint = out.hint.resolve(cm, pos)
+    return out;
+  }
+
+  function getText(completion) {
+    if (typeof completion == "string") return completion;
+    else return completion.text;
+  }
+
+  function buildKeyMap(completion, handle) {
+    var baseMap = {
+      Up: function() {handle.moveFocus(-1);},
+      Down: function() {handle.moveFocus(1);},
+      PageUp: function() {handle.moveFocus(-handle.menuSize() + 1, true);},
+      PageDown: function() {handle.moveFocus(handle.menuSize() - 1, true);},
+      Home: function() {handle.setFocus(0);},
+      End: function() {handle.setFocus(handle.length - 1);},
+      Enter: handle.pick,
+      Tab: handle.pick,
+      Esc: handle.close
+    };
+
+    var mac = /Mac/.test(navigator.platform);
+
+    if (mac) {
+      baseMap["Ctrl-P"] = function() {handle.moveFocus(-1);};
+      baseMap["Ctrl-N"] = function() {handle.moveFocus(1);};
+    }
+
+    var custom = completion.options.customKeys;
+    var ourMap = custom ? {} : baseMap;
+    function addBinding(key, val) {
+      var bound;
+      if (typeof val != "string")
+        bound = function(cm) { return val(cm, handle); };
+      // This mechanism is deprecated
+      else if (baseMap.hasOwnProperty(val))
+        bound = baseMap[val];
+      else
+        bound = val;
+      ourMap[key] = bound;
+    }
+    if (custom)
+      for (var key in custom) if (custom.hasOwnProperty(key))
+        addBinding(key, custom[key]);
+    var extra = completion.options.extraKeys;
+    if (extra)
+      for (var key in extra) if (extra.hasOwnProperty(key))
+        addBinding(key, extra[key]);
+    return ourMap;
+  }
+
+  function getHintElement(hintsElement, el) {
+    while (el && el != hintsElement) {
+      if (el.nodeName.toUpperCase() === "LI" && el.parentNode == hintsElement) return el;
+      el = el.parentNode;
+    }
+  }
+
+  function Widget(completion, data) {
+    this.completion = completion;
+    this.data = data;
+    this.picked = false;
+    var widget = this, cm = completion.cm;
+    var ownerDocument = cm.getInputField().ownerDocument;
+    var parentWindow = ownerDocument.defaultView || ownerDocument.parentWindow;
+
+    var hints = this.hints = ownerDocument.createElement("ul");
+    var theme = completion.cm.options.theme;
+    hints.className = "CodeMirror-hints " + theme;
+    this.selectedHint = data.selectedHint || 0;
+
+    var completions = data.list;
+    for (var i = 0; i < completions.length; ++i) {
+      var elt = hints.appendChild(ownerDocument.createElement("li")), cur = completions[i];
+      var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS);
+      if (cur.className != null) className = cur.className + " " + className;
+      elt.className = className;
+      if (cur.render) cur.render(elt, data, cur);
+      else elt.appendChild(ownerDocument.createTextNode(cur.displayText || getText(cur)));
+      elt.hintId = i;
+    }
+
+    var container = completion.options.container || ownerDocument.body;
+    var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null);
+    var left = pos.left, top = pos.bottom, below = true;
+    var offsetLeft = 0, offsetTop = 0;
+    if (container !== ownerDocument.body) {
+      // We offset the cursor position because left and top are relative to the offsetParent's top left corner.
+      var isContainerPositioned = ['absolute', 'relative', 'fixed'].indexOf(parentWindow.getComputedStyle(container).position) !== -1;
+      var offsetParent = isContainerPositioned ? container : container.offsetParent;
+      var offsetParentPosition = offsetParent.getBoundingClientRect();
+      var bodyPosition = ownerDocument.body.getBoundingClientRect();
+      offsetLeft = (offsetParentPosition.left - bodyPosition.left - offsetParent.scrollLeft);
+      offsetTop = (offsetParentPosition.top - bodyPosition.top - offsetParent.scrollTop);
+    }
+    hints.style.left = (left - offsetLeft) + "px";
+    hints.style.top = (top - offsetTop) + "px";
+
+    // If we're at the edge of the screen, then we want the menu to appear on the left of the cursor.
+    var winW = parentWindow.innerWidth || Math.max(ownerDocument.body.offsetWidth, ownerDocument.documentElement.offsetWidth);
+    var winH = parentWindow.innerHeight || Math.max(ownerDocument.body.offsetHeight, ownerDocument.documentElement.offsetHeight);
+    container.appendChild(hints);
+    var box = hints.getBoundingClientRect(), overlapY = box.bottom - winH;
+    var scrolls = hints.scrollHeight > hints.clientHeight + 1
+    var startScroll = cm.getScrollInfo();
+
+    if (overlapY > 0) {
+      var height = box.bottom - box.top, curTop = pos.top - (pos.bottom - box.top);
+      if (curTop - height > 0) { // Fits above cursor
+        hints.style.top = (top = pos.top - height - offsetTop) + "px";
+        below = false;
+      } else if (height > winH) {
+        hints.style.height = (winH - 5) + "px";
+        hints.style.top = (top = pos.bottom - box.top - offsetTop) + "px";
+        var cursor = cm.getCursor();
+        if (data.from.ch != cursor.ch) {
+          pos = cm.cursorCoords(cursor);
+          hints.style.left = (left = pos.left - offsetLeft) + "px";
+          box = hints.getBoundingClientRect();
+        }
+      }
+    }
+    var overlapX = box.right - winW;
+    if (overlapX > 0) {
+      if (box.right - box.left > winW) {
+        hints.style.width = (winW - 5) + "px";
+        overlapX -= (box.right - box.left) - winW;
+      }
+      hints.style.left = (left = pos.left - overlapX - offsetLeft) + "px";
+    }
+    if (scrolls) for (var node = hints.firstChild; node; node = node.nextSibling)
+      node.style.paddingRight = cm.display.nativeBarWidth + "px"
+
+    cm.addKeyMap(this.keyMap = buildKeyMap(completion, {
+      moveFocus: function(n, avoidWrap) { widget.changeActive(widget.selectedHint + n, avoidWrap); },
+      setFocus: function(n) { widget.changeActive(n); },
+      menuSize: function() { return widget.screenAmount(); },
+      length: completions.length,
+      close: function() { completion.close(); },
+      pick: function() { widget.pick(); },
+      data: data
+    }));
+
+    if (completion.options.closeOnUnfocus) {
+      var closingOnBlur;
+      cm.on("blur", this.onBlur = function() { closingOnBlur = setTimeout(function() { completion.close(); }, 100); });
+      cm.on("focus", this.onFocus = function() { clearTimeout(closingOnBlur); });
+    }
+
+    cm.on("scroll", this.onScroll = function() {
+      var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect();
+      var newTop = top + startScroll.top - curScroll.top;
+      var point = newTop - (parentWindow.pageYOffset || (ownerDocument.documentElement || ownerDocument.body).scrollTop);
+      if (!below) point += hints.offsetHeight;
+      if (point <= editor.top || point >= editor.bottom) return completion.close();
+      hints.style.top = newTop + "px";
+      hints.style.left = (left + startScroll.left - curScroll.left) + "px";
+    });
+
+    CodeMirror.on(hints, "dblclick", function(e) {
+      var t = getHintElement(hints, e.target || e.srcElement);
+      if (t && t.hintId != null) {widget.changeActive(t.hintId); widget.pick();}
+    });
+
+    CodeMirror.on(hints, "click", function(e) {
+      var t = getHintElement(hints, e.target || e.srcElement);
+      if (t && t.hintId != null) {
+        widget.changeActive(t.hintId);
+        if (completion.options.completeOnSingleClick) widget.pick();
+      }
+    });
+
+    CodeMirror.on(hints, "mousedown", function() {
+      setTimeout(function(){cm.focus();}, 20);
+    });
+    this.scrollToActive()
+
+    CodeMirror.signal(data, "select", completions[this.selectedHint], hints.childNodes[this.selectedHint]);
+    return true;
+  }
+
+  Widget.prototype = {
+    close: function() {
+      if (this.completion.widget != this) return;
+      this.completion.widget = null;
+      this.hints.parentNode.removeChild(this.hints);
+      this.completion.cm.removeKeyMap(this.keyMap);
+
+      var cm = this.completion.cm;
+      if (this.completion.options.closeOnUnfocus) {
+        cm.off("blur", this.onBlur);
+        cm.off("focus", this.onFocus);
+      }
+      cm.off("scroll", this.onScroll);
+    },
+
+    disable: function() {
+      this.completion.cm.removeKeyMap(this.keyMap);
+      var widget = this;
+      this.keyMap = {Enter: function() { widget.picked = true; }};
+      this.completion.cm.addKeyMap(this.keyMap);
+    },
+
+    pick: function() {
+      this.completion.pick(this.data, this.selectedHint);
+    },
+
+    changeActive: function(i, avoidWrap) {
+      if (i >= this.data.list.length)
+        i = avoidWrap ? this.data.list.length - 1 : 0;
+      else if (i < 0)
+        i = avoidWrap ? 0  : this.data.list.length - 1;
+      if (this.selectedHint == i) return;
+      var node = this.hints.childNodes[this.selectedHint];
+      if (node) node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, "");
+      node = this.hints.childNodes[this.selectedHint = i];
+      node.className += " " + ACTIVE_HINT_ELEMENT_CLASS;
+      this.scrollToActive()
+      CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node);
+    },
+
+    scrollToActive: function() {
+      var margin = this.completion.options.scrollMargin || 0;
+      var node1 = this.hints.childNodes[Math.max(0, this.selectedHint - margin)];
+      var node2 = this.hints.childNodes[Math.min(this.data.list.length - 1, this.selectedHint + margin)];
+      var firstNode = this.hints.firstChild;
+      if (node1.offsetTop < this.hints.scrollTop)
+        this.hints.scrollTop = node1.offsetTop - firstNode.offsetTop;
+      else if (node2.offsetTop + node2.offsetHeight > this.hints.scrollTop + this.hints.clientHeight)
+        this.hints.scrollTop = node2.offsetTop + node2.offsetHeight - this.hints.clientHeight + firstNode.offsetTop;
+    },
+
+    screenAmount: function() {
+      return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1;
+    }
+  };
+
+  function applicableHelpers(cm, helpers) {
+    if (!cm.somethingSelected()) return helpers
+    var result = []
+    for (var i = 0; i < helpers.length; i++)
+      if (helpers[i].supportsSelection) result.push(helpers[i])
+    return result
+  }
+
+  function fetchHints(hint, cm, options, callback) {
+    if (hint.async) {
+      hint(cm, callback, options)
+    } else {
+      var result = hint(cm, options)
+      if (result && result.then) result.then(callback)
+      else callback(result)
+    }
+  }
+
+  function resolveAutoHints(cm, pos) {
+    var helpers = cm.getHelpers(pos, "hint"), words
+    if (helpers.length) {
+      var resolved = function(cm, callback, options) {
+        var app = applicableHelpers(cm, helpers);
+        function run(i) {
+          if (i == app.length) return callback(null)
+          fetchHints(app[i], cm, options, function(result) {
+            if (result && result.list.length > 0) callback(result)
+            else run(i + 1)
+          })
+        }
+        run(0)
+      }
+      resolved.async = true
+      resolved.supportsSelection = true
+      return resolved
+    } else if (words = cm.getHelper(cm.getCursor(), "hintWords")) {
+      return function(cm) { return CodeMirror.hint.fromList(cm, {words: words}) }
+    } else if (CodeMirror.hint.anyword) {
+      return function(cm, options) { return CodeMirror.hint.anyword(cm, options) }
+    } else {
+      return function() {}
+    }
+  }
+
+  CodeMirror.registerHelper("hint", "auto", {
+    resolve: resolveAutoHints
+  });
+
+  CodeMirror.registerHelper("hint", "fromList", function(cm, options) {
+    var cur = cm.getCursor(), token = cm.getTokenAt(cur)
+    var term, from = CodeMirror.Pos(cur.line, token.start), to = cur
+    if (token.start < cur.ch && /\w/.test(token.string.charAt(cur.ch - token.start - 1))) {
+      term = token.string.substr(0, cur.ch - token.start)
+    } else {
+      term = ""
+      from = cur
+    }
+    var found = [];
+    for (var i = 0; i < options.words.length; i++) {
+      var word = options.words[i];
+      if (word.slice(0, term.length) == term)
+        found.push(word);
+    }
+
+    if (found.length) return {list: found, from: from, to: to};
+  });
+
+  CodeMirror.commands.autocomplete = CodeMirror.showHint;
+
+  var defaultOptions = {
+    hint: CodeMirror.hint.auto,
+    completeSingle: true,
+    alignWithWord: true,
+    closeCharacters: /[\s()\[\]{};:>,]/,
+    closeOnUnfocus: true,
+    completeOnSingleClick: true,
+    container: null,
+    customKeys: null,
+    extraKeys: null
+  };
+
+  CodeMirror.defineOption("hintOptions", null);
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/hint/sql-hint.js

@@ -0,0 +1,304 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../../mode/sql/sql"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../../mode/sql/sql"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var tables;
+  var defaultTable;
+  var keywords;
+  var identifierQuote;
+  var CONS = {
+    QUERY_DIV: ";",
+    ALIAS_KEYWORD: "AS"
+  };
+  var Pos = CodeMirror.Pos, cmpPos = CodeMirror.cmpPos;
+
+  function isArray(val) { return Object.prototype.toString.call(val) == "[object Array]" }
+
+  function getKeywords(editor) {
+    var mode = editor.doc.modeOption;
+    if (mode === "sql") mode = "text/x-sql";
+    return CodeMirror.resolveMode(mode).keywords;
+  }
+
+  function getIdentifierQuote(editor) {
+    var mode = editor.doc.modeOption;
+    if (mode === "sql") mode = "text/x-sql";
+    return CodeMirror.resolveMode(mode).identifierQuote || "`";
+  }
+
+  function getText(item) {
+    return typeof item == "string" ? item : item.text;
+  }
+
+  function wrapTable(name, value) {
+    if (isArray(value)) value = {columns: value}
+    if (!value.text) value.text = name
+    return value
+  }
+
+  function parseTables(input) {
+    var result = {}
+    if (isArray(input)) {
+      for (var i = input.length - 1; i >= 0; i--) {
+        var item = input[i]
+        result[getText(item).toUpperCase()] = wrapTable(getText(item), item)
+      }
+    } else if (input) {
+      for (var name in input)
+        result[name.toUpperCase()] = wrapTable(name, input[name])
+    }
+    return result
+  }
+
+  function getTable(name) {
+    return tables[name.toUpperCase()]
+  }
+
+  function shallowClone(object) {
+    var result = {};
+    for (var key in object) if (object.hasOwnProperty(key))
+      result[key] = object[key];
+    return result;
+  }
+
+  function match(string, word) {
+    var len = string.length;
+    var sub = getText(word).substr(0, len);
+    return string.toUpperCase() === sub.toUpperCase();
+  }
+
+  function addMatches(result, search, wordlist, formatter) {
+    if (isArray(wordlist)) {
+      for (var i = 0; i < wordlist.length; i++)
+        if (match(search, wordlist[i])) result.push(formatter(wordlist[i]))
+    } else {
+      for (var word in wordlist) if (wordlist.hasOwnProperty(word)) {
+        var val = wordlist[word]
+        if (!val || val === true)
+          val = word
+        else
+          val = val.displayText ? {text: val.text, displayText: val.displayText} : val.text
+        if (match(search, val)) result.push(formatter(val))
+      }
+    }
+  }
+
+  function cleanName(name) {
+    // Get rid name from identifierQuote and preceding dot(.)
+    if (name.charAt(0) == ".") {
+      name = name.substr(1);
+    }
+    // replace doublicated identifierQuotes with single identifierQuotes
+    // and remove single identifierQuotes
+    var nameParts = name.split(identifierQuote+identifierQuote);
+    for (var i = 0; i < nameParts.length; i++)
+      nameParts[i] = nameParts[i].replace(new RegExp(identifierQuote,"g"), "");
+    return nameParts.join(identifierQuote);
+  }
+
+  function insertIdentifierQuotes(name) {
+    var nameParts = getText(name).split(".");
+    for (var i = 0; i < nameParts.length; i++)
+      nameParts[i] = identifierQuote +
+        // doublicate identifierQuotes
+        nameParts[i].replace(new RegExp(identifierQuote,"g"), identifierQuote+identifierQuote) +
+        identifierQuote;
+    var escaped = nameParts.join(".");
+    if (typeof name == "string") return escaped;
+    name = shallowClone(name);
+    name.text = escaped;
+    return name;
+  }
+
+  function nameCompletion(cur, token, result, editor) {
+    // Try to complete table, column names and return start position of completion
+    var useIdentifierQuotes = false;
+    var nameParts = [];
+    var start = token.start;
+    var cont = true;
+    while (cont) {
+      cont = (token.string.charAt(0) == ".");
+      useIdentifierQuotes = useIdentifierQuotes || (token.string.charAt(0) == identifierQuote);
+
+      start = token.start;
+      nameParts.unshift(cleanName(token.string));
+
+      token = editor.getTokenAt(Pos(cur.line, token.start));
+      if (token.string == ".") {
+        cont = true;
+        token = editor.getTokenAt(Pos(cur.line, token.start));
+      }
+    }
+
+    // Try to complete table names
+    var string = nameParts.join(".");
+    addMatches(result, string, tables, function(w) {
+      return useIdentifierQuotes ? insertIdentifierQuotes(w) : w;
+    });
+
+    // Try to complete columns from defaultTable
+    addMatches(result, string, defaultTable, function(w) {
+      return useIdentifierQuotes ? insertIdentifierQuotes(w) : w;
+    });
+
+    // Try to complete columns
+    string = nameParts.pop();
+    var table = nameParts.join(".");
+
+    var alias = false;
+    var aliasTable = table;
+    // Check if table is available. If not, find table by Alias
+    if (!getTable(table)) {
+      var oldTable = table;
+      table = findTableByAlias(table, editor);
+      if (table !== oldTable) alias = true;
+    }
+
+    var columns = getTable(table);
+    if (columns && columns.columns)
+      columns = columns.columns;
+
+    if (columns) {
+      addMatches(result, string, columns, function(w) {
+        var tableInsert = table;
+        if (alias == true) tableInsert = aliasTable;
+        if (typeof w == "string") {
+          w = tableInsert + "." + w;
+        } else {
+          w = shallowClone(w);
+          w.text = tableInsert + "." + w.text;
+        }
+        return useIdentifierQuotes ? insertIdentifierQuotes(w) : w;
+      });
+    }
+
+    return start;
+  }
+
+  function eachWord(lineText, f) {
+    var words = lineText.split(/\s+/)
+    for (var i = 0; i < words.length; i++)
+      if (words[i]) f(words[i].replace(/[,;]/g, ''))
+  }
+
+  function findTableByAlias(alias, editor) {
+    var doc = editor.doc;
+    var fullQuery = doc.getValue();
+    var aliasUpperCase = alias.toUpperCase();
+    var previousWord = "";
+    var table = "";
+    var separator = [];
+    var validRange = {
+      start: Pos(0, 0),
+      end: Pos(editor.lastLine(), editor.getLineHandle(editor.lastLine()).length)
+    };
+
+    //add separator
+    var indexOfSeparator = fullQuery.indexOf(CONS.QUERY_DIV);
+    while(indexOfSeparator != -1) {
+      separator.push(doc.posFromIndex(indexOfSeparator));
+      indexOfSeparator = fullQuery.indexOf(CONS.QUERY_DIV, indexOfSeparator+1);
+    }
+    separator.unshift(Pos(0, 0));
+    separator.push(Pos(editor.lastLine(), editor.getLineHandle(editor.lastLine()).text.length));
+
+    //find valid range
+    var prevItem = null;
+    var current = editor.getCursor()
+    for (var i = 0; i < separator.length; i++) {
+      if ((prevItem == null || cmpPos(current, prevItem) > 0) && cmpPos(current, separator[i]) <= 0) {
+        validRange = {start: prevItem, end: separator[i]};
+        break;
+      }
+      prevItem = separator[i];
+    }
+
+    if (validRange.start) {
+      var query = doc.getRange(validRange.start, validRange.end, false);
+
+      for (var i = 0; i < query.length; i++) {
+        var lineText = query[i];
+        eachWord(lineText, function(word) {
+          var wordUpperCase = word.toUpperCase();
+          if (wordUpperCase === aliasUpperCase && getTable(previousWord))
+            table = previousWord;
+          if (wordUpperCase !== CONS.ALIAS_KEYWORD)
+            previousWord = word;
+        });
+        if (table) break;
+      }
+    }
+    return table;
+  }
+
+  CodeMirror.registerHelper("hint", "sql", function(editor, options) {
+    tables = parseTables(options && options.tables)
+    var defaultTableName = options && options.defaultTable;
+    var disableKeywords = options && options.disableKeywords;
+    defaultTable = defaultTableName && getTable(defaultTableName);
+    keywords = getKeywords(editor);
+    identifierQuote = getIdentifierQuote(editor);
+
+    if (defaultTableName && !defaultTable)
+      defaultTable = findTableByAlias(defaultTableName, editor);
+
+    defaultTable = defaultTable || [];
+
+    if (defaultTable.columns)
+      defaultTable = defaultTable.columns;
+
+    var cur = editor.getCursor();
+    var result = [];
+    var token = editor.getTokenAt(cur), start, end, search;
+    if (token.end > cur.ch) {
+      token.end = cur.ch;
+      token.string = token.string.slice(0, cur.ch - token.start);
+    }
+
+    if (token.string.match(/^[.`"'\w@][\w$#]*$/g)) {
+      search = token.string;
+      start = token.start;
+      end = token.end;
+    } else {
+      start = end = cur.ch;
+      search = "";
+    }
+    if (search.charAt(0) == "." || search.charAt(0) == identifierQuote) {
+      start = nameCompletion(cur, token, result, editor);
+    } else {
+      var objectOrClass = function(w, className) {
+        if (typeof w === "object") {
+          w.className = className;
+        } else {
+          w = { text: w, className: className };
+        }
+        return w;
+      };
+    addMatches(result, search, defaultTable, function(w) {
+        return objectOrClass(w, "CodeMirror-hint-table CodeMirror-hint-default-table");
+    });
+    addMatches(
+        result,
+        search,
+        tables, function(w) {
+          return objectOrClass(w, "CodeMirror-hint-table");
+        }
+    );
+    if (!disableKeywords)
+      addMatches(result, search, keywords, function(w) {
+          return objectOrClass(w.toUpperCase(), "CodeMirror-hint-keyword");
+      });
+  }
+
+    return {list: result, from: Pos(cur.line, start), to: Pos(cur.line, end)};
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/hint/xml-hint.js

