Uploaded Test files

venv/Lib/site-packages/nbclient/tests/files/Parallel Execute A.ipynb

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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Ensure notebooks can execute in parallel\n",
+    "\n",
+    "This notebook uses a file system based \"lock\" to assert that two instances of the notebook kernel will run in parallel. Each instance writes to a file in a temporary directory, and then tries to read the other file from\n",
+    "the temporary directory, so that running them in sequence will fail, but running them in parallel will succed.\n",
+    "\n",
+    "Two notebooks are launched, each which sets the `this_notebook` variable. One notebook is set to `this_notebook = 'A'` and the other `this_notebook = 'B'`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import os\n",
+    "import os.path\n",
+    "import tempfile\n",
+    "import time"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# the variable this_notebook is injectected in a cell above by the test framework.\n",
+    "this_notebook = 'A'\n",
+    "other_notebook = 'B'\n",
+    "directory = os.environ['NBEXECUTE_TEST_PARALLEL_TMPDIR']\n",
+    "with open(os.path.join(directory, 'test_file_{}.txt'.format(this_notebook)), 'w') as f:\n",
+    "    f.write('Hello from {}'.format(this_notebook))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "start = time.time()\n",
+    "timeout = 5\n",
+    "end = start + timeout\n",
+    "target_file = os.path.join(directory, 'test_file_{}.txt'.format(other_notebook))\n",
+    "while time.time() < end:\n",
+    "    time.sleep(0.1)\n",
+    "    if os.path.exists(target_file):\n",
+    "        with open(target_file, 'r') as f:\n",
+    "            text = f.read()\n",
+    "        if text == 'Hello from {}'.format(other_notebook):\n",
+    "            break\n",
+    "else:\n",
+    "    assert False, \"Timed out – didn't get a message from {}\".format(other_notebook)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.6.7"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}