Uploaded Test files

venv/Lib/site-packages/notebook/services/nbconvert/handlers.py

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+import json
+
+from tornado import web
+
+from ...base.handlers import APIHandler
+
+
+class NbconvertRootHandler(APIHandler):
+
+    @web.authenticated
+    def get(self):
+        self.check_xsrf_cookie()
+        try:
+            from nbconvert.exporters import base
+        except ImportError as e:
+            raise web.HTTPError(500, "Could not import nbconvert: %s" % e) from e
+        res = {}
+        exporters = base.get_export_names()
+        for exporter_name in exporters:
+            try:
+                exporter_class = base.get_exporter(exporter_name)
+            except ValueError:
+                # I think the only way this will happen is if the entrypoint
+                # is uninstalled while this method is running
+                continue
+            # XXX: According to the docs, it looks like this should be set to None
+            # if the exporter shouldn't be exposed to the front-end and a friendly
+            # name if it should. However, none of the built-in exports have it defined.
+            # if not exporter_class.export_from_notebook:
+            #    continue
+            res[exporter_name] = {
+                "output_mimetype": exporter_class.output_mimetype,
+            }
+
+        self.finish(json.dumps(res))
+
+default_handlers = [
+    (r"/api/nbconvert", NbconvertRootHandler),
+]