@@ -0,0 +1,123 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var Pos = CodeMirror.Pos;
+
+  function matches(hint, typed, matchInMiddle) {
+    if (matchInMiddle) return hint.indexOf(typed) >= 0;
+    else return hint.lastIndexOf(typed, 0) == 0;
+  }
+
+  function getHints(cm, options) {
+    var tags = options && options.schemaInfo;
+    var quote = (options && options.quoteChar) || '"';
+    var matchInMiddle = options && options.matchInMiddle;
+    if (!tags) return;
+    var cur = cm.getCursor(), token = cm.getTokenAt(cur);
+    if (token.end > cur.ch) {
+      token.end = cur.ch;
+      token.string = token.string.slice(0, cur.ch - token.start);
+    }
+    var inner = CodeMirror.innerMode(cm.getMode(), token.state);
+    if (!inner.mode.xmlCurrentTag) return
+    var result = [], replaceToken = false, prefix;
+    var tag = /\btag\b/.test(token.type) && !/>$/.test(token.string);
+    var tagName = tag && /^\w/.test(token.string), tagStart;
+
+    if (tagName) {
+      var before = cm.getLine(cur.line).slice(Math.max(0, token.start - 2), token.start);
+      var tagType = /<\/$/.test(before) ? "close" : /<$/.test(before) ? "open" : null;
+      if (tagType) tagStart = token.start - (tagType == "close" ? 2 : 1);
+    } else if (tag && token.string == "<") {
+      tagType = "open";
+    } else if (tag && token.string == "</") {
+      tagType = "close";
+    }
+
+    var tagInfo = inner.mode.xmlCurrentTag(inner.state)
+    if (!tag && !tagInfo || tagType) {
+      if (tagName)
+        prefix = token.string;
+      replaceToken = tagType;
+      var context = inner.mode.xmlCurrentContext ? inner.mode.xmlCurrentContext(inner.state) : []
+      var inner = context.length && context[context.length - 1]
+      var curTag = inner && tags[inner]
+      var childList = inner ? curTag && curTag.children : tags["!top"];
+      if (childList && tagType != "close") {
+        for (var i = 0; i < childList.length; ++i) if (!prefix || matches(childList[i], prefix, matchInMiddle))
+          result.push("<" + childList[i]);
+      } else if (tagType != "close") {
+        for (var name in tags)
+          if (tags.hasOwnProperty(name) && name != "!top" && name != "!attrs" && (!prefix || matches(name, prefix, matchInMiddle)))
+            result.push("<" + name);
+      }
+      if (inner && (!prefix || tagType == "close" && matches(inner, prefix, matchInMiddle)))
+        result.push("</" + inner + ">");
+    } else {
+      // Attribute completion
+      var curTag = tagInfo && tags[tagInfo.name], attrs = curTag && curTag.attrs;
+      var globalAttrs = tags["!attrs"];
+      if (!attrs && !globalAttrs) return;
+      if (!attrs) {
+        attrs = globalAttrs;
+      } else if (globalAttrs) { // Combine tag-local and global attributes
+        var set = {};
+        for (var nm in globalAttrs) if (globalAttrs.hasOwnProperty(nm)) set[nm] = globalAttrs[nm];
+        for (var nm in attrs) if (attrs.hasOwnProperty(nm)) set[nm] = attrs[nm];
+        attrs = set;
+      }
+      if (token.type == "string" || token.string == "=") { // A value
+        var before = cm.getRange(Pos(cur.line, Math.max(0, cur.ch - 60)),
+                                 Pos(cur.line, token.type == "string" ? token.start : token.end));
+        var atName = before.match(/([^\s\u00a0=<>\"\']+)=$/), atValues;
+        if (!atName || !attrs.hasOwnProperty(atName[1]) || !(atValues = attrs[atName[1]])) return;
+        if (typeof atValues == 'function') atValues = atValues.call(this, cm); // Functions can be used to supply values for autocomplete widget
+        if (token.type == "string") {
+          prefix = token.string;
+          var n = 0;
+          if (/['"]/.test(token.string.charAt(0))) {
+            quote = token.string.charAt(0);
+            prefix = token.string.slice(1);
+            n++;
+          }
+          var len = token.string.length;
+          if (/['"]/.test(token.string.charAt(len - 1))) {
+            quote = token.string.charAt(len - 1);
+            prefix = token.string.substr(n, len - 2);
+          }
+          if (n) { // an opening quote
+            var line = cm.getLine(cur.line);
+            if (line.length > token.end && line.charAt(token.end) == quote) token.end++; // include a closing quote
+          }
+          replaceToken = true;
+        }
+        for (var i = 0; i < atValues.length; ++i) if (!prefix || matches(atValues[i], prefix, matchInMiddle))
+          result.push(quote + atValues[i] + quote);
+      } else { // An attribute name
+        if (token.type == "attribute") {
+          prefix = token.string;
+          replaceToken = true;
+        }
+        for (var attr in attrs) if (attrs.hasOwnProperty(attr) && (!prefix || matches(attr, prefix, matchInMiddle)))
+          result.push(attr);
+      }
+    }
+    return {
+      list: result,
+      from: replaceToken ? Pos(cur.line, tagStart == null ? token.start : tagStart) : cur,
+      to: replaceToken ? Pos(cur.line, token.end) : cur
+    };
+  }
+
+  CodeMirror.registerHelper("hint", "xml", getHints);
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/lint/coffeescript-lint.js

@@ -0,0 +1,47 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Depends on coffeelint.js from http://www.coffeelint.org/js/coffeelint.js
+
+// declare global: coffeelint
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.registerHelper("lint", "coffeescript", function(text) {
+  var found = [];
+  if (!window.coffeelint) {
+    if (window.console) {
+      window.console.error("Error: window.coffeelint not defined, CodeMirror CoffeeScript linting cannot run.");
+    }
+    return found;
+  }
+  var parseError = function(err) {
+    var loc = err.lineNumber;
+    found.push({from: CodeMirror.Pos(loc-1, 0),
+                to: CodeMirror.Pos(loc, 0),
+                severity: err.level,
+                message: err.message});
+  };
+  try {
+    var res = coffeelint.lint(text);
+    for(var i = 0; i < res.length; i++) {
+      parseError(res[i]);
+    }
+  } catch(e) {
+    found.push({from: CodeMirror.Pos(e.location.first_line, 0),
+                to: CodeMirror.Pos(e.location.last_line, e.location.last_column),
+                severity: 'error',
+                message: e.message});
+  }
+  return found;
+});
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/lint/css-lint.js

@@ -0,0 +1,40 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Depends on csslint.js from https://github.com/stubbornella/csslint
+
+// declare global: CSSLint
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.registerHelper("lint", "css", function(text, options) {
+  var found = [];
+  if (!window.CSSLint) {
+    if (window.console) {
+        window.console.error("Error: window.CSSLint not defined, CodeMirror CSS linting cannot run.");
+    }
+    return found;
+  }
+  var results = CSSLint.verify(text, options), messages = results.messages, message = null;
+  for ( var i = 0; i < messages.length; i++) {
+    message = messages[i];
+    var startLine = message.line -1, endLine = message.line -1, startCol = message.col -1, endCol = message.col;
+    found.push({
+      from: CodeMirror.Pos(startLine, startCol),
+      to: CodeMirror.Pos(endLine, endCol),
+      message: message.message,
+      severity : message.type
+    });
+  }
+  return found;
+});
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/lint/html-lint.js

@@ -0,0 +1,59 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Depends on htmlhint.js from http://htmlhint.com/js/htmlhint.js
+
+// declare global: HTMLHint
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("htmlhint"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "htmlhint"], mod);
+  else // Plain browser env
+    mod(CodeMirror, window.HTMLHint);
+})(function(CodeMirror, HTMLHint) {
+  "use strict";
+
+  var defaultRules = {
+    "tagname-lowercase": true,
+    "attr-lowercase": true,
+    "attr-value-double-quotes": true,
+    "doctype-first": false,
+    "tag-pair": true,
+    "spec-char-escape": true,
+    "id-unique": true,
+    "src-not-empty": true,
+    "attr-no-duplication": true
+  };
+
+  CodeMirror.registerHelper("lint", "html", function(text, options) {
+    var found = [];
+    if (HTMLHint && !HTMLHint.verify) {
+      if(typeof HTMLHint.default !== 'undefined') {
+        HTMLHint = HTMLHint.default;
+      } else {
+        HTMLHint = HTMLHint.HTMLHint;
+      }
+    }
+    if (!HTMLHint) HTMLHint = window.HTMLHint;
+    if (!HTMLHint) {
+      if (window.console) {
+          window.console.error("Error: HTMLHint not found, not defined on window, or not available through define/require, CodeMirror HTML linting cannot run.");
+      }
+      return found;
+    }
+    var messages = HTMLHint.verify(text, options && options.rules || defaultRules);
+    for (var i = 0; i < messages.length; i++) {
+      var message = messages[i];
+      var startLine = message.line - 1, endLine = message.line - 1, startCol = message.col - 1, endCol = message.col;
+      found.push({
+        from: CodeMirror.Pos(startLine, startCol),
+        to: CodeMirror.Pos(endLine, endCol),
+        message: message.message,
+        severity : message.type
+      });
+    }
+    return found;
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/lint/javascript-lint.js

@@ -0,0 +1,63 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+  // declare global: JSHINT
+
+  function validator(text, options) {
+    if (!window.JSHINT) {
+      if (window.console) {
+        window.console.error("Error: window.JSHINT not defined, CodeMirror JavaScript linting cannot run.");
+      }
+      return [];
+    }
+    if (!options.indent) // JSHint error.character actually is a column index, this fixes underlining on lines using tabs for indentation
+      options.indent = 1; // JSHint default value is 4
+    JSHINT(text, options, options.globals);
+    var errors = JSHINT.data().errors, result = [];
+    if (errors) parseErrors(errors, result);
+    return result;
+  }
+
+  CodeMirror.registerHelper("lint", "javascript", validator);
+
+  function parseErrors(errors, output) {
+    for ( var i = 0; i < errors.length; i++) {
+      var error = errors[i];
+      if (error) {
+        if (error.line <= 0) {
+          if (window.console) {
+            window.console.warn("Cannot display JSHint error (invalid line " + error.line + ")", error);
+          }
+          continue;
+        }
+
+        var start = error.character - 1, end = start + 1;
+        if (error.evidence) {
+          var index = error.evidence.substring(start).search(/.\b/);
+          if (index > -1) {
+            end += index;
+          }
+        }
+
+        // Convert to format expected by validation service
+        var hint = {
+          message: error.reason,
+          severity: error.code ? (error.code.startsWith('W') ? "warning" : "error") : "error",
+          from: CodeMirror.Pos(error.line - 1, start),
+          to: CodeMirror.Pos(error.line - 1, end)
+        };
+
+        output.push(hint);
+      }
+    }
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/lint/json-lint.js

@@ -0,0 +1,40 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Depends on jsonlint.js from https://github.com/zaach/jsonlint
+
+// declare global: jsonlint
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.registerHelper("lint", "json", function(text) {
+  var found = [];
+  if (!window.jsonlint) {
+    if (window.console) {
+      window.console.error("Error: window.jsonlint not defined, CodeMirror JSON linting cannot run.");
+    }
+    return found;
+  }
+  // for jsonlint's web dist jsonlint is exported as an object with a single property parser, of which parseError
+  // is a subproperty
+  var jsonlint = window.jsonlint.parser || window.jsonlint
+  jsonlint.parseError = function(str, hash) {
+    var loc = hash.loc;
+    found.push({from: CodeMirror.Pos(loc.first_line - 1, loc.first_column),
+                to: CodeMirror.Pos(loc.last_line - 1, loc.last_column),
+                message: str});
+  };
+  try { jsonlint.parse(text); }
+  catch(e) {}
+  return found;
+});
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/lint/lint.css

@@ -0,0 +1,73 @@
+/* The lint marker gutter */
+.CodeMirror-lint-markers {
+  width: 16px;
+}
+
+.CodeMirror-lint-tooltip {
+  background-color: #ffd;
+  border: 1px solid black;
+  border-radius: 4px 4px 4px 4px;
+  color: black;
+  font-family: monospace;
+  font-size: 10pt;
+  overflow: hidden;
+  padding: 2px 5px;
+  position: fixed;
+  white-space: pre;
+  white-space: pre-wrap;
+  z-index: 100;
+  max-width: 600px;
+  opacity: 0;
+  transition: opacity .4s;
+  -moz-transition: opacity .4s;
+  -webkit-transition: opacity .4s;
+  -o-transition: opacity .4s;
+  -ms-transition: opacity .4s;
+}
+
+.CodeMirror-lint-mark-error, .CodeMirror-lint-mark-warning {
+  background-position: left bottom;
+  background-repeat: repeat-x;
+}
+
+.CodeMirror-lint-mark-error {
+  background-image:
+  url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAADCAYAAAC09K7GAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A/wD/oL2nkwAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9sJDw4cOCW1/KIAAAAZdEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIEdJTVBXgQ4XAAAAHElEQVQI12NggIL/DAz/GdA5/xkY/qPKMDAwAADLZwf5rvm+LQAAAABJRU5ErkJggg==")
+  ;
+}
+
+.CodeMirror-lint-mark-warning {
+  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAADCAYAAAC09K7GAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A/wD/oL2nkwAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9sJFhQXEbhTg7YAAAAZdEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIEdJTVBXgQ4XAAAAMklEQVQI12NkgIIvJ3QXMjAwdDN+OaEbysDA4MPAwNDNwMCwiOHLCd1zX07o6kBVGQEAKBANtobskNMAAAAASUVORK5CYII=");
+}
+
+.CodeMirror-lint-marker-error, .CodeMirror-lint-marker-warning {
+  background-position: center center;
+  background-repeat: no-repeat;
+  cursor: pointer;
+  display: inline-block;
+  height: 16px;
+  width: 16px;
+  vertical-align: middle;
+  position: relative;
+}
+
+.CodeMirror-lint-message-error, .CodeMirror-lint-message-warning {
+  padding-left: 18px;
+  background-position: top left;
+  background-repeat: no-repeat;
+}
+
+.CodeMirror-lint-marker-error, .CodeMirror-lint-message-error {
+  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAMAAAAoLQ9TAAAAHlBMVEW7AAC7AACxAAC7AAC7AAAAAAC4AAC5AAD///+7AAAUdclpAAAABnRSTlMXnORSiwCK0ZKSAAAATUlEQVR42mWPOQ7AQAgDuQLx/z8csYRmPRIFIwRGnosRrpamvkKi0FTIiMASR3hhKW+hAN6/tIWhu9PDWiTGNEkTtIOucA5Oyr9ckPgAWm0GPBog6v4AAAAASUVORK5CYII=");
+}
+
+.CodeMirror-lint-marker-warning, .CodeMirror-lint-message-warning {
+  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAMAAAAoLQ9TAAAANlBMVEX/uwDvrwD/uwD/uwD/uwD/uwD/uwD/uwD/uwD6twD/uwAAAADurwD2tQD7uAD+ugAAAAD/uwDhmeTRAAAADHRSTlMJ8mN1EYcbmiixgACm7WbuAAAAVklEQVR42n3PUQqAIBBFUU1LLc3u/jdbOJoW1P08DA9Gba8+YWJ6gNJoNYIBzAA2chBth5kLmG9YUoG0NHAUwFXwO9LuBQL1giCQb8gC9Oro2vp5rncCIY8L8uEx5ZkAAAAASUVORK5CYII=");
+}
+
+.CodeMirror-lint-marker-multiple {
+  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAcAAAAHCAMAAADzjKfhAAAACVBMVEUAAAAAAAC/v7914kyHAAAAAXRSTlMAQObYZgAAACNJREFUeNo1ioEJAAAIwmz/H90iFFSGJgFMe3gaLZ0od+9/AQZ0ADosbYraAAAAAElFTkSuQmCC");
+  background-repeat: no-repeat;
+  background-position: right bottom;
+  width: 100%; height: 100%;
+}

venv/Lib/site-packages/notebook/static/components/codemirror/addon/lint/lint.js

@@ -0,0 +1,255 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+  var GUTTER_ID = "CodeMirror-lint-markers";
+
+  function showTooltip(cm, e, content) {
+    var tt = document.createElement("div");
+    tt.className = "CodeMirror-lint-tooltip cm-s-" + cm.options.theme;
+    tt.appendChild(content.cloneNode(true));
+    if (cm.state.lint.options.selfContain)
+      cm.getWrapperElement().appendChild(tt);
+    else
+      document.body.appendChild(tt);
+
+    function position(e) {
+      if (!tt.parentNode) return CodeMirror.off(document, "mousemove", position);
+      tt.style.top = Math.max(0, e.clientY - tt.offsetHeight - 5) + "px";
+      tt.style.left = (e.clientX + 5) + "px";
+    }
+    CodeMirror.on(document, "mousemove", position);
+    position(e);
+    if (tt.style.opacity != null) tt.style.opacity = 1;
+    return tt;
+  }
+  function rm(elt) {
+    if (elt.parentNode) elt.parentNode.removeChild(elt);
+  }
+  function hideTooltip(tt) {
+    if (!tt.parentNode) return;
+    if (tt.style.opacity == null) rm(tt);
+    tt.style.opacity = 0;
+    setTimeout(function() { rm(tt); }, 600);
+  }
+
+  function showTooltipFor(cm, e, content, node) {
+    var tooltip = showTooltip(cm, e, content);
+    function hide() {
+      CodeMirror.off(node, "mouseout", hide);
+      if (tooltip) { hideTooltip(tooltip); tooltip = null; }
+    }
+    var poll = setInterval(function() {
+      if (tooltip) for (var n = node;; n = n.parentNode) {
+        if (n && n.nodeType == 11) n = n.host;
+        if (n == document.body) return;
+        if (!n) { hide(); break; }
+      }
+      if (!tooltip) return clearInterval(poll);
+    }, 400);
+    CodeMirror.on(node, "mouseout", hide);
+  }
+
+  function LintState(cm, options, hasGutter) {
+    this.marked = [];
+    this.options = options;
+    this.timeout = null;
+    this.hasGutter = hasGutter;
+    this.onMouseOver = function(e) { onMouseOver(cm, e); };
+    this.waitingFor = 0
+  }
+
+  function parseOptions(_cm, options) {
+    if (options instanceof Function) return {getAnnotations: options};
+    if (!options || options === true) options = {};
+    return options;
+  }
+
+  function clearMarks(cm) {
+    var state = cm.state.lint;
+    if (state.hasGutter) cm.clearGutter(GUTTER_ID);
+    for (var i = 0; i < state.marked.length; ++i)
+      state.marked[i].clear();
+    state.marked.length = 0;
+  }
+
+  function makeMarker(cm, labels, severity, multiple, tooltips) {
+    var marker = document.createElement("div"), inner = marker;
+    marker.className = "CodeMirror-lint-marker-" + severity;
+    if (multiple) {
+      inner = marker.appendChild(document.createElement("div"));
+      inner.className = "CodeMirror-lint-marker-multiple";
+    }
+
+    if (tooltips != false) CodeMirror.on(inner, "mouseover", function(e) {
+      showTooltipFor(cm, e, labels, inner);
+    });
+
+    return marker;
+  }
+
+  function getMaxSeverity(a, b) {
+    if (a == "error") return a;
+    else return b;
+  }
+
+  function groupByLine(annotations) {
+    var lines = [];
+    for (var i = 0; i < annotations.length; ++i) {
+      var ann = annotations[i], line = ann.from.line;
+      (lines[line] || (lines[line] = [])).push(ann);
+    }
+    return lines;
+  }
+
+  function annotationTooltip(ann) {
+    var severity = ann.severity;
+    if (!severity) severity = "error";
+    var tip = document.createElement("div");
+    tip.className = "CodeMirror-lint-message-" + severity;
+    if (typeof ann.messageHTML != 'undefined') {
+      tip.innerHTML = ann.messageHTML;
+    } else {
+      tip.appendChild(document.createTextNode(ann.message));
+    }
+    return tip;
+  }
+
+  function lintAsync(cm, getAnnotations, passOptions) {
+    var state = cm.state.lint
+    var id = ++state.waitingFor
+    function abort() {
+      id = -1
+      cm.off("change", abort)
+    }
+    cm.on("change", abort)
+    getAnnotations(cm.getValue(), function(annotations, arg2) {
+      cm.off("change", abort)
+      if (state.waitingFor != id) return
+      if (arg2 && annotations instanceof CodeMirror) annotations = arg2
+      cm.operation(function() {updateLinting(cm, annotations)})
+    }, passOptions, cm);
+  }
+
+  function startLinting(cm) {
+    var state = cm.state.lint, options = state.options;
+    /*
+     * Passing rules in `options` property prevents JSHint (and other linters) from complaining
+     * about unrecognized rules like `onUpdateLinting`, `delay`, `lintOnChange`, etc.
+     */
+    var passOptions = options.options || options;
+    var getAnnotations = options.getAnnotations || cm.getHelper(CodeMirror.Pos(0, 0), "lint");
+    if (!getAnnotations) return;
+    if (options.async || getAnnotations.async) {
+      lintAsync(cm, getAnnotations, passOptions)
+    } else {
+      var annotations = getAnnotations(cm.getValue(), passOptions, cm);
+      if (!annotations) return;
+      if (annotations.then) annotations.then(function(issues) {
+        cm.operation(function() {updateLinting(cm, issues)})
+      });
+      else cm.operation(function() {updateLinting(cm, annotations)})
+    }
+  }
+
+  function updateLinting(cm, annotationsNotSorted) {
+    clearMarks(cm);
+    var state = cm.state.lint, options = state.options;
+
+    var annotations = groupByLine(annotationsNotSorted);
+
+    for (var line = 0; line < annotations.length; ++line) {
+      var anns = annotations[line];
+      if (!anns) continue;
+
+      var maxSeverity = null;
+      var tipLabel = state.hasGutter && document.createDocumentFragment();
+
+      for (var i = 0; i < anns.length; ++i) {
+        var ann = anns[i];
+        var severity = ann.severity;
+        if (!severity) severity = "error";
+        maxSeverity = getMaxSeverity(maxSeverity, severity);
+
+        if (options.formatAnnotation) ann = options.formatAnnotation(ann);
+        if (state.hasGutter) tipLabel.appendChild(annotationTooltip(ann));
+
+        if (ann.to) state.marked.push(cm.markText(ann.from, ann.to, {
+          className: "CodeMirror-lint-mark-" + severity,
+          __annotation: ann
+        }));
+      }
+
+      if (state.hasGutter)
+        cm.setGutterMarker(line, GUTTER_ID, makeMarker(cm, tipLabel, maxSeverity, anns.length > 1,
+                                                       state.options.tooltips));
+    }
+    if (options.onUpdateLinting) options.onUpdateLinting(annotationsNotSorted, annotations, cm);
+  }
+
+  function onChange(cm) {
+    var state = cm.state.lint;
+    if (!state) return;
+    clearTimeout(state.timeout);
+    state.timeout = setTimeout(function(){startLinting(cm);}, state.options.delay || 500);
+  }
+
+  function popupTooltips(cm, annotations, e) {
+    var target = e.target || e.srcElement;
+    var tooltip = document.createDocumentFragment();
+    for (var i = 0; i < annotations.length; i++) {
+      var ann = annotations[i];
+      tooltip.appendChild(annotationTooltip(ann));
+    }
+    showTooltipFor(cm, e, tooltip, target);
+  }
+
+  function onMouseOver(cm, e) {
+    var target = e.target || e.srcElement;
+    if (!/\bCodeMirror-lint-mark-/.test(target.className)) return;
+    var box = target.getBoundingClientRect(), x = (box.left + box.right) / 2, y = (box.top + box.bottom) / 2;
+    var spans = cm.findMarksAt(cm.coordsChar({left: x, top: y}, "client"));
+
+    var annotations = [];
+    for (var i = 0; i < spans.length; ++i) {
+      var ann = spans[i].__annotation;
+      if (ann) annotations.push(ann);
+    }
+    if (annotations.length) popupTooltips(cm, annotations, e);
+  }
+
+  CodeMirror.defineOption("lint", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      clearMarks(cm);
+      if (cm.state.lint.options.lintOnChange !== false)
+        cm.off("change", onChange);
+      CodeMirror.off(cm.getWrapperElement(), "mouseover", cm.state.lint.onMouseOver);
+      clearTimeout(cm.state.lint.timeout);
+      delete cm.state.lint;
+    }
+
+    if (val) {
+      var gutters = cm.getOption("gutters"), hasLintGutter = false;
+      for (var i = 0; i < gutters.length; ++i) if (gutters[i] == GUTTER_ID) hasLintGutter = true;
+      var state = cm.state.lint = new LintState(cm, parseOptions(cm, val), hasLintGutter);
+      if (state.options.lintOnChange !== false)
+        cm.on("change", onChange);
+      if (state.options.tooltips != false && state.options.tooltips != "gutter")
+        CodeMirror.on(cm.getWrapperElement(), "mouseover", state.onMouseOver);
+
+      startLinting(cm);
+    }
+  });
+
+  CodeMirror.defineExtension("performLint", function() {
+    if (this.state.lint) startLinting(this);
+  });
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/lint/yaml-lint.js

@@ -0,0 +1,41 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+// Depends on js-yaml.js from https://github.com/nodeca/js-yaml
+
+// declare global: jsyaml
+
+CodeMirror.registerHelper("lint", "yaml", function(text) {
+  var found = [];
+  if (!window.jsyaml) {
+    if (window.console) {
+      window.console.error("Error: window.jsyaml not defined, CodeMirror YAML linting cannot run.");
+    }
+    return found;
+  }
+  try { jsyaml.loadAll(text); }
+  catch(e) {
+      var loc = e.mark,
+          // js-yaml YAMLException doesn't always provide an accurate lineno
+          // e.g., when there are multiple yaml docs
+          // ---
+          // ---
+          // foo:bar
+          from = loc ? CodeMirror.Pos(loc.line, loc.column) : CodeMirror.Pos(0, 0),
+          to = from;
+      found.push({ from: from, to: to, message: e.message });
+  }
+  return found;
+});
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/merge/merge.css

@@ -0,0 +1,119 @@
+.CodeMirror-merge {
+  position: relative;
+  border: 1px solid #ddd;
+  white-space: pre;
+}
+
+.CodeMirror-merge, .CodeMirror-merge .CodeMirror {
+  height: 350px;
+}
+
+.CodeMirror-merge-2pane .CodeMirror-merge-pane { width: 47%; }
+.CodeMirror-merge-2pane .CodeMirror-merge-gap { width: 6%; }
+.CodeMirror-merge-3pane .CodeMirror-merge-pane { width: 31%; }
+.CodeMirror-merge-3pane .CodeMirror-merge-gap { width: 3.5%; }
+
+.CodeMirror-merge-pane {
+  display: inline-block;
+  white-space: normal;
+  vertical-align: top;
+}
+.CodeMirror-merge-pane-rightmost {
+  position: absolute;
+  right: 0px;
+  z-index: 1;
+}
+
+.CodeMirror-merge-gap {
+  z-index: 2;
+  display: inline-block;
+  height: 100%;
+  -moz-box-sizing: border-box;
+  box-sizing: border-box;
+  overflow: hidden;
+  border-left: 1px solid #ddd;
+  border-right: 1px solid #ddd;
+  position: relative;
+  background: #f8f8f8;
+}
+
+.CodeMirror-merge-scrolllock-wrap {
+  position: absolute;
+  bottom: 0; left: 50%;
+}
+.CodeMirror-merge-scrolllock {
+  position: relative;
+  left: -50%;
+  cursor: pointer;
+  color: #555;
+  line-height: 1;
+}
+.CodeMirror-merge-scrolllock:after {
+  content: "\21db\00a0\00a0\21da";
+}
+.CodeMirror-merge-scrolllock.CodeMirror-merge-scrolllock-enabled:after {
+  content: "\21db\21da";
+}
+
+.CodeMirror-merge-copybuttons-left, .CodeMirror-merge-copybuttons-right {
+  position: absolute;
+  left: 0; top: 0;
+  right: 0; bottom: 0;
+  line-height: 1;
+}
+
+.CodeMirror-merge-copy {
+  position: absolute;
+  cursor: pointer;
+  color: #44c;
+  z-index: 3;
+}
+
+.CodeMirror-merge-copy-reverse {
+  position: absolute;
+  cursor: pointer;
+  color: #44c;
+}
+
+.CodeMirror-merge-copybuttons-left .CodeMirror-merge-copy { left: 2px; }
+.CodeMirror-merge-copybuttons-right .CodeMirror-merge-copy { right: 2px; }
+
+.CodeMirror-merge-r-inserted, .CodeMirror-merge-l-inserted {
+  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAACCAYAAACddGYaAAAAGUlEQVQI12MwuCXy3+CWyH8GBgYGJgYkAABZbAQ9ELXurwAAAABJRU5ErkJggg==);
+  background-position: bottom left;
+  background-repeat: repeat-x;
+}
+
+.CodeMirror-merge-r-deleted, .CodeMirror-merge-l-deleted {
+  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAACCAYAAACddGYaAAAAGUlEQVQI12M4Kyb2/6yY2H8GBgYGJgYkAABURgPz6Ks7wQAAAABJRU5ErkJggg==);
+  background-position: bottom left;
+  background-repeat: repeat-x;
+}
+
+.CodeMirror-merge-r-chunk { background: #ffffe0; }
+.CodeMirror-merge-r-chunk-start { border-top: 1px solid #ee8; }
+.CodeMirror-merge-r-chunk-end { border-bottom: 1px solid #ee8; }
+.CodeMirror-merge-r-connect { fill: #ffffe0; stroke: #ee8; stroke-width: 1px; }
+
+.CodeMirror-merge-l-chunk { background: #eef; }
+.CodeMirror-merge-l-chunk-start { border-top: 1px solid #88e; }
+.CodeMirror-merge-l-chunk-end { border-bottom: 1px solid #88e; }
+.CodeMirror-merge-l-connect { fill: #eef; stroke: #88e; stroke-width: 1px; }
+
+.CodeMirror-merge-l-chunk.CodeMirror-merge-r-chunk { background: #dfd; }
+.CodeMirror-merge-l-chunk-start.CodeMirror-merge-r-chunk-start { border-top: 1px solid #4e4; }
+.CodeMirror-merge-l-chunk-end.CodeMirror-merge-r-chunk-end { border-bottom: 1px solid #4e4; }
+
+.CodeMirror-merge-collapsed-widget:before {
+  content: "(...)";
+}
+.CodeMirror-merge-collapsed-widget {
+  cursor: pointer;
+  color: #88b;
+  background: #eef;
+  border: 1px solid #ddf;
+  font-size: 90%;
+  padding: 0 3px;
+  border-radius: 4px;
+}
+.CodeMirror-merge-collapsed-line .CodeMirror-gutter-elt { display: none; }

venv/Lib/site-packages/notebook/static/components/codemirror/addon/mode/loadmode.js

@@ -0,0 +1,66 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), "cjs");
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], function(CM) { mod(CM, "amd"); });
+  else // Plain browser env
+    mod(CodeMirror, "plain");
+})(function(CodeMirror, env) {
+  if (!CodeMirror.modeURL) CodeMirror.modeURL = "../mode/%N/%N.js";
+
+  var loading = {};
+  function splitCallback(cont, n) {
+    var countDown = n;
+    return function() { if (--countDown == 0) cont(); };
+  }
+  function ensureDeps(mode, cont, options) {
+    var modeObj = CodeMirror.modes[mode], deps = modeObj && modeObj.dependencies;
+    if (!deps) return cont();
+    var missing = [];
+    for (var i = 0; i < deps.length; ++i) {
+      if (!CodeMirror.modes.hasOwnProperty(deps[i]))
+        missing.push(deps[i]);
+    }
+    if (!missing.length) return cont();
+    var split = splitCallback(cont, missing.length);
+    for (var i = 0; i < missing.length; ++i)
+      CodeMirror.requireMode(missing[i], split, options);
+  }
+
+  CodeMirror.requireMode = function(mode, cont, options) {
+    if (typeof mode != "string") mode = mode.name;
+    if (CodeMirror.modes.hasOwnProperty(mode)) return ensureDeps(mode, cont, options);
+    if (loading.hasOwnProperty(mode)) return loading[mode].push(cont);
+
+    var file = options && options.path ? options.path(mode) : CodeMirror.modeURL.replace(/%N/g, mode);
+    if (options && options.loadMode) {
+      options.loadMode(file, function() { ensureDeps(mode, cont, options) })
+    } else if (env == "plain") {
+      var script = document.createElement("script");
+      script.src = file;
+      var others = document.getElementsByTagName("script")[0];
+      var list = loading[mode] = [cont];
+      CodeMirror.on(script, "load", function() {
+        ensureDeps(mode, function() {
+          for (var i = 0; i < list.length; ++i) list[i]();
+        }, options);
+      });
+      others.parentNode.insertBefore(script, others);
+    } else if (env == "cjs") {
+      require(file);
+      cont();
+    } else if (env == "amd") {
+      requirejs([file], cont);
+    }
+  };
+
+  CodeMirror.autoLoadMode = function(instance, mode, options) {
+    if (!CodeMirror.modes.hasOwnProperty(mode))
+      CodeMirror.requireMode(mode, function() {
+        instance.setOption("mode", instance.getOption("mode"));
+      }, options);
+  };
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/mode/multiplex.js

@@ -0,0 +1,131 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.multiplexingMode = function(outer /*, others */) {
+  // Others should be {open, close, mode [, delimStyle] [, innerStyle]} objects
+  var others = Array.prototype.slice.call(arguments, 1);
+
+  function indexOf(string, pattern, from, returnEnd) {
+    if (typeof pattern == "string") {
+      var found = string.indexOf(pattern, from);
+      return returnEnd && found > -1 ? found + pattern.length : found;
+    }
+    var m = pattern.exec(from ? string.slice(from) : string);
+    return m ? m.index + from + (returnEnd ? m[0].length : 0) : -1;
+  }
+
+  return {
+    startState: function() {
+      return {
+        outer: CodeMirror.startState(outer),
+        innerActive: null,
+        inner: null
+      };
+    },
+
+    copyState: function(state) {
+      return {
+        outer: CodeMirror.copyState(outer, state.outer),
+        innerActive: state.innerActive,
+        inner: state.innerActive && CodeMirror.copyState(state.innerActive.mode, state.inner)
+      };
+    },
+
+    token: function(stream, state) {
+      if (!state.innerActive) {
+        var cutOff = Infinity, oldContent = stream.string;
+        for (var i = 0; i < others.length; ++i) {
+          var other = others[i];
+          var found = indexOf(oldContent, other.open, stream.pos);
+          if (found == stream.pos) {
+            if (!other.parseDelimiters) stream.match(other.open);
+            state.innerActive = other;
+
+            // Get the outer indent, making sure to handle CodeMirror.Pass
+            var outerIndent = 0;
+            if (outer.indent) {
+              var possibleOuterIndent = outer.indent(state.outer, "", "");
+              if (possibleOuterIndent !== CodeMirror.Pass) outerIndent = possibleOuterIndent;
+            }
+
+            state.inner = CodeMirror.startState(other.mode, outerIndent);
+            return other.delimStyle && (other.delimStyle + " " + other.delimStyle + "-open");
+          } else if (found != -1 && found < cutOff) {
+            cutOff = found;
+          }
+        }
+        if (cutOff != Infinity) stream.string = oldContent.slice(0, cutOff);
+        var outerToken = outer.token(stream, state.outer);
+        if (cutOff != Infinity) stream.string = oldContent;
+        return outerToken;
+      } else {
+        var curInner = state.innerActive, oldContent = stream.string;
+        if (!curInner.close && stream.sol()) {
+          state.innerActive = state.inner = null;
+          return this.token(stream, state);
+        }
+        var found = curInner.close ? indexOf(oldContent, curInner.close, stream.pos, curInner.parseDelimiters) : -1;
+        if (found == stream.pos && !curInner.parseDelimiters) {
+          stream.match(curInner.close);
+          state.innerActive = state.inner = null;
+          return curInner.delimStyle && (curInner.delimStyle + " " + curInner.delimStyle + "-close");
+        }
+        if (found > -1) stream.string = oldContent.slice(0, found);
+        var innerToken = curInner.mode.token(stream, state.inner);
+        if (found > -1) stream.string = oldContent;
+
+        if (found == stream.pos && curInner.parseDelimiters)
+          state.innerActive = state.inner = null;
+
+        if (curInner.innerStyle) {
+          if (innerToken) innerToken = innerToken + " " + curInner.innerStyle;
+          else innerToken = curInner.innerStyle;
+        }
+
+        return innerToken;
+      }
+    },
+
+    indent: function(state, textAfter, line) {
+      var mode = state.innerActive ? state.innerActive.mode : outer;
+      if (!mode.indent) return CodeMirror.Pass;
+      return mode.indent(state.innerActive ? state.inner : state.outer, textAfter, line);
+    },
+
+    blankLine: function(state) {
+      var mode = state.innerActive ? state.innerActive.mode : outer;
+      if (mode.blankLine) {
+        mode.blankLine(state.innerActive ? state.inner : state.outer);
+      }
+      if (!state.innerActive) {
+        for (var i = 0; i < others.length; ++i) {
+          var other = others[i];
+          if (other.open === "\n") {
+            state.innerActive = other;
+            state.inner = CodeMirror.startState(other.mode, mode.indent ? mode.indent(state.outer, "", "") : 0);
+          }
+        }
+      } else if (state.innerActive.close === "\n") {
+        state.innerActive = state.inner = null;
+      }
+    },
+
+    electricChars: outer.electricChars,
+
+    innerMode: function(state) {
+      return state.inner ? {state: state.inner, mode: state.innerActive.mode} : {state: state.outer, mode: outer};
+    }
+  };
+};
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/mode/multiplex_test.js

@@ -0,0 +1,33 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function() {
+  CodeMirror.defineMode("markdown_with_stex", function(){
+    var inner = CodeMirror.getMode({}, "stex");
+    var outer = CodeMirror.getMode({}, "markdown");
+
+    var innerOptions = {
+      open: '$',
+      close: '$',
+      mode: inner,
+      delimStyle: 'delim',
+      innerStyle: 'inner'
+    };
+
+    return CodeMirror.multiplexingMode(outer, innerOptions);
+  });
+
+  var mode = CodeMirror.getMode({}, "markdown_with_stex");
+
+  function MT(name) {
+    test.mode(
+      name,
+      mode,
+      Array.prototype.slice.call(arguments, 1),
+      'multiplexing');
+  }
+
+  MT(
+    "stexInsideMarkdown",
+    "[strong **Equation:**] [delim&delim-open $][inner&tag \\pi][delim&delim-close $]");
+})();

venv/Lib/site-packages/notebook/static/components/codemirror/addon/mode/overlay.js

@@ -0,0 +1,90 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Utility function that allows modes to be combined. The mode given
+// as the base argument takes care of most of the normal mode
+// functionality, but a second (typically simple) mode is used, which
+// can override the style of text. Both modes get to parse all of the
+// text, but when both assign a non-null style to a piece of code, the
+// overlay wins, unless the combine argument was true and not overridden,
+// or state.overlay.combineTokens was true, in which case the styles are
+// combined.
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.overlayMode = function(base, overlay, combine) {
+  return {
+    startState: function() {
+      return {
+        base: CodeMirror.startState(base),
+        overlay: CodeMirror.startState(overlay),
+        basePos: 0, baseCur: null,
+        overlayPos: 0, overlayCur: null,
+        streamSeen: null
+      };
+    },
+    copyState: function(state) {
+      return {
+        base: CodeMirror.copyState(base, state.base),
+        overlay: CodeMirror.copyState(overlay, state.overlay),
+        basePos: state.basePos, baseCur: null,
+        overlayPos: state.overlayPos, overlayCur: null
+      };
+    },
+
+    token: function(stream, state) {
+      if (stream != state.streamSeen ||
+          Math.min(state.basePos, state.overlayPos) < stream.start) {
+        state.streamSeen = stream;
+        state.basePos = state.overlayPos = stream.start;
+      }
+
+      if (stream.start == state.basePos) {
+        state.baseCur = base.token(stream, state.base);
+        state.basePos = stream.pos;
+      }
+      if (stream.start == state.overlayPos) {
+        stream.pos = stream.start;
+        state.overlayCur = overlay.token(stream, state.overlay);
+        state.overlayPos = stream.pos;
+      }
+      stream.pos = Math.min(state.basePos, state.overlayPos);
+
+      // state.overlay.combineTokens always takes precedence over combine,
+      // unless set to null
+      if (state.overlayCur == null) return state.baseCur;
+      else if (state.baseCur != null &&
+               state.overlay.combineTokens ||
+               combine && state.overlay.combineTokens == null)
+        return state.baseCur + " " + state.overlayCur;
+      else return state.overlayCur;
+    },
+
+    indent: base.indent && function(state, textAfter, line) {
+      return base.indent(state.base, textAfter, line);
+    },
+    electricChars: base.electricChars,
+
+    innerMode: function(state) { return {state: state.base, mode: base}; },
+
+    blankLine: function(state) {
+      var baseToken, overlayToken;
+      if (base.blankLine) baseToken = base.blankLine(state.base);
+      if (overlay.blankLine) overlayToken = overlay.blankLine(state.overlay);
+
+      return overlayToken == null ?
+        baseToken :
+        (combine && baseToken != null ? baseToken + " " + overlayToken : overlayToken);
+    }
+  };
+};
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/mode/simple.js

@@ -0,0 +1,216 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineSimpleMode = function(name, states) {
+    CodeMirror.defineMode(name, function(config) {
+      return CodeMirror.simpleMode(config, states);
+    });
+  };
+
+  CodeMirror.simpleMode = function(config, states) {
+    ensureState(states, "start");
+    var states_ = {}, meta = states.meta || {}, hasIndentation = false;
+    for (var state in states) if (state != meta && states.hasOwnProperty(state)) {
+      var list = states_[state] = [], orig = states[state];
+      for (var i = 0; i < orig.length; i++) {
+        var data = orig[i];
+        list.push(new Rule(data, states));
+        if (data.indent || data.dedent) hasIndentation = true;
+      }
+    }
+    var mode = {
+      startState: function() {
+        return {state: "start", pending: null,
+                local: null, localState: null,
+                indent: hasIndentation ? [] : null};
+      },
+      copyState: function(state) {
+        var s = {state: state.state, pending: state.pending,
+                 local: state.local, localState: null,
+                 indent: state.indent && state.indent.slice(0)};
+        if (state.localState)
+          s.localState = CodeMirror.copyState(state.local.mode, state.localState);
+        if (state.stack)
+          s.stack = state.stack.slice(0);
+        for (var pers = state.persistentStates; pers; pers = pers.next)
+          s.persistentStates = {mode: pers.mode,
+                                spec: pers.spec,
+                                state: pers.state == state.localState ? s.localState : CodeMirror.copyState(pers.mode, pers.state),
+                                next: s.persistentStates};
+        return s;
+      },
+      token: tokenFunction(states_, config),
+      innerMode: function(state) { return state.local && {mode: state.local.mode, state: state.localState}; },
+      indent: indentFunction(states_, meta)
+    };
+    if (meta) for (var prop in meta) if (meta.hasOwnProperty(prop))
+      mode[prop] = meta[prop];
+    return mode;
+  };
+
+  function ensureState(states, name) {
+    if (!states.hasOwnProperty(name))
+      throw new Error("Undefined state " + name + " in simple mode");
+  }
+
+  function toRegex(val, caret) {
+    if (!val) return /(?:)/;
+    var flags = "";
+    if (val instanceof RegExp) {
+      if (val.ignoreCase) flags = "i";
+      val = val.source;
+    } else {
+      val = String(val);
+    }
+    return new RegExp((caret === false ? "" : "^") + "(?:" + val + ")", flags);
+  }
+
+  function asToken(val) {
+    if (!val) return null;
+    if (val.apply) return val
+    if (typeof val == "string") return val.replace(/\./g, " ");
+    var result = [];
+    for (var i = 0; i < val.length; i++)
+      result.push(val[i] && val[i].replace(/\./g, " "));
+    return result;
+  }
+
+  function Rule(data, states) {
+    if (data.next || data.push) ensureState(states, data.next || data.push);
+    this.regex = toRegex(data.regex);
+    this.token = asToken(data.token);
+    this.data = data;
+  }
+
+  function tokenFunction(states, config) {
+    return function(stream, state) {
+      if (state.pending) {
+        var pend = state.pending.shift();
+        if (state.pending.length == 0) state.pending = null;
+        stream.pos += pend.text.length;
+        return pend.token;
+      }
+
+      if (state.local) {
+        if (state.local.end && stream.match(state.local.end)) {
+          var tok = state.local.endToken || null;
+          state.local = state.localState = null;
+          return tok;
+        } else {
+          var tok = state.local.mode.token(stream, state.localState), m;
+          if (state.local.endScan && (m = state.local.endScan.exec(stream.current())))
+            stream.pos = stream.start + m.index;
+          return tok;
+        }
+      }
+
+      var curState = states[state.state];
+      for (var i = 0; i < curState.length; i++) {
+        var rule = curState[i];
+        var matches = (!rule.data.sol || stream.sol()) && stream.match(rule.regex);
+        if (matches) {
+          if (rule.data.next) {
+            state.state = rule.data.next;
+          } else if (rule.data.push) {
+            (state.stack || (state.stack = [])).push(state.state);
+            state.state = rule.data.push;
+          } else if (rule.data.pop && state.stack && state.stack.length) {
+            state.state = state.stack.pop();
+          }
+
+          if (rule.data.mode)
+            enterLocalMode(config, state, rule.data.mode, rule.token);
+          if (rule.data.indent)
+            state.indent.push(stream.indentation() + config.indentUnit);
+          if (rule.data.dedent)
+            state.indent.pop();
+          var token = rule.token
+          if (token && token.apply) token = token(matches)
+          if (matches.length > 2 && rule.token && typeof rule.token != "string") {
+            state.pending = [];
+            for (var j = 2; j < matches.length; j++)
+              if (matches[j])
+                state.pending.push({text: matches[j], token: rule.token[j - 1]});
+            stream.backUp(matches[0].length - (matches[1] ? matches[1].length : 0));
+            return token[0];
+          } else if (token && token.join) {
+            return token[0];
+          } else {
+            return token;
+          }
+        }
+      }
+      stream.next();
+      return null;
+    };
+  }
+
+  function cmp(a, b) {
+    if (a === b) return true;
+    if (!a || typeof a != "object" || !b || typeof b != "object") return false;
+    var props = 0;
+    for (var prop in a) if (a.hasOwnProperty(prop)) {
+      if (!b.hasOwnProperty(prop) || !cmp(a[prop], b[prop])) return false;
+      props++;
+    }
+    for (var prop in b) if (b.hasOwnProperty(prop)) props--;
+    return props == 0;
+  }
+
+  function enterLocalMode(config, state, spec, token) {
+    var pers;
+    if (spec.persistent) for (var p = state.persistentStates; p && !pers; p = p.next)
+      if (spec.spec ? cmp(spec.spec, p.spec) : spec.mode == p.mode) pers = p;
+    var mode = pers ? pers.mode : spec.mode || CodeMirror.getMode(config, spec.spec);
+    var lState = pers ? pers.state : CodeMirror.startState(mode);
+    if (spec.persistent && !pers)
+      state.persistentStates = {mode: mode, spec: spec.spec, state: lState, next: state.persistentStates};
+
+    state.localState = lState;
+    state.local = {mode: mode,
+                   end: spec.end && toRegex(spec.end),
+                   endScan: spec.end && spec.forceEnd !== false && toRegex(spec.end, false),
+                   endToken: token && token.join ? token[token.length - 1] : token};
+  }
+
+  function indexOf(val, arr) {
+    for (var i = 0; i < arr.length; i++) if (arr[i] === val) return true;
+  }
+
+  function indentFunction(states, meta) {
+    return function(state, textAfter, line) {
+      if (state.local && state.local.mode.indent)
+        return state.local.mode.indent(state.localState, textAfter, line);
+      if (state.indent == null || state.local || meta.dontIndentStates && indexOf(state.state, meta.dontIndentStates) > -1)
+        return CodeMirror.Pass;
+
+      var pos = state.indent.length - 1, rules = states[state.state];
+      scan: for (;;) {
+        for (var i = 0; i < rules.length; i++) {
+          var rule = rules[i];
+          if (rule.data.dedent && rule.data.dedentIfLineStart !== false) {
+            var m = rule.regex.exec(textAfter);
+            if (m && m[0]) {
+              pos--;
+              if (rule.next || rule.push) rules = states[rule.next || rule.push];
+              textAfter = textAfter.slice(m[0].length);
+              continue scan;
+            }
+          }
+        }
+        break;
+      }
+      return pos < 0 ? 0 : state.indent[pos];
+    };
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/runmode/colorize.js

@@ -0,0 +1,40 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("./runmode"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "./runmode"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var isBlock = /^(p|li|div|h\\d|pre|blockquote|td)$/;
+
+  function textContent(node, out) {
+    if (node.nodeType == 3) return out.push(node.nodeValue);
+    for (var ch = node.firstChild; ch; ch = ch.nextSibling) {
+      textContent(ch, out);
+      if (isBlock.test(node.nodeType)) out.push("\n");
+    }
+  }
+
+  CodeMirror.colorize = function(collection, defaultMode) {
+    if (!collection) collection = document.body.getElementsByTagName("pre");
+
+    for (var i = 0; i < collection.length; ++i) {
+      var node = collection[i];
+      var mode = node.getAttribute("data-lang") || defaultMode;
+      if (!mode) continue;
+
+      var text = [];
+      textContent(node, text);
+      node.innerHTML = "";
+      CodeMirror.runMode(text.join(""), mode, node);
+
+      node.className += " cm-s-default";
+    }
+  };
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/runmode/runmode-standalone.js

@@ -0,0 +1,333 @@
+(function () {
+  'use strict';
+
+  function copyObj(obj, target, overwrite) {
+    if (!target) { target = {}; }
+    for (var prop in obj)
+      { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+        { target[prop] = obj[prop]; } }
+    return target
+  }
+
+  // Counts the column offset in a string, taking tabs into account.
+  // Used mostly to find indentation.
+  function countColumn(string, end, tabSize, startIndex, startValue) {
+    if (end == null) {
+      end = string.search(/[^\s\u00a0]/);
+      if (end == -1) { end = string.length; }
+    }
+    for (var i = startIndex || 0, n = startValue || 0;;) {
+      var nextTab = string.indexOf("\t", i);
+      if (nextTab < 0 || nextTab >= end)
+        { return n + (end - i) }
+      n += nextTab - i;
+      n += tabSize - (n % tabSize);
+      i = nextTab + 1;
+    }
+  }
+
+  function nothing() {}
+
+  function createObj(base, props) {
+    var inst;
+    if (Object.create) {
+      inst = Object.create(base);
+    } else {
+      nothing.prototype = base;
+      inst = new nothing();
+    }
+    if (props) { copyObj(props, inst); }
+    return inst
+  }
+
+  // STRING STREAM
+
+  // Fed to the mode parsers, provides helper functions to make
+  // parsers more succinct.
+
+  var StringStream = function(string, tabSize, lineOracle) {
+    this.pos = this.start = 0;
+    this.string = string;
+    this.tabSize = tabSize || 8;
+    this.lastColumnPos = this.lastColumnValue = 0;
+    this.lineStart = 0;
+    this.lineOracle = lineOracle;
+  };
+
+  StringStream.prototype.eol = function () {return this.pos >= this.string.length};
+  StringStream.prototype.sol = function () {return this.pos == this.lineStart};
+  StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
+  StringStream.prototype.next = function () {
+    if (this.pos < this.string.length)
+      { return this.string.charAt(this.pos++) }
+  };
+  StringStream.prototype.eat = function (match) {
+    var ch = this.string.charAt(this.pos);
+    var ok;
+    if (typeof match == "string") { ok = ch == match; }
+    else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
+    if (ok) {++this.pos; return ch}
+  };
+  StringStream.prototype.eatWhile = function (match) {
+    var start = this.pos;
+    while (this.eat(match)){}
+    return this.pos > start
+  };
+  StringStream.prototype.eatSpace = function () {
+    var start = this.pos;
+    while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }
+    return this.pos > start
+  };
+  StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
+  StringStream.prototype.skipTo = function (ch) {
+    var found = this.string.indexOf(ch, this.pos);
+    if (found > -1) {this.pos = found; return true}
+  };
+  StringStream.prototype.backUp = function (n) {this.pos -= n;};
+  StringStream.prototype.column = function () {
+    if (this.lastColumnPos < this.start) {
+      this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
+      this.lastColumnPos = this.start;
+    }
+    return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+  };
+  StringStream.prototype.indentation = function () {
+    return countColumn(this.string, null, this.tabSize) -
+      (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+  };
+  StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
+    if (typeof pattern == "string") {
+      var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
+      var substr = this.string.substr(this.pos, pattern.length);
+      if (cased(substr) == cased(pattern)) {
+        if (consume !== false) { this.pos += pattern.length; }
+        return true
+      }
+    } else {
+      var match = this.string.slice(this.pos).match(pattern);
+      if (match && match.index > 0) { return null }
+      if (match && consume !== false) { this.pos += match[0].length; }
+      return match
+    }
+  };
+  StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
+  StringStream.prototype.hideFirstChars = function (n, inner) {
+    this.lineStart += n;
+    try { return inner() }
+    finally { this.lineStart -= n; }
+  };
+  StringStream.prototype.lookAhead = function (n) {
+    var oracle = this.lineOracle;
+    return oracle && oracle.lookAhead(n)
+  };
+  StringStream.prototype.baseToken = function () {
+    var oracle = this.lineOracle;
+    return oracle && oracle.baseToken(this.pos)
+  };
+
+  // Known modes, by name and by MIME
+  var modes = {}, mimeModes = {};
+
+  // Extra arguments are stored as the mode's dependencies, which is
+  // used by (legacy) mechanisms like loadmode.js to automatically
+  // load a mode. (Preferred mechanism is the require/define calls.)
+  function defineMode(name, mode) {
+    if (arguments.length > 2)
+      { mode.dependencies = Array.prototype.slice.call(arguments, 2); }
+    modes[name] = mode;
+  }
+
+  function defineMIME(mime, spec) {
+    mimeModes[mime] = spec;
+  }
+
+  // Given a MIME type, a {name, ...options} config object, or a name
+  // string, return a mode config object.
+  function resolveMode(spec) {
+    if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+      spec = mimeModes[spec];
+    } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+      var found = mimeModes[spec.name];
+      if (typeof found == "string") { found = {name: found}; }
+      spec = createObj(found, spec);
+      spec.name = found.name;
+    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+      return resolveMode("application/xml")
+    } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
+      return resolveMode("application/json")
+    }
+    if (typeof spec == "string") { return {name: spec} }
+    else { return spec || {name: "null"} }
+  }
+
+  // Given a mode spec (anything that resolveMode accepts), find and
+  // initialize an actual mode object.
+  function getMode(options, spec) {
+    spec = resolveMode(spec);
+    var mfactory = modes[spec.name];
+    if (!mfactory) { return getMode(options, "text/plain") }
+    var modeObj = mfactory(options, spec);
+    if (modeExtensions.hasOwnProperty(spec.name)) {
+      var exts = modeExtensions[spec.name];
+      for (var prop in exts) {
+        if (!exts.hasOwnProperty(prop)) { continue }
+        if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
+        modeObj[prop] = exts[prop];
+      }
+    }
+    modeObj.name = spec.name;
+    if (spec.helperType) { modeObj.helperType = spec.helperType; }
+    if (spec.modeProps) { for (var prop$1 in spec.modeProps)
+      { modeObj[prop$1] = spec.modeProps[prop$1]; } }
+
+    return modeObj
+  }
+
+  // This can be used to attach properties to mode objects from
+  // outside the actual mode definition.
+  var modeExtensions = {};
+  function extendMode(mode, properties) {
+    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
+    copyObj(properties, exts);
+  }
+
+  function copyState(mode, state) {
+    if (state === true) { return state }
+    if (mode.copyState) { return mode.copyState(state) }
+    var nstate = {};
+    for (var n in state) {
+      var val = state[n];
+      if (val instanceof Array) { val = val.concat([]); }
+      nstate[n] = val;
+    }
+    return nstate
+  }
+
+  // Given a mode and a state (for that mode), find the inner mode and
+  // state at the position that the state refers to.
+  function innerMode(mode, state) {
+    var info;
+    while (mode.innerMode) {
+      info = mode.innerMode(state);
+      if (!info || info.mode == mode) { break }
+      state = info.state;
+      mode = info.mode;
+    }
+    return info || {mode: mode, state: state}
+  }
+
+  function startState(mode, a1, a2) {
+    return mode.startState ? mode.startState(a1, a2) : true
+  }
+
+  var modeMethods = ({
+    __proto__: null,
+    modes: modes,
+    mimeModes: mimeModes,
+    defineMode: defineMode,
+    defineMIME: defineMIME,
+    resolveMode: resolveMode,
+    getMode: getMode,
+    modeExtensions: modeExtensions,
+    extendMode: extendMode,
+    copyState: copyState,
+    innerMode: innerMode,
+    startState: startState
+  });
+
+  // declare global: globalThis, CodeMirror
+
+  // Create a minimal CodeMirror needed to use runMode, and assign to root.
+  var root = typeof globalThis !== 'undefined' ? globalThis : window;
+  root.CodeMirror = {};
+
+  // Copy StringStream and mode methods into CodeMirror object.
+  CodeMirror.StringStream = StringStream;
+  for (var exported in modeMethods) { CodeMirror[exported] = modeMethods[exported]; }
+
+  // Minimal default mode.
+  CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
+  CodeMirror.defineMIME("text/plain", "null");
+
+  CodeMirror.registerHelper = CodeMirror.registerGlobalHelper = Math.min;
+  CodeMirror.splitLines = function(string) { return string.split(/\r?\n|\r/) };
+
+  CodeMirror.defaults = { indentUnit: 2 };
+
+  // CodeMirror, copyright (c) by Marijn Haverbeke and others
+  // Distributed under an MIT license: https://codemirror.net/LICENSE
+
+  (function(mod) {
+    if (typeof exports == "object" && typeof module == "object") // CommonJS
+      { mod(require("../../lib/codemirror")); }
+    else if (typeof define == "function" && define.amd) // AMD
+      { define(["../../lib/codemirror"], mod); }
+    else // Plain browser env
+      { mod(CodeMirror); }
+  })(function(CodeMirror) {
+
+  CodeMirror.runMode = function(string, modespec, callback, options) {
+    var mode = CodeMirror.getMode(CodeMirror.defaults, modespec);
+    var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize;
+
+    // Create a tokenizing callback function if passed-in callback is a DOM element.
+    if (callback.appendChild) {
+      var ie = /MSIE \d/.test(navigator.userAgent);
+      var ie_lt9 = ie && (document.documentMode == null || document.documentMode < 9);
+      var node = callback, col = 0;
+      node.innerHTML = "";
+      callback = function(text, style) {
+        if (text == "\n") {
+          // Emitting LF or CRLF on IE8 or earlier results in an incorrect display.
+          // Emitting a carriage return makes everything ok.
+          node.appendChild(document.createTextNode(ie_lt9 ? '\r' : text));
+          col = 0;
+          return;
+        }
+        var content = "";
+        // replace tabs
+        for (var pos = 0;;) {
+          var idx = text.indexOf("\t", pos);
+          if (idx == -1) {
+            content += text.slice(pos);
+            col += text.length - pos;
+            break;
+          } else {
+            col += idx - pos;
+            content += text.slice(pos, idx);
+            var size = tabSize - col % tabSize;
+            col += size;
+            for (var i = 0; i < size; ++i) { content += " "; }
+            pos = idx + 1;
+          }
+        }
+        // Create a node with token style and append it to the callback DOM element.
+        if (style) {
+          var sp = node.appendChild(document.createElement("span"));
+          sp.className = "cm-" + style.replace(/ +/g, " cm-");
+          sp.appendChild(document.createTextNode(content));
+        } else {
+          node.appendChild(document.createTextNode(content));
+        }
+      };
+    }
+
+    var lines = CodeMirror.splitLines(string), state = (options && options.state) || CodeMirror.startState(mode);
+    for (var i = 0, e = lines.length; i < e; ++i) {
+      if (i) { callback("\n"); }
+      var stream = new CodeMirror.StringStream(lines[i], null, {
+        lookAhead: function(n) { return lines[i + n] },
+        baseToken: function() {}
+      });
+      if (!stream.string && mode.blankLine) { mode.blankLine(state); }
+      while (!stream.eol()) {
+        var style = mode.token(stream, state);
+        callback(stream.current(), style, i, stream.start, state);
+        stream.start = stream.pos;
+      }
+    }
+  };
+
+  });
+
+}());

venv/Lib/site-packages/notebook/static/components/codemirror/addon/runmode/runmode.js

@@ -0,0 +1,76 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.runMode = function(string, modespec, callback, options) {
+  var mode = CodeMirror.getMode(CodeMirror.defaults, modespec);
+  var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize;
+
+  // Create a tokenizing callback function if passed-in callback is a DOM element.
+  if (callback.appendChild) {
+    var ie = /MSIE \d/.test(navigator.userAgent);
+    var ie_lt9 = ie && (document.documentMode == null || document.documentMode < 9);
+    var node = callback, col = 0;
+    node.innerHTML = "";
+    callback = function(text, style) {
+      if (text == "\n") {
+        // Emitting LF or CRLF on IE8 or earlier results in an incorrect display.
+        // Emitting a carriage return makes everything ok.
+        node.appendChild(document.createTextNode(ie_lt9 ? '\r' : text));
+        col = 0;
+        return;
+      }
+      var content = "";
+      // replace tabs
+      for (var pos = 0;;) {
+        var idx = text.indexOf("\t", pos);
+        if (idx == -1) {
+          content += text.slice(pos);
+          col += text.length - pos;
+          break;
+        } else {
+          col += idx - pos;
+          content += text.slice(pos, idx);
+          var size = tabSize - col % tabSize;
+          col += size;
+          for (var i = 0; i < size; ++i) content += " ";
+          pos = idx + 1;
+        }
+      }
+      // Create a node with token style and append it to the callback DOM element.
+      if (style) {
+        var sp = node.appendChild(document.createElement("span"));
+        sp.className = "cm-" + style.replace(/ +/g, " cm-");
+        sp.appendChild(document.createTextNode(content));
+      } else {
+        node.appendChild(document.createTextNode(content));
+      }
+    };
+  }
+
+  var lines = CodeMirror.splitLines(string), state = (options && options.state) || CodeMirror.startState(mode);
+  for (var i = 0, e = lines.length; i < e; ++i) {
+    if (i) callback("\n");
+    var stream = new CodeMirror.StringStream(lines[i], null, {
+      lookAhead: function(n) { return lines[i + n] },
+      baseToken: function() {}
+    });
+    if (!stream.string && mode.blankLine) mode.blankLine(state);
+    while (!stream.eol()) {
+      var style = mode.token(stream, state);
+      callback(stream.current(), style, i, stream.start, state);
+      stream.start = stream.pos;
+    }
+  }
+};
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/runmode/runmode.node.js

@@ -0,0 +1,329 @@
+'use strict';
+
+function copyObj(obj, target, overwrite) {
+  if (!target) { target = {}; }
+  for (var prop in obj)
+    { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+      { target[prop] = obj[prop]; } }
+  return target
+}
+
+// Counts the column offset in a string, taking tabs into account.
+// Used mostly to find indentation.
+function countColumn(string, end, tabSize, startIndex, startValue) {
+  if (end == null) {
+    end = string.search(/[^\s\u00a0]/);
+    if (end == -1) { end = string.length; }
+  }
+  for (var i = startIndex || 0, n = startValue || 0;;) {
+    var nextTab = string.indexOf("\t", i);
+    if (nextTab < 0 || nextTab >= end)
+      { return n + (end - i) }
+    n += nextTab - i;
+    n += tabSize - (n % tabSize);
+    i = nextTab + 1;
+  }
+}
+
+function nothing() {}
+
+function createObj(base, props) {
+  var inst;
+  if (Object.create) {
+    inst = Object.create(base);
+  } else {
+    nothing.prototype = base;
+    inst = new nothing();
+  }
+  if (props) { copyObj(props, inst); }
+  return inst
+}
+
+// STRING STREAM
+
+// Fed to the mode parsers, provides helper functions to make
+// parsers more succinct.
+
+var StringStream = function(string, tabSize, lineOracle) {
+  this.pos = this.start = 0;
+  this.string = string;
+  this.tabSize = tabSize || 8;
+  this.lastColumnPos = this.lastColumnValue = 0;
+  this.lineStart = 0;
+  this.lineOracle = lineOracle;
+};
+
+StringStream.prototype.eol = function () {return this.pos >= this.string.length};
+StringStream.prototype.sol = function () {return this.pos == this.lineStart};
+StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
+StringStream.prototype.next = function () {
+  if (this.pos < this.string.length)
+    { return this.string.charAt(this.pos++) }
+};
+StringStream.prototype.eat = function (match) {
+  var ch = this.string.charAt(this.pos);
+  var ok;
+  if (typeof match == "string") { ok = ch == match; }
+  else { ok = ch && (match.test ? match.test(ch) : match(ch)); }
+  if (ok) {++this.pos; return ch}
+};
+StringStream.prototype.eatWhile = function (match) {
+  var start = this.pos;
+  while (this.eat(match)){}
+  return this.pos > start
+};
+StringStream.prototype.eatSpace = function () {
+  var start = this.pos;
+  while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; }
+  return this.pos > start
+};
+StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;};
+StringStream.prototype.skipTo = function (ch) {
+  var found = this.string.indexOf(ch, this.pos);
+  if (found > -1) {this.pos = found; return true}
+};
+StringStream.prototype.backUp = function (n) {this.pos -= n;};
+StringStream.prototype.column = function () {
+  if (this.lastColumnPos < this.start) {
+    this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
+    this.lastColumnPos = this.start;
+  }
+  return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+};
+StringStream.prototype.indentation = function () {
+  return countColumn(this.string, null, this.tabSize) -
+    (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+};
+StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
+  if (typeof pattern == "string") {
+    var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; };
+    var substr = this.string.substr(this.pos, pattern.length);
+    if (cased(substr) == cased(pattern)) {
+      if (consume !== false) { this.pos += pattern.length; }
+      return true
+    }
+  } else {
+    var match = this.string.slice(this.pos).match(pattern);
+    if (match && match.index > 0) { return null }
+    if (match && consume !== false) { this.pos += match[0].length; }
+    return match
+  }
+};
+StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
+StringStream.prototype.hideFirstChars = function (n, inner) {
+  this.lineStart += n;
+  try { return inner() }
+  finally { this.lineStart -= n; }
+};
+StringStream.prototype.lookAhead = function (n) {
+  var oracle = this.lineOracle;
+  return oracle && oracle.lookAhead(n)
+};
+StringStream.prototype.baseToken = function () {
+  var oracle = this.lineOracle;
+  return oracle && oracle.baseToken(this.pos)
+};
+
+// Known modes, by name and by MIME
+var modes = {}, mimeModes = {};
+
+// Extra arguments are stored as the mode's dependencies, which is
+// used by (legacy) mechanisms like loadmode.js to automatically
+// load a mode. (Preferred mechanism is the require/define calls.)
+function defineMode(name, mode) {
+  if (arguments.length > 2)
+    { mode.dependencies = Array.prototype.slice.call(arguments, 2); }
+  modes[name] = mode;
+}
+
+function defineMIME(mime, spec) {
+  mimeModes[mime] = spec;
+}
+
+// Given a MIME type, a {name, ...options} config object, or a name
+// string, return a mode config object.
+function resolveMode(spec) {
+  if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+    spec = mimeModes[spec];
+  } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+    var found = mimeModes[spec.name];
+    if (typeof found == "string") { found = {name: found}; }
+    spec = createObj(found, spec);
+    spec.name = found.name;
+  } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+    return resolveMode("application/xml")
+  } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
+    return resolveMode("application/json")
+  }
+  if (typeof spec == "string") { return {name: spec} }
+  else { return spec || {name: "null"} }
+}
+
+// Given a mode spec (anything that resolveMode accepts), find and
+// initialize an actual mode object.
+function getMode(options, spec) {
+  spec = resolveMode(spec);
+  var mfactory = modes[spec.name];
+  if (!mfactory) { return getMode(options, "text/plain") }
+  var modeObj = mfactory(options, spec);
+  if (modeExtensions.hasOwnProperty(spec.name)) {
+    var exts = modeExtensions[spec.name];
+    for (var prop in exts) {
+      if (!exts.hasOwnProperty(prop)) { continue }
+      if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; }
+      modeObj[prop] = exts[prop];
+    }
+  }
+  modeObj.name = spec.name;
+  if (spec.helperType) { modeObj.helperType = spec.helperType; }
+  if (spec.modeProps) { for (var prop$1 in spec.modeProps)
+    { modeObj[prop$1] = spec.modeProps[prop$1]; } }
+
+  return modeObj
+}
+
+// This can be used to attach properties to mode objects from
+// outside the actual mode definition.
+var modeExtensions = {};
+function extendMode(mode, properties) {
+  var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
+  copyObj(properties, exts);
+}
+
+function copyState(mode, state) {
+  if (state === true) { return state }
+  if (mode.copyState) { return mode.copyState(state) }
+  var nstate = {};
+  for (var n in state) {
+    var val = state[n];
+    if (val instanceof Array) { val = val.concat([]); }
+    nstate[n] = val;
+  }
+  return nstate
+}
+
+// Given a mode and a state (for that mode), find the inner mode and
+// state at the position that the state refers to.
+function innerMode(mode, state) {
+  var info;
+  while (mode.innerMode) {
+    info = mode.innerMode(state);
+    if (!info || info.mode == mode) { break }
+    state = info.state;
+    mode = info.mode;
+  }
+  return info || {mode: mode, state: state}
+}
+
+function startState(mode, a1, a2) {
+  return mode.startState ? mode.startState(a1, a2) : true
+}
+
+var modeMethods = ({
+  __proto__: null,
+  modes: modes,
+  mimeModes: mimeModes,
+  defineMode: defineMode,
+  defineMIME: defineMIME,
+  resolveMode: resolveMode,
+  getMode: getMode,
+  modeExtensions: modeExtensions,
+  extendMode: extendMode,
+  copyState: copyState,
+  innerMode: innerMode,
+  startState: startState
+});
+
+// Copy StringStream and mode methods into exports (CodeMirror) object.
+exports.StringStream = StringStream;
+exports.countColumn = countColumn;
+for (var exported in modeMethods) { exports[exported] = modeMethods[exported]; }
+
+// Shim library CodeMirror with the minimal CodeMirror defined above.
+require.cache[require.resolve("../../lib/codemirror")] = require.cache[require.resolve("./runmode.node")];
+require.cache[require.resolve("../../addon/runmode/runmode")] = require.cache[require.resolve("./runmode.node")];
+
+// Minimal default mode.
+exports.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); });
+exports.defineMIME("text/plain", "null");
+
+exports.registerHelper = exports.registerGlobalHelper = Math.min;
+exports.splitLines = function(string) { return string.split(/\r?\n|\r/) };
+
+exports.defaults = { indentUnit: 2 };
+
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    { mod(require("../../lib/codemirror")); }
+  else if (typeof define == "function" && define.amd) // AMD
+    { define(["../../lib/codemirror"], mod); }
+  else // Plain browser env
+    { mod(CodeMirror); }
+})(function(CodeMirror) {
+
+CodeMirror.runMode = function(string, modespec, callback, options) {
+  var mode = CodeMirror.getMode(CodeMirror.defaults, modespec);
+  var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize;
+
+  // Create a tokenizing callback function if passed-in callback is a DOM element.
+  if (callback.appendChild) {
+    var ie = /MSIE \d/.test(navigator.userAgent);
+    var ie_lt9 = ie && (document.documentMode == null || document.documentMode < 9);
+    var node = callback, col = 0;
+    node.innerHTML = "";
+    callback = function(text, style) {
+      if (text == "\n") {
+        // Emitting LF or CRLF on IE8 or earlier results in an incorrect display.
+        // Emitting a carriage return makes everything ok.
+        node.appendChild(document.createTextNode(ie_lt9 ? '\r' : text));
+        col = 0;
+        return;
+      }
+      var content = "";
+      // replace tabs
+      for (var pos = 0;;) {
+        var idx = text.indexOf("\t", pos);
+        if (idx == -1) {
+          content += text.slice(pos);
+          col += text.length - pos;
+          break;
+        } else {
+          col += idx - pos;
+          content += text.slice(pos, idx);
+          var size = tabSize - col % tabSize;
+          col += size;
+          for (var i = 0; i < size; ++i) { content += " "; }
+          pos = idx + 1;
+        }
+      }
+      // Create a node with token style and append it to the callback DOM element.
+      if (style) {
+        var sp = node.appendChild(document.createElement("span"));
+        sp.className = "cm-" + style.replace(/ +/g, " cm-");
+        sp.appendChild(document.createTextNode(content));
+      } else {
+        node.appendChild(document.createTextNode(content));
+      }
+    };
+  }
+
+  var lines = CodeMirror.splitLines(string), state = (options && options.state) || CodeMirror.startState(mode);
+  for (var i = 0, e = lines.length; i < e; ++i) {
+    if (i) { callback("\n"); }
+    var stream = new CodeMirror.StringStream(lines[i], null, {
+      lookAhead: function(n) { return lines[i + n] },
+      baseToken: function() {}
+    });
+    if (!stream.string && mode.blankLine) { mode.blankLine(state); }
+    while (!stream.eol()) {
+      var style = mode.token(stream, state);
+      callback(stream.current(), style, i, stream.start, state);
+      stream.start = stream.pos;
+    }
+  }
+};
+
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/scroll/annotatescrollbar.js

@@ -0,0 +1,122 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineExtension("annotateScrollbar", function(options) {
+    if (typeof options == "string") options = {className: options};
+    return new Annotation(this, options);
+  });
+
+  CodeMirror.defineOption("scrollButtonHeight", 0);
+
+  function Annotation(cm, options) {
+    this.cm = cm;
+    this.options = options;
+    this.buttonHeight = options.scrollButtonHeight || cm.getOption("scrollButtonHeight");
+    this.annotations = [];
+    this.doRedraw = this.doUpdate = null;
+    this.div = cm.getWrapperElement().appendChild(document.createElement("div"));
+    this.div.style.cssText = "position: absolute; right: 0; top: 0; z-index: 7; pointer-events: none";
+    this.computeScale();
+
+    function scheduleRedraw(delay) {
+      clearTimeout(self.doRedraw);
+      self.doRedraw = setTimeout(function() { self.redraw(); }, delay);
+    }
+
+    var self = this;
+    cm.on("refresh", this.resizeHandler = function() {
+      clearTimeout(self.doUpdate);
+      self.doUpdate = setTimeout(function() {
+        if (self.computeScale()) scheduleRedraw(20);
+      }, 100);
+    });
+    cm.on("markerAdded", this.resizeHandler);
+    cm.on("markerCleared", this.resizeHandler);
+    if (options.listenForChanges !== false)
+      cm.on("changes", this.changeHandler = function() {
+        scheduleRedraw(250);
+      });
+  }
+
+  Annotation.prototype.computeScale = function() {
+    var cm = this.cm;
+    var hScale = (cm.getWrapperElement().clientHeight - cm.display.barHeight - this.buttonHeight * 2) /
+      cm.getScrollerElement().scrollHeight
+    if (hScale != this.hScale) {
+      this.hScale = hScale;
+      return true;
+    }
+  };
+
+  Annotation.prototype.update = function(annotations) {
+    this.annotations = annotations;
+    this.redraw();
+  };
+
+  Annotation.prototype.redraw = function(compute) {
+    if (compute !== false) this.computeScale();
+    var cm = this.cm, hScale = this.hScale;
+
+    var frag = document.createDocumentFragment(), anns = this.annotations;
+
+    var wrapping = cm.getOption("lineWrapping");
+    var singleLineH = wrapping && cm.defaultTextHeight() * 1.5;
+    var curLine = null, curLineObj = null;
+    function getY(pos, top) {
+      if (curLine != pos.line) {
+        curLine = pos.line;
+        curLineObj = cm.getLineHandle(curLine);
+      }
+      if ((curLineObj.widgets && curLineObj.widgets.length) ||
+          (wrapping && curLineObj.height > singleLineH))
+        return cm.charCoords(pos, "local")[top ? "top" : "bottom"];
+      var topY = cm.heightAtLine(curLineObj, "local");
+      return topY + (top ? 0 : curLineObj.height);
+    }
+
+    var lastLine = cm.lastLine()
+    if (cm.display.barWidth) for (var i = 0, nextTop; i < anns.length; i++) {
+      var ann = anns[i];
+      if (ann.to.line > lastLine) continue;
+      var top = nextTop || getY(ann.from, true) * hScale;
+      var bottom = getY(ann.to, false) * hScale;
+      while (i < anns.length - 1) {
+        if (anns[i + 1].to.line > lastLine) break;
+        nextTop = getY(anns[i + 1].from, true) * hScale;
+        if (nextTop > bottom + .9) break;
+        ann = anns[++i];
+        bottom = getY(ann.to, false) * hScale;
+      }
+      if (bottom == top) continue;
+      var height = Math.max(bottom - top, 3);
+
+      var elt = frag.appendChild(document.createElement("div"));
+      elt.style.cssText = "position: absolute; right: 0px; width: " + Math.max(cm.display.barWidth - 1, 2) + "px; top: "
+        + (top + this.buttonHeight) + "px; height: " + height + "px";
+      elt.className = this.options.className;
+      if (ann.id) {
+        elt.setAttribute("annotation-id", ann.id);
+      }
+    }
+    this.div.textContent = "";
+    this.div.appendChild(frag);
+  };
+
+  Annotation.prototype.clear = function() {
+    this.cm.off("refresh", this.resizeHandler);
+    this.cm.off("markerAdded", this.resizeHandler);
+    this.cm.off("markerCleared", this.resizeHandler);
+    if (this.changeHandler) this.cm.off("changes", this.changeHandler);
+    this.div.parentNode.removeChild(this.div);
+  };
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/scroll/scrollpastend.js

@@ -0,0 +1,48 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineOption("scrollPastEnd", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      cm.off("change", onChange);
+      cm.off("refresh", updateBottomMargin);
+      cm.display.lineSpace.parentNode.style.paddingBottom = "";
+      cm.state.scrollPastEndPadding = null;
+    }
+    if (val) {
+      cm.on("change", onChange);
+      cm.on("refresh", updateBottomMargin);
+      updateBottomMargin(cm);
+    }
+  });
+
+  function onChange(cm, change) {
+    if (CodeMirror.changeEnd(change).line == cm.lastLine())
+      updateBottomMargin(cm);
+  }
+
+  function updateBottomMargin(cm) {
+    var padding = "";
+    if (cm.lineCount() > 1) {
+      var totalH = cm.display.scroller.clientHeight - 30,
+          lastLineH = cm.getLineHandle(cm.lastLine()).height;
+      padding = (totalH - lastLineH) + "px";
+    }
+    if (cm.state.scrollPastEndPadding != padding) {
+      cm.state.scrollPastEndPadding = padding;
+      cm.display.lineSpace.parentNode.style.paddingBottom = padding;
+      cm.off("refresh", updateBottomMargin);
+      cm.setSize();
+      cm.on("refresh", updateBottomMargin);
+    }
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/scroll/simplescrollbars.css

@@ -0,0 +1,66 @@
+.CodeMirror-simplescroll-horizontal div, .CodeMirror-simplescroll-vertical div {
+  position: absolute;
+  background: #ccc;
+  -moz-box-sizing: border-box;
+  box-sizing: border-box;
+  border: 1px solid #bbb;
+  border-radius: 2px;
+}
+
+.CodeMirror-simplescroll-horizontal, .CodeMirror-simplescroll-vertical {
+  position: absolute;
+  z-index: 6;
+  background: #eee;
+}
+
+.CodeMirror-simplescroll-horizontal {
+  bottom: 0; left: 0;
+  height: 8px;
+}
+.CodeMirror-simplescroll-horizontal div {
+  bottom: 0;
+  height: 100%;
+}
+
+.CodeMirror-simplescroll-vertical {
+  right: 0; top: 0;
+  width: 8px;
+}
+.CodeMirror-simplescroll-vertical div {
+  right: 0;
+  width: 100%;
+}
+
+
+.CodeMirror-overlayscroll .CodeMirror-scrollbar-filler, .CodeMirror-overlayscroll .CodeMirror-gutter-filler {
+  display: none;
+}
+
+.CodeMirror-overlayscroll-horizontal div, .CodeMirror-overlayscroll-vertical div {
+  position: absolute;
+  background: #bcd;
+  border-radius: 3px;
+}
+
+.CodeMirror-overlayscroll-horizontal, .CodeMirror-overlayscroll-vertical {
+  position: absolute;
+  z-index: 6;
+}
+
+.CodeMirror-overlayscroll-horizontal {
+  bottom: 0; left: 0;
+  height: 6px;
+}
+.CodeMirror-overlayscroll-horizontal div {
+  bottom: 0;
+  height: 100%;
+}
+
+.CodeMirror-overlayscroll-vertical {
+  right: 0; top: 0;
+  width: 6px;
+}
+.CodeMirror-overlayscroll-vertical div {
+  right: 0;
+  width: 100%;
+}

venv/Lib/site-packages/notebook/static/components/codemirror/addon/scroll/simplescrollbars.js

@@ -0,0 +1,152 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function Bar(cls, orientation, scroll) {
+    this.orientation = orientation;
+    this.scroll = scroll;
+    this.screen = this.total = this.size = 1;
+    this.pos = 0;
+
+    this.node = document.createElement("div");
+    this.node.className = cls + "-" + orientation;
+    this.inner = this.node.appendChild(document.createElement("div"));
+
+    var self = this;
+    CodeMirror.on(this.inner, "mousedown", function(e) {
+      if (e.which != 1) return;
+      CodeMirror.e_preventDefault(e);
+      var axis = self.orientation == "horizontal" ? "pageX" : "pageY";
+      var start = e[axis], startpos = self.pos;
+      function done() {
+        CodeMirror.off(document, "mousemove", move);
+        CodeMirror.off(document, "mouseup", done);
+      }
+      function move(e) {
+        if (e.which != 1) return done();
+        self.moveTo(startpos + (e[axis] - start) * (self.total / self.size));
+      }
+      CodeMirror.on(document, "mousemove", move);
+      CodeMirror.on(document, "mouseup", done);
+    });
+
+    CodeMirror.on(this.node, "click", function(e) {
+      CodeMirror.e_preventDefault(e);
+      var innerBox = self.inner.getBoundingClientRect(), where;
+      if (self.orientation == "horizontal")
+        where = e.clientX < innerBox.left ? -1 : e.clientX > innerBox.right ? 1 : 0;
+      else
+        where = e.clientY < innerBox.top ? -1 : e.clientY > innerBox.bottom ? 1 : 0;
+      self.moveTo(self.pos + where * self.screen);
+    });
+
+    function onWheel(e) {
+      var moved = CodeMirror.wheelEventPixels(e)[self.orientation == "horizontal" ? "x" : "y"];
+      var oldPos = self.pos;
+      self.moveTo(self.pos + moved);
+      if (self.pos != oldPos) CodeMirror.e_preventDefault(e);
+    }
+    CodeMirror.on(this.node, "mousewheel", onWheel);
+    CodeMirror.on(this.node, "DOMMouseScroll", onWheel);
+  }
+
+  Bar.prototype.setPos = function(pos, force) {
+    if (pos < 0) pos = 0;
+    if (pos > this.total - this.screen) pos = this.total - this.screen;
+    if (!force && pos == this.pos) return false;
+    this.pos = pos;
+    this.inner.style[this.orientation == "horizontal" ? "left" : "top"] =
+      (pos * (this.size / this.total)) + "px";
+    return true
+  };
+
+  Bar.prototype.moveTo = function(pos) {
+    if (this.setPos(pos)) this.scroll(pos, this.orientation);
+  }
+
+  var minButtonSize = 10;
+
+  Bar.prototype.update = function(scrollSize, clientSize, barSize) {
+    var sizeChanged = this.screen != clientSize || this.total != scrollSize || this.size != barSize
+    if (sizeChanged) {
+      this.screen = clientSize;
+      this.total = scrollSize;
+      this.size = barSize;
+    }
+
+    var buttonSize = this.screen * (this.size / this.total);
+    if (buttonSize < minButtonSize) {
+      this.size -= minButtonSize - buttonSize;
+      buttonSize = minButtonSize;
+    }
+    this.inner.style[this.orientation == "horizontal" ? "width" : "height"] =
+      buttonSize + "px";
+    this.setPos(this.pos, sizeChanged);
+  };
+
+  function SimpleScrollbars(cls, place, scroll) {
+    this.addClass = cls;
+    this.horiz = new Bar(cls, "horizontal", scroll);
+    place(this.horiz.node);
+    this.vert = new Bar(cls, "vertical", scroll);
+    place(this.vert.node);
+    this.width = null;
+  }
+
+  SimpleScrollbars.prototype.update = function(measure) {
+    if (this.width == null) {
+      var style = window.getComputedStyle ? window.getComputedStyle(this.horiz.node) : this.horiz.node.currentStyle;
+      if (style) this.width = parseInt(style.height);
+    }
+    var width = this.width || 0;
+
+    var needsH = measure.scrollWidth > measure.clientWidth + 1;
+    var needsV = measure.scrollHeight > measure.clientHeight + 1;
+    this.vert.node.style.display = needsV ? "block" : "none";
+    this.horiz.node.style.display = needsH ? "block" : "none";
+
+    if (needsV) {
+      this.vert.update(measure.scrollHeight, measure.clientHeight,
+                       measure.viewHeight - (needsH ? width : 0));
+      this.vert.node.style.bottom = needsH ? width + "px" : "0";
+    }
+    if (needsH) {
+      this.horiz.update(measure.scrollWidth, measure.clientWidth,
+                        measure.viewWidth - (needsV ? width : 0) - measure.barLeft);
+      this.horiz.node.style.right = needsV ? width + "px" : "0";
+      this.horiz.node.style.left = measure.barLeft + "px";
+    }
+
+    return {right: needsV ? width : 0, bottom: needsH ? width : 0};
+  };
+
+  SimpleScrollbars.prototype.setScrollTop = function(pos) {
+    this.vert.setPos(pos);
+  };
+
+  SimpleScrollbars.prototype.setScrollLeft = function(pos) {
+    this.horiz.setPos(pos);
+  };
+
+  SimpleScrollbars.prototype.clear = function() {
+    var parent = this.horiz.node.parentNode;
+    parent.removeChild(this.horiz.node);
+    parent.removeChild(this.vert.node);
+  };
+
+  CodeMirror.scrollbarModel.simple = function(place, scroll) {
+    return new SimpleScrollbars("CodeMirror-simplescroll", place, scroll);
+  };
+  CodeMirror.scrollbarModel.overlay = function(place, scroll) {
+    return new SimpleScrollbars("CodeMirror-overlayscroll", place, scroll);
+  };
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/search/jump-to-line.js

@@ -0,0 +1,50 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Defines jumpToLine command. Uses dialog.js if present.
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../dialog/dialog"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../dialog/dialog"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function dialog(cm, text, shortText, deflt, f) {
+    if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
+    else f(prompt(shortText, deflt));
+  }
+
+  function getJumpDialog(cm) {
+    return cm.phrase("Jump to line:") + ' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">' + cm.phrase("(Use line:column or scroll% syntax)") + '</span>';
+  }
+
+  function interpretLine(cm, string) {
+    var num = Number(string)
+    if (/^[-+]/.test(string)) return cm.getCursor().line + num
+    else return num - 1
+  }
+
+  CodeMirror.commands.jumpToLine = function(cm) {
+    var cur = cm.getCursor();
+    dialog(cm, getJumpDialog(cm), cm.phrase("Jump to line:"), (cur.line + 1) + ":" + cur.ch, function(posStr) {
+      if (!posStr) return;
+
+      var match;
+      if (match = /^\s*([\+\-]?\d+)\s*\:\s*(\d+)\s*$/.exec(posStr)) {
+        cm.setCursor(interpretLine(cm, match[1]), Number(match[2]))
+      } else if (match = /^\s*([\+\-]?\d+(\.\d+)?)\%\s*/.exec(posStr)) {
+        var line = Math.round(cm.lineCount() * Number(match[1]) / 100);
+        if (/^[-+]/.test(match[1])) line = cur.line + line + 1;
+        cm.setCursor(line - 1, cur.ch);
+      } else if (match = /^\s*\:?\s*([\+\-]?\d+)\s*/.exec(posStr)) {
+        cm.setCursor(interpretLine(cm, match[1]), cur.ch);
+      }
+    });
+  };
+
+  CodeMirror.keyMap["default"]["Alt-G"] = "jumpToLine";
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/search/match-highlighter.js

@@ -0,0 +1,167 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Highlighting text that matches the selection
+//
+// Defines an option highlightSelectionMatches, which, when enabled,
+// will style strings that match the selection throughout the
+// document.
+//
+// The option can be set to true to simply enable it, or to a
+// {minChars, style, wordsOnly, showToken, delay} object to explicitly
+// configure it. minChars is the minimum amount of characters that should be
+// selected for the behavior to occur, and style is the token style to
+// apply to the matches. This will be prefixed by "cm-" to create an
+// actual CSS class name. If wordsOnly is enabled, the matches will be
+// highlighted only if the selected text is a word. showToken, when enabled,
+// will cause the current token to be highlighted when nothing is selected.
+// delay is used to specify how much time to wait, in milliseconds, before
+// highlighting the matches. If annotateScrollbar is enabled, the occurences
+// will be highlighted on the scrollbar via the matchesonscrollbar addon.
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("./matchesonscrollbar"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "./matchesonscrollbar"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var defaults = {
+    style: "matchhighlight",
+    minChars: 2,
+    delay: 100,
+    wordsOnly: false,
+    annotateScrollbar: false,
+    showToken: false,
+    trim: true
+  }
+
+  function State(options) {
+    this.options = {}
+    for (var name in defaults)
+      this.options[name] = (options && options.hasOwnProperty(name) ? options : defaults)[name]
+    this.overlay = this.timeout = null;
+    this.matchesonscroll = null;
+    this.active = false;
+  }
+
+  CodeMirror.defineOption("highlightSelectionMatches", false, function(cm, val, old) {
+    if (old && old != CodeMirror.Init) {
+      removeOverlay(cm);
+      clearTimeout(cm.state.matchHighlighter.timeout);
+      cm.state.matchHighlighter = null;
+      cm.off("cursorActivity", cursorActivity);
+      cm.off("focus", onFocus)
+    }
+    if (val) {
+      var state = cm.state.matchHighlighter = new State(val);
+      if (cm.hasFocus()) {
+        state.active = true
+        highlightMatches(cm)
+      } else {
+        cm.on("focus", onFocus)
+      }
+      cm.on("cursorActivity", cursorActivity);
+    }
+  });
+
+  function cursorActivity(cm) {
+    var state = cm.state.matchHighlighter;
+    if (state.active || cm.hasFocus()) scheduleHighlight(cm, state)
+  }
+
+  function onFocus(cm) {
+    var state = cm.state.matchHighlighter
+    if (!state.active) {
+      state.active = true
+      scheduleHighlight(cm, state)
+    }
+  }
+
+  function scheduleHighlight(cm, state) {
+    clearTimeout(state.timeout);
+    state.timeout = setTimeout(function() {highlightMatches(cm);}, state.options.delay);
+  }
+
+  function addOverlay(cm, query, hasBoundary, style) {
+    var state = cm.state.matchHighlighter;
+    cm.addOverlay(state.overlay = makeOverlay(query, hasBoundary, style));
+    if (state.options.annotateScrollbar && cm.showMatchesOnScrollbar) {
+      var searchFor = hasBoundary ? new RegExp((/\w/.test(query.charAt(0)) ? "\\b" : "") +
+                                               query.replace(/[\\\[.+*?(){|^$]/g, "\\$&") +
+                                               (/\w/.test(query.charAt(query.length - 1)) ? "\\b" : "")) : query;
+      state.matchesonscroll = cm.showMatchesOnScrollbar(searchFor, false,
+        {className: "CodeMirror-selection-highlight-scrollbar"});
+    }
+  }
+
+  function removeOverlay(cm) {
+    var state = cm.state.matchHighlighter;
+    if (state.overlay) {
+      cm.removeOverlay(state.overlay);
+      state.overlay = null;
+      if (state.matchesonscroll) {
+        state.matchesonscroll.clear();
+        state.matchesonscroll = null;
+      }
+    }
+  }
+
+  function highlightMatches(cm) {
+    cm.operation(function() {
+      var state = cm.state.matchHighlighter;
+      removeOverlay(cm);
+      if (!cm.somethingSelected() && state.options.showToken) {
+        var re = state.options.showToken === true ? /[\w$]/ : state.options.showToken;
+        var cur = cm.getCursor(), line = cm.getLine(cur.line), start = cur.ch, end = start;
+        while (start && re.test(line.charAt(start - 1))) --start;
+        while (end < line.length && re.test(line.charAt(end))) ++end;
+        if (start < end)
+          addOverlay(cm, line.slice(start, end), re, state.options.style);
+        return;
+      }
+      var from = cm.getCursor("from"), to = cm.getCursor("to");
+      if (from.line != to.line) return;
+      if (state.options.wordsOnly && !isWord(cm, from, to)) return;
+      var selection = cm.getRange(from, to)
+      if (state.options.trim) selection = selection.replace(/^\s+|\s+$/g, "")
+      if (selection.length >= state.options.minChars)
+        addOverlay(cm, selection, false, state.options.style);
+    });
+  }
+
+  function isWord(cm, from, to) {
+    var str = cm.getRange(from, to);
+    if (str.match(/^\w+$/) !== null) {
+        if (from.ch > 0) {
+            var pos = {line: from.line, ch: from.ch - 1};
+            var chr = cm.getRange(pos, from);
+            if (chr.match(/\W/) === null) return false;
+        }
+        if (to.ch < cm.getLine(from.line).length) {
+            var pos = {line: to.line, ch: to.ch + 1};
+            var chr = cm.getRange(to, pos);
+            if (chr.match(/\W/) === null) return false;
+        }
+        return true;
+    } else return false;
+  }
+
+  function boundariesAround(stream, re) {
+    return (!stream.start || !re.test(stream.string.charAt(stream.start - 1))) &&
+      (stream.pos == stream.string.length || !re.test(stream.string.charAt(stream.pos)));
+  }
+
+  function makeOverlay(query, hasBoundary, style) {
+    return {token: function(stream) {
+      if (stream.match(query) &&
+          (!hasBoundary || boundariesAround(stream, hasBoundary)))
+        return style;
+      stream.next();
+      stream.skipTo(query.charAt(0)) || stream.skipToEnd();
+    }};
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/search/matchesonscrollbar.css

@@ -0,0 +1,8 @@
+.CodeMirror-search-match {
+  background: gold;
+  border-top: 1px solid orange;
+  border-bottom: 1px solid orange;
+  -moz-box-sizing: border-box;
+  box-sizing: border-box;
+  opacity: .5;
+}

venv/Lib/site-packages/notebook/static/components/codemirror/addon/search/matchesonscrollbar.js

@@ -0,0 +1,97 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("./searchcursor"), require("../scroll/annotatescrollbar"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "./searchcursor", "../scroll/annotatescrollbar"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineExtension("showMatchesOnScrollbar", function(query, caseFold, options) {
+    if (typeof options == "string") options = {className: options};
+    if (!options) options = {};
+    return new SearchAnnotation(this, query, caseFold, options);
+  });
+
+  function SearchAnnotation(cm, query, caseFold, options) {
+    this.cm = cm;
+    this.options = options;
+    var annotateOptions = {listenForChanges: false};
+    for (var prop in options) annotateOptions[prop] = options[prop];
+    if (!annotateOptions.className) annotateOptions.className = "CodeMirror-search-match";
+    this.annotation = cm.annotateScrollbar(annotateOptions);
+    this.query = query;
+    this.caseFold = caseFold;
+    this.gap = {from: cm.firstLine(), to: cm.lastLine() + 1};
+    this.matches = [];
+    this.update = null;
+
+    this.findMatches();
+    this.annotation.update(this.matches);
+
+    var self = this;
+    cm.on("change", this.changeHandler = function(_cm, change) { self.onChange(change); });
+  }
+
+  var MAX_MATCHES = 1000;
+
+  SearchAnnotation.prototype.findMatches = function() {
+    if (!this.gap) return;
+    for (var i = 0; i < this.matches.length; i++) {
+      var match = this.matches[i];
+      if (match.from.line >= this.gap.to) break;
+      if (match.to.line >= this.gap.from) this.matches.splice(i--, 1);
+    }
+    var cursor = this.cm.getSearchCursor(this.query, CodeMirror.Pos(this.gap.from, 0), {caseFold: this.caseFold, multiline: this.options.multiline});
+    var maxMatches = this.options && this.options.maxMatches || MAX_MATCHES;
+    while (cursor.findNext()) {
+      var match = {from: cursor.from(), to: cursor.to()};
+      if (match.from.line >= this.gap.to) break;
+      this.matches.splice(i++, 0, match);
+      if (this.matches.length > maxMatches) break;
+    }
+    this.gap = null;
+  };
+
+  function offsetLine(line, changeStart, sizeChange) {
+    if (line <= changeStart) return line;
+    return Math.max(changeStart, line + sizeChange);
+  }
+
+  SearchAnnotation.prototype.onChange = function(change) {
+    var startLine = change.from.line;
+    var endLine = CodeMirror.changeEnd(change).line;
+    var sizeChange = endLine - change.to.line;
+    if (this.gap) {
+      this.gap.from = Math.min(offsetLine(this.gap.from, startLine, sizeChange), change.from.line);
+      this.gap.to = Math.max(offsetLine(this.gap.to, startLine, sizeChange), change.from.line);
+    } else {
+      this.gap = {from: change.from.line, to: endLine + 1};
+    }
+
+    if (sizeChange) for (var i = 0; i < this.matches.length; i++) {
+      var match = this.matches[i];
+      var newFrom = offsetLine(match.from.line, startLine, sizeChange);
+      if (newFrom != match.from.line) match.from = CodeMirror.Pos(newFrom, match.from.ch);
+      var newTo = offsetLine(match.to.line, startLine, sizeChange);
+      if (newTo != match.to.line) match.to = CodeMirror.Pos(newTo, match.to.ch);
+    }
+    clearTimeout(this.update);
+    var self = this;
+    this.update = setTimeout(function() { self.updateAfterChange(); }, 250);
+  };
+
+  SearchAnnotation.prototype.updateAfterChange = function() {
+    this.findMatches();
+    this.annotation.update(this.matches);
+  };
+
+  SearchAnnotation.prototype.clear = function() {
+    this.cm.off("change", this.changeHandler);
+    this.annotation.clear();
+  };
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/search/search.js

@@ -0,0 +1,260 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Define search commands. Depends on dialog.js or another
+// implementation of the openDialog method.
+
+// Replace works a little oddly -- it will do the replace on the next
+// Ctrl-G (or whatever is bound to findNext) press. You prevent a
+// replace by making sure the match is no longer selected when hitting
+// Ctrl-G.
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("./searchcursor"), require("../dialog/dialog"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "./searchcursor", "../dialog/dialog"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function searchOverlay(query, caseInsensitive) {
+    if (typeof query == "string")
+      query = new RegExp(query.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&"), caseInsensitive ? "gi" : "g");
+    else if (!query.global)
+      query = new RegExp(query.source, query.ignoreCase ? "gi" : "g");
+
+    return {token: function(stream) {
+      query.lastIndex = stream.pos;
+      var match = query.exec(stream.string);
+      if (match && match.index == stream.pos) {
+        stream.pos += match[0].length || 1;
+        return "searching";
+      } else if (match) {
+        stream.pos = match.index;
+      } else {
+        stream.skipToEnd();
+      }
+    }};
+  }
+
+  function SearchState() {
+    this.posFrom = this.posTo = this.lastQuery = this.query = null;
+    this.overlay = null;
+  }
+
+  function getSearchState(cm) {
+    return cm.state.search || (cm.state.search = new SearchState());
+  }
+
+  function queryCaseInsensitive(query) {
+    return typeof query == "string" && query == query.toLowerCase();
+  }
+
+  function getSearchCursor(cm, query, pos) {
+    // Heuristic: if the query string is all lowercase, do a case insensitive search.
+    return cm.getSearchCursor(query, pos, {caseFold: queryCaseInsensitive(query), multiline: true});
+  }
+
+  function persistentDialog(cm, text, deflt, onEnter, onKeyDown) {
+    cm.openDialog(text, onEnter, {
+      value: deflt,
+      selectValueOnOpen: true,
+      closeOnEnter: false,
+      onClose: function() { clearSearch(cm); },
+      onKeyDown: onKeyDown
+    });
+  }
+
+  function dialog(cm, text, shortText, deflt, f) {
+    if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
+    else f(prompt(shortText, deflt));
+  }
+
+  function confirmDialog(cm, text, shortText, fs) {
+    if (cm.openConfirm) cm.openConfirm(text, fs);
+    else if (confirm(shortText)) fs[0]();
+  }
+
+  function parseString(string) {
+    return string.replace(/\\([nrt\\])/g, function(match, ch) {
+      if (ch == "n") return "\n"
+      if (ch == "r") return "\r"
+      if (ch == "t") return "\t"
+      if (ch == "\\") return "\\"
+      return match
+    })
+  }
+
+  function parseQuery(query) {
+    var isRE = query.match(/^\/(.*)\/([a-z]*)$/);
+    if (isRE) {
+      try { query = new RegExp(isRE[1], isRE[2].indexOf("i") == -1 ? "" : "i"); }
+      catch(e) {} // Not a regular expression after all, do a string search
+    } else {
+      query = parseString(query)
+    }
+    if (typeof query == "string" ? query == "" : query.test(""))
+      query = /x^/;
+    return query;
+  }
+
+  function startSearch(cm, state, query) {
+    state.queryText = query;
+    state.query = parseQuery(query);
+    cm.removeOverlay(state.overlay, queryCaseInsensitive(state.query));
+    state.overlay = searchOverlay(state.query, queryCaseInsensitive(state.query));
+    cm.addOverlay(state.overlay);
+    if (cm.showMatchesOnScrollbar) {
+      if (state.annotate) { state.annotate.clear(); state.annotate = null; }
+      state.annotate = cm.showMatchesOnScrollbar(state.query, queryCaseInsensitive(state.query));
+    }
+  }
+
+  function doSearch(cm, rev, persistent, immediate) {
+    var state = getSearchState(cm);
+    if (state.query) return findNext(cm, rev);
+    var q = cm.getSelection() || state.lastQuery;
+    if (q instanceof RegExp && q.source == "x^") q = null
+    if (persistent && cm.openDialog) {
+      var hiding = null
+      var searchNext = function(query, event) {
+        CodeMirror.e_stop(event);
+        if (!query) return;
+        if (query != state.queryText) {
+          startSearch(cm, state, query);
+          state.posFrom = state.posTo = cm.getCursor();
+        }
+        if (hiding) hiding.style.opacity = 1
+        findNext(cm, event.shiftKey, function(_, to) {
+          var dialog
+          if (to.line < 3 && document.querySelector &&
+              (dialog = cm.display.wrapper.querySelector(".CodeMirror-dialog")) &&
+              dialog.getBoundingClientRect().bottom - 4 > cm.cursorCoords(to, "window").top)
+            (hiding = dialog).style.opacity = .4
+        })
+      };
+      persistentDialog(cm, getQueryDialog(cm), q, searchNext, function(event, query) {
+        var keyName = CodeMirror.keyName(event)
+        var extra = cm.getOption('extraKeys'), cmd = (extra && extra[keyName]) || CodeMirror.keyMap[cm.getOption("keyMap")][keyName]
+        if (cmd == "findNext" || cmd == "findPrev" ||
+          cmd == "findPersistentNext" || cmd == "findPersistentPrev") {
+          CodeMirror.e_stop(event);
+          startSearch(cm, getSearchState(cm), query);
+          cm.execCommand(cmd);
+        } else if (cmd == "find" || cmd == "findPersistent") {
+          CodeMirror.e_stop(event);
+          searchNext(query, event);
+        }
+      });
+      if (immediate && q) {
+        startSearch(cm, state, q);
+        findNext(cm, rev);
+      }
+    } else {
+      dialog(cm, getQueryDialog(cm), "Search for:", q, function(query) {
+        if (query && !state.query) cm.operation(function() {
+          startSearch(cm, state, query);
+          state.posFrom = state.posTo = cm.getCursor();
+          findNext(cm, rev);
+        });
+      });
+    }
+  }
+
+  function findNext(cm, rev, callback) {cm.operation(function() {
+    var state = getSearchState(cm);
+    var cursor = getSearchCursor(cm, state.query, rev ? state.posFrom : state.posTo);
+    if (!cursor.find(rev)) {
+      cursor = getSearchCursor(cm, state.query, rev ? CodeMirror.Pos(cm.lastLine()) : CodeMirror.Pos(cm.firstLine(), 0));
+      if (!cursor.find(rev)) return;
+    }
+    cm.setSelection(cursor.from(), cursor.to());
+    cm.scrollIntoView({from: cursor.from(), to: cursor.to()}, 20);
+    state.posFrom = cursor.from(); state.posTo = cursor.to();
+    if (callback) callback(cursor.from(), cursor.to())
+  });}
+
+  function clearSearch(cm) {cm.operation(function() {
+    var state = getSearchState(cm);
+    state.lastQuery = state.query;
+    if (!state.query) return;
+    state.query = state.queryText = null;
+    cm.removeOverlay(state.overlay);
+    if (state.annotate) { state.annotate.clear(); state.annotate = null; }
+  });}
+
+
+  function getQueryDialog(cm)  {
+    return '<span class="CodeMirror-search-label">' + cm.phrase("Search:") + '</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">' + cm.phrase("(Use /re/ syntax for regexp search)") + '</span>';
+  }
+  function getReplaceQueryDialog(cm) {
+    return ' <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">' + cm.phrase("(Use /re/ syntax for regexp search)") + '</span>';
+  }
+  function getReplacementQueryDialog(cm) {
+    return '<span class="CodeMirror-search-label">' + cm.phrase("With:") + '</span> <input type="text" style="width: 10em" class="CodeMirror-search-field"/>';
+  }
+  function getDoReplaceConfirm(cm) {
+    return '<span class="CodeMirror-search-label">' + cm.phrase("Replace?") + '</span> <button>' + cm.phrase("Yes") + '</button> <button>' + cm.phrase("No") + '</button> <button>' + cm.phrase("All") + '</button> <button>' + cm.phrase("Stop") + '</button> ';
+  }
+
+  function replaceAll(cm, query, text) {
+    cm.operation(function() {
+      for (var cursor = getSearchCursor(cm, query); cursor.findNext();) {
+        if (typeof query != "string") {
+          var match = cm.getRange(cursor.from(), cursor.to()).match(query);
+          cursor.replace(text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
+        } else cursor.replace(text);
+      }
+    });
+  }
+
+  function replace(cm, all) {
+    if (cm.getOption("readOnly")) return;
+    var query = cm.getSelection() || getSearchState(cm).lastQuery;
+    var dialogText = '<span class="CodeMirror-search-label">' + (all ? cm.phrase("Replace all:") : cm.phrase("Replace:")) + '</span>';
+    dialog(cm, dialogText + getReplaceQueryDialog(cm), dialogText, query, function(query) {
+      if (!query) return;
+      query = parseQuery(query);
+      dialog(cm, getReplacementQueryDialog(cm), cm.phrase("Replace with:"), "", function(text) {
+        text = parseString(text)
+        if (all) {
+          replaceAll(cm, query, text)
+        } else {
+          clearSearch(cm);
+          var cursor = getSearchCursor(cm, query, cm.getCursor("from"));
+          var advance = function() {
+            var start = cursor.from(), match;
+            if (!(match = cursor.findNext())) {
+              cursor = getSearchCursor(cm, query);
+              if (!(match = cursor.findNext()) ||
+                  (start && cursor.from().line == start.line && cursor.from().ch == start.ch)) return;
+            }
+            cm.setSelection(cursor.from(), cursor.to());
+            cm.scrollIntoView({from: cursor.from(), to: cursor.to()});
+            confirmDialog(cm, getDoReplaceConfirm(cm), cm.phrase("Replace?"),
+                          [function() {doReplace(match);}, advance,
+                           function() {replaceAll(cm, query, text)}]);
+          };
+          var doReplace = function(match) {
+            cursor.replace(typeof query == "string" ? text :
+                           text.replace(/\$(\d)/g, function(_, i) {return match[i];}));
+            advance();
+          };
+          advance();
+        }
+      });
+    });
+  }
+
+  CodeMirror.commands.find = function(cm) {clearSearch(cm); doSearch(cm);};
+  CodeMirror.commands.findPersistent = function(cm) {clearSearch(cm); doSearch(cm, false, true);};
+  CodeMirror.commands.findPersistentNext = function(cm) {doSearch(cm, false, true, true);};
+  CodeMirror.commands.findPersistentPrev = function(cm) {doSearch(cm, true, true, true);};
+  CodeMirror.commands.findNext = doSearch;
+  CodeMirror.commands.findPrev = function(cm) {doSearch(cm, true);};
+  CodeMirror.commands.clearSearch = clearSearch;
+  CodeMirror.commands.replace = replace;
+  CodeMirror.commands.replaceAll = function(cm) {replace(cm, true);};
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/search/searchcursor.js

@@ -0,0 +1,296 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"))
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod)
+  else // Plain browser env
+    mod(CodeMirror)
+})(function(CodeMirror) {
+  "use strict"
+  var Pos = CodeMirror.Pos
+
+  function regexpFlags(regexp) {
+    var flags = regexp.flags
+    return flags != null ? flags : (regexp.ignoreCase ? "i" : "")
+      + (regexp.global ? "g" : "")
+      + (regexp.multiline ? "m" : "")
+  }
+
+  function ensureFlags(regexp, flags) {
+    var current = regexpFlags(regexp), target = current
+    for (var i = 0; i < flags.length; i++) if (target.indexOf(flags.charAt(i)) == -1)
+      target += flags.charAt(i)
+    return current == target ? regexp : new RegExp(regexp.source, target)
+  }
+
+  function maybeMultiline(regexp) {
+    return /\\s|\\n|\n|\\W|\\D|\[\^/.test(regexp.source)
+  }
+
+  function searchRegexpForward(doc, regexp, start) {
+    regexp = ensureFlags(regexp, "g")
+    for (var line = start.line, ch = start.ch, last = doc.lastLine(); line <= last; line++, ch = 0) {
+      regexp.lastIndex = ch
+      var string = doc.getLine(line), match = regexp.exec(string)
+      if (match)
+        return {from: Pos(line, match.index),
+                to: Pos(line, match.index + match[0].length),
+                match: match}
+    }
+  }
+
+  function searchRegexpForwardMultiline(doc, regexp, start) {
+    if (!maybeMultiline(regexp)) return searchRegexpForward(doc, regexp, start)
+
+    regexp = ensureFlags(regexp, "gm")
+    var string, chunk = 1
+    for (var line = start.line, last = doc.lastLine(); line <= last;) {
+      // This grows the search buffer in exponentially-sized chunks
+      // between matches, so that nearby matches are fast and don't
+      // require concatenating the whole document (in case we're
+      // searching for something that has tons of matches), but at the
+      // same time, the amount of retries is limited.
+      for (var i = 0; i < chunk; i++) {
+        if (line > last) break
+        var curLine = doc.getLine(line++)
+        string = string == null ? curLine : string + "\n" + curLine
+      }
+      chunk = chunk * 2
+      regexp.lastIndex = start.ch
+      var match = regexp.exec(string)
+      if (match) {
+        var before = string.slice(0, match.index).split("\n"), inside = match[0].split("\n")
+        var startLine = start.line + before.length - 1, startCh = before[before.length - 1].length
+        return {from: Pos(startLine, startCh),
+                to: Pos(startLine + inside.length - 1,
+                        inside.length == 1 ? startCh + inside[0].length : inside[inside.length - 1].length),
+                match: match}
+      }
+    }
+  }
+
+  function lastMatchIn(string, regexp, endMargin) {
+    var match, from = 0
+    while (from <= string.length) {
+      regexp.lastIndex = from
+      var newMatch = regexp.exec(string)
+      if (!newMatch) break
+      var end = newMatch.index + newMatch[0].length
+      if (end > string.length - endMargin) break
+      if (!match || end > match.index + match[0].length)
+        match = newMatch
+      from = newMatch.index + 1
+    }
+    return match
+  }
+
+  function searchRegexpBackward(doc, regexp, start) {
+    regexp = ensureFlags(regexp, "g")
+    for (var line = start.line, ch = start.ch, first = doc.firstLine(); line >= first; line--, ch = -1) {
+      var string = doc.getLine(line)
+      var match = lastMatchIn(string, regexp, ch < 0 ? 0 : string.length - ch)
+      if (match)
+        return {from: Pos(line, match.index),
+                to: Pos(line, match.index + match[0].length),
+                match: match}
+    }
+  }
+
+  function searchRegexpBackwardMultiline(doc, regexp, start) {
+    if (!maybeMultiline(regexp)) return searchRegexpBackward(doc, regexp, start)
+    regexp = ensureFlags(regexp, "gm")
+    var string, chunkSize = 1, endMargin = doc.getLine(start.line).length - start.ch
+    for (var line = start.line, first = doc.firstLine(); line >= first;) {
+      for (var i = 0; i < chunkSize && line >= first; i++) {
+        var curLine = doc.getLine(line--)
+        string = string == null ? curLine : curLine + "\n" + string
+      }
+      chunkSize *= 2
+
+      var match = lastMatchIn(string, regexp, endMargin)
+      if (match) {
+        var before = string.slice(0, match.index).split("\n"), inside = match[0].split("\n")
+        var startLine = line + before.length, startCh = before[before.length - 1].length
+        return {from: Pos(startLine, startCh),
+                to: Pos(startLine + inside.length - 1,
+                        inside.length == 1 ? startCh + inside[0].length : inside[inside.length - 1].length),
+                match: match}
+      }
+    }
+  }
+
+  var doFold, noFold
+  if (String.prototype.normalize) {
+    doFold = function(str) { return str.normalize("NFD").toLowerCase() }
+    noFold = function(str) { return str.normalize("NFD") }
+  } else {
+    doFold = function(str) { return str.toLowerCase() }
+    noFold = function(str) { return str }
+  }
+
+  // Maps a position in a case-folded line back to a position in the original line
+  // (compensating for codepoints increasing in number during folding)
+  function adjustPos(orig, folded, pos, foldFunc) {
+    if (orig.length == folded.length) return pos
+    for (var min = 0, max = pos + Math.max(0, orig.length - folded.length);;) {
+      if (min == max) return min
+      var mid = (min + max) >> 1
+      var len = foldFunc(orig.slice(0, mid)).length
+      if (len == pos) return mid
+      else if (len > pos) max = mid
+      else min = mid + 1
+    }
+  }
+
+  function searchStringForward(doc, query, start, caseFold) {
+    // Empty string would match anything and never progress, so we
+    // define it to match nothing instead.
+    if (!query.length) return null
+    var fold = caseFold ? doFold : noFold
+    var lines = fold(query).split(/\r|\n\r?/)
+
+    search: for (var line = start.line, ch = start.ch, last = doc.lastLine() + 1 - lines.length; line <= last; line++, ch = 0) {
+      var orig = doc.getLine(line).slice(ch), string = fold(orig)
+      if (lines.length == 1) {
+        var found = string.indexOf(lines[0])
+        if (found == -1) continue search
+        var start = adjustPos(orig, string, found, fold) + ch
+        return {from: Pos(line, adjustPos(orig, string, found, fold) + ch),
+                to: Pos(line, adjustPos(orig, string, found + lines[0].length, fold) + ch)}
+      } else {
+        var cutFrom = string.length - lines[0].length
+        if (string.slice(cutFrom) != lines[0]) continue search
+        for (var i = 1; i < lines.length - 1; i++)
+          if (fold(doc.getLine(line + i)) != lines[i]) continue search
+        var end = doc.getLine(line + lines.length - 1), endString = fold(end), lastLine = lines[lines.length - 1]
+        if (endString.slice(0, lastLine.length) != lastLine) continue search
+        return {from: Pos(line, adjustPos(orig, string, cutFrom, fold) + ch),
+                to: Pos(line + lines.length - 1, adjustPos(end, endString, lastLine.length, fold))}
+      }
+    }
+  }
+
+  function searchStringBackward(doc, query, start, caseFold) {
+    if (!query.length) return null
+    var fold = caseFold ? doFold : noFold
+    var lines = fold(query).split(/\r|\n\r?/)
+
+    search: for (var line = start.line, ch = start.ch, first = doc.firstLine() - 1 + lines.length; line >= first; line--, ch = -1) {
+      var orig = doc.getLine(line)
+      if (ch > -1) orig = orig.slice(0, ch)
+      var string = fold(orig)
+      if (lines.length == 1) {
+        var found = string.lastIndexOf(lines[0])
+        if (found == -1) continue search
+        return {from: Pos(line, adjustPos(orig, string, found, fold)),
+                to: Pos(line, adjustPos(orig, string, found + lines[0].length, fold))}
+      } else {
+        var lastLine = lines[lines.length - 1]
+        if (string.slice(0, lastLine.length) != lastLine) continue search
+        for (var i = 1, start = line - lines.length + 1; i < lines.length - 1; i++)
+          if (fold(doc.getLine(start + i)) != lines[i]) continue search
+        var top = doc.getLine(line + 1 - lines.length), topString = fold(top)
+        if (topString.slice(topString.length - lines[0].length) != lines[0]) continue search
+        return {from: Pos(line + 1 - lines.length, adjustPos(top, topString, top.length - lines[0].length, fold)),
+                to: Pos(line, adjustPos(orig, string, lastLine.length, fold))}
+      }
+    }
+  }
+
+  function SearchCursor(doc, query, pos, options) {
+    this.atOccurrence = false
+    this.doc = doc
+    pos = pos ? doc.clipPos(pos) : Pos(0, 0)
+    this.pos = {from: pos, to: pos}
+
+    var caseFold
+    if (typeof options == "object") {
+      caseFold = options.caseFold
+    } else { // Backwards compat for when caseFold was the 4th argument
+      caseFold = options
+      options = null
+    }
+
+    if (typeof query == "string") {
+      if (caseFold == null) caseFold = false
+      this.matches = function(reverse, pos) {
+        return (reverse ? searchStringBackward : searchStringForward)(doc, query, pos, caseFold)
+      }
+    } else {
+      query = ensureFlags(query, "gm")
+      if (!options || options.multiline !== false)
+        this.matches = function(reverse, pos) {
+          return (reverse ? searchRegexpBackwardMultiline : searchRegexpForwardMultiline)(doc, query, pos)
+        }
+      else
+        this.matches = function(reverse, pos) {
+          return (reverse ? searchRegexpBackward : searchRegexpForward)(doc, query, pos)
+        }
+    }
+  }
+
+  SearchCursor.prototype = {
+    findNext: function() {return this.find(false)},
+    findPrevious: function() {return this.find(true)},
+
+    find: function(reverse) {
+      var result = this.matches(reverse, this.doc.clipPos(reverse ? this.pos.from : this.pos.to))
+
+      // Implements weird auto-growing behavior on null-matches for
+      // backwards-compatibility with the vim code (unfortunately)
+      while (result && CodeMirror.cmpPos(result.from, result.to) == 0) {
+        if (reverse) {
+          if (result.from.ch) result.from = Pos(result.from.line, result.from.ch - 1)
+          else if (result.from.line == this.doc.firstLine()) result = null
+          else result = this.matches(reverse, this.doc.clipPos(Pos(result.from.line - 1)))
+        } else {
+          if (result.to.ch < this.doc.getLine(result.to.line).length) result.to = Pos(result.to.line, result.to.ch + 1)
+          else if (result.to.line == this.doc.lastLine()) result = null
+          else result = this.matches(reverse, Pos(result.to.line + 1, 0))
+        }
+      }
+
+      if (result) {
+        this.pos = result
+        this.atOccurrence = true
+        return this.pos.match || true
+      } else {
+        var end = Pos(reverse ? this.doc.firstLine() : this.doc.lastLine() + 1, 0)
+        this.pos = {from: end, to: end}
+        return this.atOccurrence = false
+      }
+    },
+
+    from: function() {if (this.atOccurrence) return this.pos.from},
+    to: function() {if (this.atOccurrence) return this.pos.to},
+
+    replace: function(newText, origin) {
+      if (!this.atOccurrence) return
+      var lines = CodeMirror.splitLines(newText)
+      this.doc.replaceRange(lines, this.pos.from, this.pos.to, origin)
+      this.pos.to = Pos(this.pos.from.line + lines.length - 1,
+                        lines[lines.length - 1].length + (lines.length == 1 ? this.pos.from.ch : 0))
+    }
+  }
+
+  CodeMirror.defineExtension("getSearchCursor", function(query, pos, caseFold) {
+    return new SearchCursor(this.doc, query, pos, caseFold)
+  })
+  CodeMirror.defineDocExtension("getSearchCursor", function(query, pos, caseFold) {
+    return new SearchCursor(this, query, pos, caseFold)
+  })
+
+  CodeMirror.defineExtension("selectMatches", function(query, caseFold) {
+    var ranges = []
+    var cur = this.getSearchCursor(query, this.getCursor("from"), caseFold)
+    while (cur.findNext()) {
+      if (CodeMirror.cmpPos(cur.to(), this.getCursor("to")) > 0) break
+      ranges.push({anchor: cur.from(), head: cur.to()})
+    }
+    if (ranges.length)
+      this.setSelections(ranges, 0)
+  })
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/selection/active-line.js

@@ -0,0 +1,72 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+  var WRAP_CLASS = "CodeMirror-activeline";
+  var BACK_CLASS = "CodeMirror-activeline-background";
+  var GUTT_CLASS = "CodeMirror-activeline-gutter";
+
+  CodeMirror.defineOption("styleActiveLine", false, function(cm, val, old) {
+    var prev = old == CodeMirror.Init ? false : old;
+    if (val == prev) return
+    if (prev) {
+      cm.off("beforeSelectionChange", selectionChange);
+      clearActiveLines(cm);
+      delete cm.state.activeLines;
+    }
+    if (val) {
+      cm.state.activeLines = [];
+      updateActiveLines(cm, cm.listSelections());
+      cm.on("beforeSelectionChange", selectionChange);
+    }
+  });
+
+  function clearActiveLines(cm) {
+    for (var i = 0; i < cm.state.activeLines.length; i++) {
+      cm.removeLineClass(cm.state.activeLines[i], "wrap", WRAP_CLASS);
+      cm.removeLineClass(cm.state.activeLines[i], "background", BACK_CLASS);
+      cm.removeLineClass(cm.state.activeLines[i], "gutter", GUTT_CLASS);
+    }
+  }
+
+  function sameArray(a, b) {
+    if (a.length != b.length) return false;
+    for (var i = 0; i < a.length; i++)
+      if (a[i] != b[i]) return false;
+    return true;
+  }
+
+  function updateActiveLines(cm, ranges) {
+    var active = [];
+    for (var i = 0; i < ranges.length; i++) {
+      var range = ranges[i];
+      var option = cm.getOption("styleActiveLine");
+      if (typeof option == "object" && option.nonEmpty ? range.anchor.line != range.head.line : !range.empty())
+        continue
+      var line = cm.getLineHandleVisualStart(range.head.line);
+      if (active[active.length - 1] != line) active.push(line);
+    }
+    if (sameArray(cm.state.activeLines, active)) return;
+    cm.operation(function() {
+      clearActiveLines(cm);
+      for (var i = 0; i < active.length; i++) {
+        cm.addLineClass(active[i], "wrap", WRAP_CLASS);
+        cm.addLineClass(active[i], "background", BACK_CLASS);
+        cm.addLineClass(active[i], "gutter", GUTT_CLASS);
+      }
+      cm.state.activeLines = active;
+    });
+  }
+
+  function selectionChange(cm, sel) {
+    updateActiveLines(cm, sel.ranges);
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/selection/mark-selection.js

@@ -0,0 +1,119 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Because sometimes you need to mark the selected *text*.
+//
+// Adds an option 'styleSelectedText' which, when enabled, gives
+// selected text the CSS class given as option value, or
+// "CodeMirror-selectedtext" when the value is not a string.
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineOption("styleSelectedText", false, function(cm, val, old) {
+    var prev = old && old != CodeMirror.Init;
+    if (val && !prev) {
+      cm.state.markedSelection = [];
+      cm.state.markedSelectionStyle = typeof val == "string" ? val : "CodeMirror-selectedtext";
+      reset(cm);
+      cm.on("cursorActivity", onCursorActivity);
+      cm.on("change", onChange);
+    } else if (!val && prev) {
+      cm.off("cursorActivity", onCursorActivity);
+      cm.off("change", onChange);
+      clear(cm);
+      cm.state.markedSelection = cm.state.markedSelectionStyle = null;
+    }
+  });
+
+  function onCursorActivity(cm) {
+    if (cm.state.markedSelection)
+      cm.operation(function() { update(cm); });
+  }
+
+  function onChange(cm) {
+    if (cm.state.markedSelection && cm.state.markedSelection.length)
+      cm.operation(function() { clear(cm); });
+  }
+
+  var CHUNK_SIZE = 8;
+  var Pos = CodeMirror.Pos;
+  var cmp = CodeMirror.cmpPos;
+
+  function coverRange(cm, from, to, addAt) {
+    if (cmp(from, to) == 0) return;
+    var array = cm.state.markedSelection;
+    var cls = cm.state.markedSelectionStyle;
+    for (var line = from.line;;) {
+      var start = line == from.line ? from : Pos(line, 0);
+      var endLine = line + CHUNK_SIZE, atEnd = endLine >= to.line;
+      var end = atEnd ? to : Pos(endLine, 0);
+      var mark = cm.markText(start, end, {className: cls});
+      if (addAt == null) array.push(mark);
+      else array.splice(addAt++, 0, mark);
+      if (atEnd) break;
+      line = endLine;
+    }
+  }
+
+  function clear(cm) {
+    var array = cm.state.markedSelection;
+    for (var i = 0; i < array.length; ++i) array[i].clear();
+    array.length = 0;
+  }
+
+  function reset(cm) {
+    clear(cm);
+    var ranges = cm.listSelections();
+    for (var i = 0; i < ranges.length; i++)
+      coverRange(cm, ranges[i].from(), ranges[i].to());
+  }
+
+  function update(cm) {
+    if (!cm.somethingSelected()) return clear(cm);
+    if (cm.listSelections().length > 1) return reset(cm);
+
+    var from = cm.getCursor("start"), to = cm.getCursor("end");
+
+    var array = cm.state.markedSelection;
+    if (!array.length) return coverRange(cm, from, to);
+
+    var coverStart = array[0].find(), coverEnd = array[array.length - 1].find();
+    if (!coverStart || !coverEnd || to.line - from.line <= CHUNK_SIZE ||
+        cmp(from, coverEnd.to) >= 0 || cmp(to, coverStart.from) <= 0)
+      return reset(cm);
+
+    while (cmp(from, coverStart.from) > 0) {
+      array.shift().clear();
+      coverStart = array[0].find();
+    }
+    if (cmp(from, coverStart.from) < 0) {
+      if (coverStart.to.line - from.line < CHUNK_SIZE) {
+        array.shift().clear();
+        coverRange(cm, from, coverStart.to, 0);
+      } else {
+        coverRange(cm, from, coverStart.from, 0);
+      }
+    }
+
+    while (cmp(to, coverEnd.to) < 0) {
+      array.pop().clear();
+      coverEnd = array[array.length - 1].find();
+    }
+    if (cmp(to, coverEnd.to) > 0) {
+      if (to.line - coverEnd.from.line < CHUNK_SIZE) {
+        array.pop().clear();
+        coverRange(cm, coverEnd.from, to);
+      } else {
+        coverRange(cm, coverEnd.to, to);
+      }
+    }
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/selection/selection-pointer.js

@@ -0,0 +1,98 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineOption("selectionPointer", false, function(cm, val) {
+    var data = cm.state.selectionPointer;
+    if (data) {
+      CodeMirror.off(cm.getWrapperElement(), "mousemove", data.mousemove);
+      CodeMirror.off(cm.getWrapperElement(), "mouseout", data.mouseout);
+      CodeMirror.off(window, "scroll", data.windowScroll);
+      cm.off("cursorActivity", reset);
+      cm.off("scroll", reset);
+      cm.state.selectionPointer = null;
+      cm.display.lineDiv.style.cursor = "";
+    }
+    if (val) {
+      data = cm.state.selectionPointer = {
+        value: typeof val == "string" ? val : "default",
+        mousemove: function(event) { mousemove(cm, event); },
+        mouseout: function(event) { mouseout(cm, event); },
+        windowScroll: function() { reset(cm); },
+        rects: null,
+        mouseX: null, mouseY: null,
+        willUpdate: false
+      };
+      CodeMirror.on(cm.getWrapperElement(), "mousemove", data.mousemove);
+      CodeMirror.on(cm.getWrapperElement(), "mouseout", data.mouseout);
+      CodeMirror.on(window, "scroll", data.windowScroll);
+      cm.on("cursorActivity", reset);
+      cm.on("scroll", reset);
+    }
+  });
+
+  function mousemove(cm, event) {
+    var data = cm.state.selectionPointer;
+    if (event.buttons == null ? event.which : event.buttons) {
+      data.mouseX = data.mouseY = null;
+    } else {
+      data.mouseX = event.clientX;
+      data.mouseY = event.clientY;
+    }
+    scheduleUpdate(cm);
+  }
+
+  function mouseout(cm, event) {
+    if (!cm.getWrapperElement().contains(event.relatedTarget)) {
+      var data = cm.state.selectionPointer;
+      data.mouseX = data.mouseY = null;
+      scheduleUpdate(cm);
+    }
+  }
+
+  function reset(cm) {
+    cm.state.selectionPointer.rects = null;
+    scheduleUpdate(cm);
+  }
+
+  function scheduleUpdate(cm) {
+    if (!cm.state.selectionPointer.willUpdate) {
+      cm.state.selectionPointer.willUpdate = true;
+      setTimeout(function() {
+        update(cm);
+        cm.state.selectionPointer.willUpdate = false;
+      }, 50);
+    }
+  }
+
+  function update(cm) {
+    var data = cm.state.selectionPointer;
+    if (!data) return;
+    if (data.rects == null && data.mouseX != null) {
+      data.rects = [];
+      if (cm.somethingSelected()) {
+        for (var sel = cm.display.selectionDiv.firstChild; sel; sel = sel.nextSibling)
+          data.rects.push(sel.getBoundingClientRect());
+      }
+    }
+    var inside = false;
+    if (data.mouseX != null) for (var i = 0; i < data.rects.length; i++) {
+      var rect = data.rects[i];
+      if (rect.left <= data.mouseX && rect.right >= data.mouseX &&
+          rect.top <= data.mouseY && rect.bottom >= data.mouseY)
+        inside = true;
+    }
+    var cursor = inside ? data.value : "";
+    if (cm.display.lineDiv.style.cursor != cursor)
+      cm.display.lineDiv.style.cursor = cursor;
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/tern/tern.css

@@ -0,0 +1,87 @@
+.CodeMirror-Tern-completion {
+  padding-left: 22px;
+  position: relative;
+  line-height: 1.5;
+}
+.CodeMirror-Tern-completion:before {
+  position: absolute;
+  left: 2px;
+  bottom: 2px;
+  border-radius: 50%;
+  font-size: 12px;
+  font-weight: bold;
+  height: 15px;
+  width: 15px;
+  line-height: 16px;
+  text-align: center;
+  color: white;
+  -moz-box-sizing: border-box;
+  box-sizing: border-box;
+}
+.CodeMirror-Tern-completion-unknown:before {
+  content: "?";
+  background: #4bb;
+}
+.CodeMirror-Tern-completion-object:before {
+  content: "O";
+  background: #77c;
+}
+.CodeMirror-Tern-completion-fn:before {
+  content: "F";
+  background: #7c7;
+}
+.CodeMirror-Tern-completion-array:before {
+  content: "A";
+  background: #c66;
+}
+.CodeMirror-Tern-completion-number:before {
+  content: "1";
+  background: #999;
+}
+.CodeMirror-Tern-completion-string:before {
+  content: "S";
+  background: #999;
+}
+.CodeMirror-Tern-completion-bool:before {
+  content: "B";
+  background: #999;
+}
+
+.CodeMirror-Tern-completion-guess {
+  color: #999;
+}
+
+.CodeMirror-Tern-tooltip {
+  border: 1px solid silver;
+  border-radius: 3px;
+  color: #444;
+  padding: 2px 5px;
+  font-size: 90%;
+  font-family: monospace;
+  background-color: white;
+  white-space: pre-wrap;
+
+  max-width: 40em;
+  position: absolute;
+  z-index: 10;
+  -webkit-box-shadow: 2px 3px 5px rgba(0,0,0,.2);
+  -moz-box-shadow: 2px 3px 5px rgba(0,0,0,.2);
+  box-shadow: 2px 3px 5px rgba(0,0,0,.2);
+
+  transition: opacity 1s;
+  -moz-transition: opacity 1s;
+  -webkit-transition: opacity 1s;
+  -o-transition: opacity 1s;
+  -ms-transition: opacity 1s;
+}
+
+.CodeMirror-Tern-hint-doc {
+  max-width: 25em;
+  margin-top: -3px;
+}
+
+.CodeMirror-Tern-fname { color: black; }
+.CodeMirror-Tern-farg { color: #70a; }
+.CodeMirror-Tern-farg-current { text-decoration: underline; }
+.CodeMirror-Tern-type { color: #07c; }
+.CodeMirror-Tern-fhint-guess { opacity: .7; }

venv/Lib/site-packages/notebook/static/components/codemirror/addon/tern/tern.js

@@ -0,0 +1,719 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// Glue code between CodeMirror and Tern.
+//
+// Create a CodeMirror.TernServer to wrap an actual Tern server,
+// register open documents (CodeMirror.Doc instances) with it, and
+// call its methods to activate the assisting functions that Tern
+// provides.
+//
+// Options supported (all optional):
+// * defs: An array of JSON definition data structures.
+// * plugins: An object mapping plugin names to configuration
+//   options.
+// * getFile: A function(name, c) that can be used to access files in
+//   the project that haven't been loaded yet. Simply do c(null) to
+//   indicate that a file is not available.
+// * fileFilter: A function(value, docName, doc) that will be applied
+//   to documents before passing them on to Tern.
+// * switchToDoc: A function(name, doc) that should, when providing a
+//   multi-file view, switch the view or focus to the named file.
+// * showError: A function(editor, message) that can be used to
+//   override the way errors are displayed.
+// * completionTip: Customize the content in tooltips for completions.
+//   Is passed a single argument—the completion's data as returned by
+//   Tern—and may return a string, DOM node, or null to indicate that
+//   no tip should be shown. By default the docstring is shown.
+// * typeTip: Like completionTip, but for the tooltips shown for type
+//   queries.
+// * responseFilter: A function(doc, query, request, error, data) that
+//   will be applied to the Tern responses before treating them
+//
+//
+// It is possible to run the Tern server in a web worker by specifying
+// these additional options:
+// * useWorker: Set to true to enable web worker mode. You'll probably
+//   want to feature detect the actual value you use here, for example
+//   !!window.Worker.
+// * workerScript: The main script of the worker. Point this to
+//   wherever you are hosting worker.js from this directory.
+// * workerDeps: An array of paths pointing (relative to workerScript)
+//   to the Acorn and Tern libraries and any Tern plugins you want to
+//   load. Or, if you minified those into a single script and included
+//   them in the workerScript, simply leave this undefined.
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+  // declare global: tern
+
+  CodeMirror.TernServer = function(options) {
+    var self = this;
+    this.options = options || {};
+    var plugins = this.options.plugins || (this.options.plugins = {});
+    if (!plugins.doc_comment) plugins.doc_comment = true;
+    this.docs = Object.create(null);
+    if (this.options.useWorker) {
+      this.server = new WorkerServer(this);
+    } else {
+      this.server = new tern.Server({
+        getFile: function(name, c) { return getFile(self, name, c); },
+        async: true,
+        defs: this.options.defs || [],
+        plugins: plugins
+      });
+    }
+    this.trackChange = function(doc, change) { trackChange(self, doc, change); };
+
+    this.cachedArgHints = null;
+    this.activeArgHints = null;
+    this.jumpStack = [];
+
+    this.getHint = function(cm, c) { return hint(self, cm, c); };
+    this.getHint.async = true;
+  };
+
+  CodeMirror.TernServer.prototype = {
+    addDoc: function(name, doc) {
+      var data = {doc: doc, name: name, changed: null};
+      this.server.addFile(name, docValue(this, data));
+      CodeMirror.on(doc, "change", this.trackChange);
+      return this.docs[name] = data;
+    },
+
+    delDoc: function(id) {
+      var found = resolveDoc(this, id);
+      if (!found) return;
+      CodeMirror.off(found.doc, "change", this.trackChange);
+      delete this.docs[found.name];
+      this.server.delFile(found.name);
+    },
+
+    hideDoc: function(id) {
+      closeArgHints(this);
+      var found = resolveDoc(this, id);
+      if (found && found.changed) sendDoc(this, found);
+    },
+
+    complete: function(cm) {
+      cm.showHint({hint: this.getHint});
+    },
+
+    showType: function(cm, pos, c) { showContextInfo(this, cm, pos, "type", c); },
+
+    showDocs: function(cm, pos, c) { showContextInfo(this, cm, pos, "documentation", c); },
+
+    updateArgHints: function(cm) { updateArgHints(this, cm); },
+
+    jumpToDef: function(cm) { jumpToDef(this, cm); },
+
+    jumpBack: function(cm) { jumpBack(this, cm); },
+
+    rename: function(cm) { rename(this, cm); },
+
+    selectName: function(cm) { selectName(this, cm); },
+
+    request: function (cm, query, c, pos) {
+      var self = this;
+      var doc = findDoc(this, cm.getDoc());
+      var request = buildRequest(this, doc, query, pos);
+      var extraOptions = request.query && this.options.queryOptions && this.options.queryOptions[request.query.type]
+      if (extraOptions) for (var prop in extraOptions) request.query[prop] = extraOptions[prop];
+
+      this.server.request(request, function (error, data) {
+        if (!error && self.options.responseFilter)
+          data = self.options.responseFilter(doc, query, request, error, data);
+        c(error, data);
+      });
+    },
+
+    destroy: function () {
+      closeArgHints(this)
+      if (this.worker) {
+        this.worker.terminate();
+        this.worker = null;
+      }
+    }
+  };
+
+  var Pos = CodeMirror.Pos;
+  var cls = "CodeMirror-Tern-";
+  var bigDoc = 250;
+
+  function getFile(ts, name, c) {
+    var buf = ts.docs[name];
+    if (buf)
+      c(docValue(ts, buf));
+    else if (ts.options.getFile)
+      ts.options.getFile(name, c);
+    else
+      c(null);
+  }
+
+  function findDoc(ts, doc, name) {
+    for (var n in ts.docs) {
+      var cur = ts.docs[n];
+      if (cur.doc == doc) return cur;
+    }
+    if (!name) for (var i = 0;; ++i) {
+      n = "[doc" + (i || "") + "]";
+      if (!ts.docs[n]) { name = n; break; }
+    }
+    return ts.addDoc(name, doc);
+  }
+
+  function resolveDoc(ts, id) {
+    if (typeof id == "string") return ts.docs[id];
+    if (id instanceof CodeMirror) id = id.getDoc();
+    if (id instanceof CodeMirror.Doc) return findDoc(ts, id);
+  }
+
+  function trackChange(ts, doc, change) {
+    var data = findDoc(ts, doc);
+
+    var argHints = ts.cachedArgHints;
+    if (argHints && argHints.doc == doc && cmpPos(argHints.start, change.to) >= 0)
+      ts.cachedArgHints = null;
+
+    var changed = data.changed;
+    if (changed == null)
+      data.changed = changed = {from: change.from.line, to: change.from.line};
+    var end = change.from.line + (change.text.length - 1);
+    if (change.from.line < changed.to) changed.to = changed.to - (change.to.line - end);
+    if (end >= changed.to) changed.to = end + 1;
+    if (changed.from > change.from.line) changed.from = change.from.line;
+
+    if (doc.lineCount() > bigDoc && change.to - changed.from > 100) setTimeout(function() {
+      if (data.changed && data.changed.to - data.changed.from > 100) sendDoc(ts, data);
+    }, 200);
+  }
+
+  function sendDoc(ts, doc) {
+    ts.server.request({files: [{type: "full", name: doc.name, text: docValue(ts, doc)}]}, function(error) {
+      if (error) window.console.error(error);
+      else doc.changed = null;
+    });
+  }
+
+  // Completion
+
+  function hint(ts, cm, c) {
+    ts.request(cm, {type: "completions", types: true, docs: true, urls: true}, function(error, data) {
+      if (error) return showError(ts, cm, error);
+      var completions = [], after = "";
+      var from = data.start, to = data.end;
+      if (cm.getRange(Pos(from.line, from.ch - 2), from) == "[\"" &&
+          cm.getRange(to, Pos(to.line, to.ch + 2)) != "\"]")
+        after = "\"]";
+
+      for (var i = 0; i < data.completions.length; ++i) {
+        var completion = data.completions[i], className = typeToIcon(completion.type);
+        if (data.guess) className += " " + cls + "guess";
+        completions.push({text: completion.name + after,
+                          displayText: completion.displayName || completion.name,
+                          className: className,
+                          data: completion});
+      }
+
+      var obj = {from: from, to: to, list: completions};
+      var tooltip = null;
+      CodeMirror.on(obj, "close", function() { remove(tooltip); });
+      CodeMirror.on(obj, "update", function() { remove(tooltip); });
+      CodeMirror.on(obj, "select", function(cur, node) {
+        remove(tooltip);
+        var content = ts.options.completionTip ? ts.options.completionTip(cur.data) : cur.data.doc;
+        if (content) {
+          tooltip = makeTooltip(node.parentNode.getBoundingClientRect().right + window.pageXOffset,
+                                node.getBoundingClientRect().top + window.pageYOffset, content, cm);
+          tooltip.className += " " + cls + "hint-doc";
+        }
+      });
+      c(obj);
+    });
+  }
+
+  function typeToIcon(type) {
+    var suffix;
+    if (type == "?") suffix = "unknown";
+    else if (type == "number" || type == "string" || type == "bool") suffix = type;
+    else if (/^fn\(/.test(type)) suffix = "fn";
+    else if (/^\[/.test(type)) suffix = "array";
+    else suffix = "object";
+    return cls + "completion " + cls + "completion-" + suffix;
+  }
+
+  // Type queries
+
+  function showContextInfo(ts, cm, pos, queryName, c) {
+    ts.request(cm, queryName, function(error, data) {
+      if (error) return showError(ts, cm, error);
+      if (ts.options.typeTip) {
+        var tip = ts.options.typeTip(data);
+      } else {
+        var tip = elt("span", null, elt("strong", null, data.type || "not found"));
+        if (data.doc)
+          tip.appendChild(document.createTextNode(" — " + data.doc));
+        if (data.url) {
+          tip.appendChild(document.createTextNode(" "));
+          var child = tip.appendChild(elt("a", null, "[docs]"));
+          child.href = data.url;
+          child.target = "_blank";
+        }
+      }
+      tempTooltip(cm, tip, ts);
+      if (c) c();
+    }, pos);
+  }
+
+  // Maintaining argument hints
+
+  function updateArgHints(ts, cm) {
+    closeArgHints(ts);
+
+    if (cm.somethingSelected()) return;
+    var state = cm.getTokenAt(cm.getCursor()).state;
+    var inner = CodeMirror.innerMode(cm.getMode(), state);
+    if (inner.mode.name != "javascript") return;
+    var lex = inner.state.lexical;
+    if (lex.info != "call") return;
+
+    var ch, argPos = lex.pos || 0, tabSize = cm.getOption("tabSize");
+    for (var line = cm.getCursor().line, e = Math.max(0, line - 9), found = false; line >= e; --line) {
+      var str = cm.getLine(line), extra = 0;
+      for (var pos = 0;;) {
+        var tab = str.indexOf("\t", pos);
+        if (tab == -1) break;
+        extra += tabSize - (tab + extra) % tabSize - 1;
+        pos = tab + 1;
+      }
+      ch = lex.column - extra;
+      if (str.charAt(ch) == "(") {found = true; break;}
+    }
+    if (!found) return;
+
+    var start = Pos(line, ch);
+    var cache = ts.cachedArgHints;
+    if (cache && cache.doc == cm.getDoc() && cmpPos(start, cache.start) == 0)
+      return showArgHints(ts, cm, argPos);
+
+    ts.request(cm, {type: "type", preferFunction: true, end: start}, function(error, data) {
+      if (error || !data.type || !(/^fn\(/).test(data.type)) return;
+      ts.cachedArgHints = {
+        start: start,
+        type: parseFnType(data.type),
+        name: data.exprName || data.name || "fn",
+        guess: data.guess,
+        doc: cm.getDoc()
+      };
+      showArgHints(ts, cm, argPos);
+    });
+  }
+
+  function showArgHints(ts, cm, pos) {
+    closeArgHints(ts);
+
+    var cache = ts.cachedArgHints, tp = cache.type;
+    var tip = elt("span", cache.guess ? cls + "fhint-guess" : null,
+                  elt("span", cls + "fname", cache.name), "(");
+    for (var i = 0; i < tp.args.length; ++i) {
+      if (i) tip.appendChild(document.createTextNode(", "));
+      var arg = tp.args[i];
+      tip.appendChild(elt("span", cls + "farg" + (i == pos ? " " + cls + "farg-current" : ""), arg.name || "?"));
+      if (arg.type != "?") {
+        tip.appendChild(document.createTextNode(":\u00a0"));
+        tip.appendChild(elt("span", cls + "type", arg.type));
+      }
+    }
+    tip.appendChild(document.createTextNode(tp.rettype ? ") ->\u00a0" : ")"));
+    if (tp.rettype) tip.appendChild(elt("span", cls + "type", tp.rettype));
+    var place = cm.cursorCoords(null, "page");
+    var tooltip = ts.activeArgHints = makeTooltip(place.right + 1, place.bottom, tip, cm)
+    setTimeout(function() {
+      tooltip.clear = onEditorActivity(cm, function() {
+        if (ts.activeArgHints == tooltip) closeArgHints(ts) })
+    }, 20)
+  }
+
+  function parseFnType(text) {
+    var args = [], pos = 3;
+
+    function skipMatching(upto) {
+      var depth = 0, start = pos;
+      for (;;) {
+        var next = text.charAt(pos);
+        if (upto.test(next) && !depth) return text.slice(start, pos);
+        if (/[{\[\(]/.test(next)) ++depth;
+        else if (/[}\]\)]/.test(next)) --depth;
+        ++pos;
+      }
+    }
+
+    // Parse arguments
+    if (text.charAt(pos) != ")") for (;;) {
+      var name = text.slice(pos).match(/^([^, \(\[\{]+): /);
+      if (name) {
+        pos += name[0].length;
+        name = name[1];
+      }
+      args.push({name: name, type: skipMatching(/[\),]/)});
+      if (text.charAt(pos) == ")") break;
+      pos += 2;
+    }
+
+    var rettype = text.slice(pos).match(/^\) -> (.*)$/);
+
+    return {args: args, rettype: rettype && rettype[1]};
+  }
+
+  // Moving to the definition of something
+
+  function jumpToDef(ts, cm) {
+    function inner(varName) {
+      var req = {type: "definition", variable: varName || null};
+      var doc = findDoc(ts, cm.getDoc());
+      ts.server.request(buildRequest(ts, doc, req), function(error, data) {
+        if (error) return showError(ts, cm, error);
+        if (!data.file && data.url) { window.open(data.url); return; }
+
+        if (data.file) {
+          var localDoc = ts.docs[data.file], found;
+          if (localDoc && (found = findContext(localDoc.doc, data))) {
+            ts.jumpStack.push({file: doc.name,
+                               start: cm.getCursor("from"),
+                               end: cm.getCursor("to")});
+            moveTo(ts, doc, localDoc, found.start, found.end);
+            return;
+          }
+        }
+        showError(ts, cm, "Could not find a definition.");
+      });
+    }
+
+    if (!atInterestingExpression(cm))
+      dialog(cm, "Jump to variable", function(name) { if (name) inner(name); });
+    else
+      inner();
+  }
+
+  function jumpBack(ts, cm) {
+    var pos = ts.jumpStack.pop(), doc = pos && ts.docs[pos.file];
+    if (!doc) return;
+    moveTo(ts, findDoc(ts, cm.getDoc()), doc, pos.start, pos.end);
+  }
+
+  function moveTo(ts, curDoc, doc, start, end) {
+    doc.doc.setSelection(start, end);
+    if (curDoc != doc && ts.options.switchToDoc) {
+      closeArgHints(ts);
+      ts.options.switchToDoc(doc.name, doc.doc);
+    }
+  }
+
+  // The {line,ch} representation of positions makes this rather awkward.
+  function findContext(doc, data) {
+    var before = data.context.slice(0, data.contextOffset).split("\n");
+    var startLine = data.start.line - (before.length - 1);
+    var start = Pos(startLine, (before.length == 1 ? data.start.ch : doc.getLine(startLine).length) - before[0].length);
+
+    var text = doc.getLine(startLine).slice(start.ch);
+    for (var cur = startLine + 1; cur < doc.lineCount() && text.length < data.context.length; ++cur)
+      text += "\n" + doc.getLine(cur);
+    if (text.slice(0, data.context.length) == data.context) return data;
+
+    var cursor = doc.getSearchCursor(data.context, 0, false);
+    var nearest, nearestDist = Infinity;
+    while (cursor.findNext()) {
+      var from = cursor.from(), dist = Math.abs(from.line - start.line) * 10000;
+      if (!dist) dist = Math.abs(from.ch - start.ch);
+      if (dist < nearestDist) { nearest = from; nearestDist = dist; }
+    }
+    if (!nearest) return null;
+
+    if (before.length == 1)
+      nearest.ch += before[0].length;
+    else
+      nearest = Pos(nearest.line + (before.length - 1), before[before.length - 1].length);
+    if (data.start.line == data.end.line)
+      var end = Pos(nearest.line, nearest.ch + (data.end.ch - data.start.ch));
+    else
+      var end = Pos(nearest.line + (data.end.line - data.start.line), data.end.ch);
+    return {start: nearest, end: end};
+  }
+
+  function atInterestingExpression(cm) {
+    var pos = cm.getCursor("end"), tok = cm.getTokenAt(pos);
+    if (tok.start < pos.ch && tok.type == "comment") return false;
+    return /[\w)\]]/.test(cm.getLine(pos.line).slice(Math.max(pos.ch - 1, 0), pos.ch + 1));
+  }
+
+  // Variable renaming
+
+  function rename(ts, cm) {
+    var token = cm.getTokenAt(cm.getCursor());
+    if (!/\w/.test(token.string)) return showError(ts, cm, "Not at a variable");
+    dialog(cm, "New name for " + token.string, function(newName) {
+      ts.request(cm, {type: "rename", newName: newName, fullDocs: true}, function(error, data) {
+        if (error) return showError(ts, cm, error);
+        applyChanges(ts, data.changes);
+      });
+    });
+  }
+
+  function selectName(ts, cm) {
+    var name = findDoc(ts, cm.doc).name;
+    ts.request(cm, {type: "refs"}, function(error, data) {
+      if (error) return showError(ts, cm, error);
+      var ranges = [], cur = 0;
+      var curPos = cm.getCursor();
+      for (var i = 0; i < data.refs.length; i++) {
+        var ref = data.refs[i];
+        if (ref.file == name) {
+          ranges.push({anchor: ref.start, head: ref.end});
+          if (cmpPos(curPos, ref.start) >= 0 && cmpPos(curPos, ref.end) <= 0)
+            cur = ranges.length - 1;
+        }
+      }
+      cm.setSelections(ranges, cur);
+    });
+  }
+
+  var nextChangeOrig = 0;
+  function applyChanges(ts, changes) {
+    var perFile = Object.create(null);
+    for (var i = 0; i < changes.length; ++i) {
+      var ch = changes[i];
+      (perFile[ch.file] || (perFile[ch.file] = [])).push(ch);
+    }
+    for (var file in perFile) {
+      var known = ts.docs[file], chs = perFile[file];;
+      if (!known) continue;
+      chs.sort(function(a, b) { return cmpPos(b.start, a.start); });
+      var origin = "*rename" + (++nextChangeOrig);
+      for (var i = 0; i < chs.length; ++i) {
+        var ch = chs[i];
+        known.doc.replaceRange(ch.text, ch.start, ch.end, origin);
+      }
+    }
+  }
+
+  // Generic request-building helper
+
+  function buildRequest(ts, doc, query, pos) {
+    var files = [], offsetLines = 0, allowFragments = !query.fullDocs;
+    if (!allowFragments) delete query.fullDocs;
+    if (typeof query == "string") query = {type: query};
+    query.lineCharPositions = true;
+    if (query.end == null) {
+      query.end = pos || doc.doc.getCursor("end");
+      if (doc.doc.somethingSelected())
+        query.start = doc.doc.getCursor("start");
+    }
+    var startPos = query.start || query.end;
+
+    if (doc.changed) {
+      if (doc.doc.lineCount() > bigDoc && allowFragments !== false &&
+          doc.changed.to - doc.changed.from < 100 &&
+          doc.changed.from <= startPos.line && doc.changed.to > query.end.line) {
+        files.push(getFragmentAround(doc, startPos, query.end));
+        query.file = "#0";
+        var offsetLines = files[0].offsetLines;
+        if (query.start != null) query.start = Pos(query.start.line - -offsetLines, query.start.ch);
+        query.end = Pos(query.end.line - offsetLines, query.end.ch);
+      } else {
+        files.push({type: "full",
+                    name: doc.name,
+                    text: docValue(ts, doc)});
+        query.file = doc.name;
+        doc.changed = null;
+      }
+    } else {
+      query.file = doc.name;
+    }
+    for (var name in ts.docs) {
+      var cur = ts.docs[name];
+      if (cur.changed && cur != doc) {
+        files.push({type: "full", name: cur.name, text: docValue(ts, cur)});
+        cur.changed = null;
+      }
+    }
+
+    return {query: query, files: files};
+  }
+
+  function getFragmentAround(data, start, end) {
+    var doc = data.doc;
+    var minIndent = null, minLine = null, endLine, tabSize = 4;
+    for (var p = start.line - 1, min = Math.max(0, p - 50); p >= min; --p) {
+      var line = doc.getLine(p), fn = line.search(/\bfunction\b/);
+      if (fn < 0) continue;
+      var indent = CodeMirror.countColumn(line, null, tabSize);
+      if (minIndent != null && minIndent <= indent) continue;
+      minIndent = indent;
+      minLine = p;
+    }
+    if (minLine == null) minLine = min;
+    var max = Math.min(doc.lastLine(), end.line + 20);
+    if (minIndent == null || minIndent == CodeMirror.countColumn(doc.getLine(start.line), null, tabSize))
+      endLine = max;
+    else for (endLine = end.line + 1; endLine < max; ++endLine) {
+      var indent = CodeMirror.countColumn(doc.getLine(endLine), null, tabSize);
+      if (indent <= minIndent) break;
+    }
+    var from = Pos(minLine, 0);
+
+    return {type: "part",
+            name: data.name,
+            offsetLines: from.line,
+            text: doc.getRange(from, Pos(endLine, end.line == endLine ? null : 0))};
+  }
+
+  // Generic utilities
+
+  var cmpPos = CodeMirror.cmpPos;
+
+  function elt(tagname, cls /*, ... elts*/) {
+    var e = document.createElement(tagname);
+    if (cls) e.className = cls;
+    for (var i = 2; i < arguments.length; ++i) {
+      var elt = arguments[i];
+      if (typeof elt == "string") elt = document.createTextNode(elt);
+      e.appendChild(elt);
+    }
+    return e;
+  }
+
+  function dialog(cm, text, f) {
+    if (cm.openDialog)
+      cm.openDialog(text + ": <input type=text>", f);
+    else
+      f(prompt(text, ""));
+  }
+
+  // Tooltips
+
+  function tempTooltip(cm, content, ts) {
+    if (cm.state.ternTooltip) remove(cm.state.ternTooltip);
+    var where = cm.cursorCoords();
+    var tip = cm.state.ternTooltip = makeTooltip(where.right + 1, where.bottom, content, cm);
+    function maybeClear() {
+      old = true;
+      if (!mouseOnTip) clear();
+    }
+    function clear() {
+      cm.state.ternTooltip = null;
+      if (tip.parentNode) fadeOut(tip)
+      clearActivity()
+    }
+    var mouseOnTip = false, old = false;
+    CodeMirror.on(tip, "mousemove", function() { mouseOnTip = true; });
+    CodeMirror.on(tip, "mouseout", function(e) {
+      var related = e.relatedTarget || e.toElement
+      if (!related || !CodeMirror.contains(tip, related)) {
+        if (old) clear();
+        else mouseOnTip = false;
+      }
+    });
+    setTimeout(maybeClear, ts.options.hintDelay ? ts.options.hintDelay : 1700);
+    var clearActivity = onEditorActivity(cm, clear)
+  }
+
+  function onEditorActivity(cm, f) {
+    cm.on("cursorActivity", f)
+    cm.on("blur", f)
+    cm.on("scroll", f)
+    cm.on("setDoc", f)
+    return function() {
+      cm.off("cursorActivity", f)
+      cm.off("blur", f)
+      cm.off("scroll", f)
+      cm.off("setDoc", f)
+    }
+  }
+
+  function makeTooltip(x, y, content, cm) {
+    var node = elt("div", cls + "tooltip", content);
+    node.style.left = x + "px";
+    node.style.top = y + "px";
+    var container = ((cm.options || {}).hintOptions || {}).container || document.body;
+    container.appendChild(node);
+    return node;
+  }
+
+  function remove(node) {
+    var p = node && node.parentNode;
+    if (p) p.removeChild(node);
+  }
+
+  function fadeOut(tooltip) {
+    tooltip.style.opacity = "0";
+    setTimeout(function() { remove(tooltip); }, 1100);
+  }
+
+  function showError(ts, cm, msg) {
+    if (ts.options.showError)
+      ts.options.showError(cm, msg);
+    else
+      tempTooltip(cm, String(msg), ts);
+  }
+
+  function closeArgHints(ts) {
+    if (ts.activeArgHints) {
+      if (ts.activeArgHints.clear) ts.activeArgHints.clear()
+      remove(ts.activeArgHints)
+      ts.activeArgHints = null
+    }
+  }
+
+  function docValue(ts, doc) {
+    var val = doc.doc.getValue();
+    if (ts.options.fileFilter) val = ts.options.fileFilter(val, doc.name, doc.doc);
+    return val;
+  }
+
+  // Worker wrapper
+
+  function WorkerServer(ts) {
+    var worker = ts.worker = new Worker(ts.options.workerScript);
+    worker.postMessage({type: "init",
+                        defs: ts.options.defs,
+                        plugins: ts.options.plugins,
+                        scripts: ts.options.workerDeps});
+    var msgId = 0, pending = {};
+
+    function send(data, c) {
+      if (c) {
+        data.id = ++msgId;
+        pending[msgId] = c;
+      }
+      worker.postMessage(data);
+    }
+    worker.onmessage = function(e) {
+      var data = e.data;
+      if (data.type == "getFile") {
+        getFile(ts, data.name, function(err, text) {
+          send({type: "getFile", err: String(err), text: text, id: data.id});
+        });
+      } else if (data.type == "debug") {
+        window.console.log(data.message);
+      } else if (data.id && pending[data.id]) {
+        pending[data.id](data.err, data.body);
+        delete pending[data.id];
+      }
+    };
+    worker.onerror = function(e) {
+      for (var id in pending) pending[id](e);
+      pending = {};
+    };
+
+    this.addFile = function(name, text) { send({type: "add", name: name, text: text}); };
+    this.delFile = function(name) { send({type: "del", name: name}); };
+    this.request = function(body, c) { send({type: "req", body: body}, c); };
+  }
+});

venv/Lib/site-packages/notebook/static/components/codemirror/addon/tern/worker.js

@@ -0,0 +1,44 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+// declare global: tern, server
+
+var server;
+
+this.onmessage = function(e) {
+  var data = e.data;
+  switch (data.type) {
+  case "init": return startServer(data.defs, data.plugins, data.scripts);
+  case "add": return server.addFile(data.name, data.text);
+  case "del": return server.delFile(data.name);
+  case "req": return server.request(data.body, function(err, reqData) {
+    postMessage({id: data.id, body: reqData, err: err && String(err)});
+  });
+  case "getFile":
+    var c = pending[data.id];
+    delete pending[data.id];
+    return c(data.err, data.text);
+  default: throw new Error("Unknown message type: " + data.type);
+  }
+};
+
+var nextId = 0, pending = {};
+function getFile(file, c) {
+  postMessage({type: "getFile", name: file, id: ++nextId});
+  pending[nextId] = c;
+}
+
+function startServer(defs, plugins, scripts) {
+  if (scripts) importScripts.apply(null, scripts);
+
+  server = new tern.Server({
+    getFile: getFile,
+    async: true,
+    defs: defs,
+    plugins: plugins
+  });
+}
+
+this.console = {
+  log: function(v) { postMessage({type: "debug", message: v}); }
+};

venv/Lib/site-packages/notebook/static/components/codemirror/addon/wrap/hardwrap.js

@@ -0,0 +1,159 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var Pos = CodeMirror.Pos;
+
+  function findParagraph(cm, pos, options) {
+    var startRE = options.paragraphStart || cm.getHelper(pos, "paragraphStart");
+    for (var start = pos.line, first = cm.firstLine(); start > first; --start) {
+      var line = cm.getLine(start);
+      if (startRE && startRE.test(line)) break;
+      if (!/\S/.test(line)) { ++start; break; }
+    }
+    var endRE = options.paragraphEnd || cm.getHelper(pos, "paragraphEnd");
+    for (var end = pos.line + 1, last = cm.lastLine(); end <= last; ++end) {
+      var line = cm.getLine(end);
+      if (endRE && endRE.test(line)) { ++end; break; }
+      if (!/\S/.test(line)) break;
+    }
+    return {from: start, to: end};
+  }
+
+  function findBreakPoint(text, column, wrapOn, killTrailingSpace, forceBreak) {
+    var at = column
+    while (at < text.length && text.charAt(at) == " ") at++
+    for (; at > 0; --at)
+      if (wrapOn.test(text.slice(at - 1, at + 1))) break;
+
+    if (at == 0 && !forceBreak) {
+      // didn't find a break point before column, in non-forceBreak mode try to
+      // find one after 'column'.
+      for (at = column + 1; at < text.length - 1; ++at) {
+        if (wrapOn.test(text.slice(at - 1, at + 1))) break;
+      }
+    }
+
+    for (var first = true;; first = false) {
+      var endOfText = at;
+      if (killTrailingSpace)
+        while (text.charAt(endOfText - 1) == " ") --endOfText;
+      if (endOfText == 0 && first) at = column;
+      else return {from: endOfText, to: at};
+    }
+  }
+
+  function wrapRange(cm, from, to, options) {
+    from = cm.clipPos(from); to = cm.clipPos(to);
+    var column = options.column || 80;
+    var wrapOn = options.wrapOn || /\s\S|-[^\.\d]/;
+    var forceBreak = options.forceBreak !== false;
+    var killTrailing = options.killTrailingSpace !== false;
+    var changes = [], curLine = "", curNo = from.line;
+    var lines = cm.getRange(from, to, false);
+    if (!lines.length) return null;
+    var leadingSpace = lines[0].match(/^[ \t]*/)[0];
+    if (leadingSpace.length >= column) column = leadingSpace.length + 1
+
+    for (var i = 0; i < lines.length; ++i) {
+      var text = lines[i], oldLen = curLine.length, spaceInserted = 0;
+      if (curLine && text && !wrapOn.test(curLine.charAt(curLine.length - 1) + text.charAt(0))) {
+        curLine += " ";
+        spaceInserted = 1;
+      }
+      var spaceTrimmed = "";
+      if (i) {
+        spaceTrimmed = text.match(/^\s*/)[0];
+        text = text.slice(spaceTrimmed.length);
+      }
+      curLine += text;
+      if (i) {
+        var firstBreak = curLine.length > column && leadingSpace == spaceTrimmed &&
+          findBreakPoint(curLine, column, wrapOn, killTrailing, forceBreak);
+        // If this isn't broken, or is broken at a different point, remove old break
+        if (!firstBreak || firstBreak.from != oldLen || firstBreak.to != oldLen + spaceInserted) {
+          changes.push({text: [spaceInserted ? " " : ""],
+                        from: Pos(curNo, oldLen),
+                        to: Pos(curNo + 1, spaceTrimmed.length)});
+        } else {
+          curLine = leadingSpace + text;
+          ++curNo;
+        }
+      }
+      while (curLine.length > column) {
+        var bp = findBreakPoint(curLine, column, wrapOn, killTrailing, forceBreak);
+        if (bp.from != bp.to || forceBreak) {
+          changes.push({text: ["", leadingSpace],
+                        from: Pos(curNo, bp.from),
+                        to: Pos(curNo, bp.to)});
+          curLine = leadingSpace + curLine.slice(bp.to);
+          ++curNo;
+        } else {
+          break;
+        }
+      }
+    }
+    if (changes.length) cm.operation(function() {
+      for (var i = 0; i < changes.length; ++i) {
+        var change = changes[i];
+        if (change.text || CodeMirror.cmpPos(change.from, change.to))
+          cm.replaceRange(change.text, change.from, change.to);
+      }
+    });
+    return changes.length ? {from: changes[0].from, to: CodeMirror.changeEnd(changes[changes.length - 1])} : null;
+  }
+
+  CodeMirror.defineExtension("wrapParagraph", function(pos, options) {
+    options = options || {};
+    if (!pos) pos = this.getCursor();
+    var para = findParagraph(this, pos, options);
+    return wrapRange(this, Pos(para.from, 0), Pos(para.to - 1), options);
+  });
+
+  CodeMirror.commands.wrapLines = function(cm) {
+    cm.operation(function() {
+      var ranges = cm.listSelections(), at = cm.lastLine() + 1;
+      for (var i = ranges.length - 1; i >= 0; i--) {
+        var range = ranges[i], span;
+        if (range.empty()) {
+          var para = findParagraph(cm, range.head, {});
+          span = {from: Pos(para.from, 0), to: Pos(para.to - 1)};
+        } else {
+          span = {from: range.from(), to: range.to()};
+        }
+        if (span.to.line >= at) continue;
+        at = span.from.line;
+        wrapRange(cm, span.from, span.to, {});
+      }
+    });
+  };
+
+  CodeMirror.defineExtension("wrapRange", function(from, to, options) {
+    return wrapRange(this, from, to, options || {});
+  });
+
+  CodeMirror.defineExtension("wrapParagraphsInRange", function(from, to, options) {
+    options = options || {};
+    var cm = this, paras = [];
+    for (var line = from.line; line <= to.line;) {
+      var para = findParagraph(cm, Pos(line, 0), options);
+      paras.push(para);
+      line = para.to;
+    }
+    var madeChange = false;
+    if (paras.length) cm.operation(function() {
+      for (var i = paras.length - 1; i >= 0; --i)
+        madeChange = madeChange || wrapRange(cm, Pos(paras[i].from, 0), Pos(paras[i].to - 1), options);
+    });
+    return madeChange;
+  });
+});