upstream/ipython Files · IPython/html/services/nbconvert/handlers.py

DEV: Refactor checkpoint logic from FileContentsManager....

DEV: Refactor checkpoint logic from FileContentsManager. - Add a `CheckpointManager` base class and infrastructure for creating a `checkpoint_manager` instance attribute on `ContentsManager`. - Provide default implementations of `delete` and `rename` in the base `ContentsManager` class. `ContentsManager` subclasses are now required to implement `delete_file` and `rename_file`. These methods no longer need to manage checkpoints. - Move checkpoint-related functionality from `FileContentsManager` to a dedicated `FileCheckpointManager` subclass. - Move shared filesystem interaction logic into `FileManagerMixin` used by both `FileContentsManager` and `FileCheckpointManager`. - Minor tweaks to ContentsManager tests to get methods from the right object. The purpose of this change is to provide an API for users to replace just the checkpoint logic associated with a particular `ContentsManager`. In particular, this change makes it possible to easily support remote storage of checkpoints while otherwise retaining normal filesystem interactions.

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             / IPython / html / services / nbconvert / handlers.py
          
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      import json

      from tornado import web

      from ...base.handlers import IPythonHandler, json_errors

      class NbconvertRootHandler(IPythonHandler):

          SUPPORTED_METHODS = ('GET',)

          @web.authenticated

          @json_errors

          def get(self):

              try:

                  from IPython.nbconvert.exporters.export import exporter_map

              except ImportError as e:

                  raise web.HTTPError(500, "Could not import nbconvert: %s" % e)

              res = {}

              for format, exporter in exporter_map.items():

                  res[format] = info = {}

                  info['output_mimetype'] = exporter.output_mimetype

              self.finish(json.dumps(res))

      default_handlers = [

          (r"/api/nbconvert", NbconvertRootHandler),

      ]

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				import json

				from tornado import web

				from ...base.handlers import IPythonHandler, json_errors

				class NbconvertRootHandler(IPythonHandler):
				SUPPORTED_METHODS = ('GET',)

				@web.authenticated
				@json_errors
				def get(self):
				try:
				from IPython.nbconvert.exporters.export import exporter_map
				except ImportError as e:
				raise web.HTTPError(500, "Could not import nbconvert: %s" % e)
				res = {}
				for format, exporter in exporter_map.items():
				res[format] = info = {}
				info['output_mimetype'] = exporter.output_mimetype

				self.finish(json.dumps(res))

				default_handlers = [
				(r"/api/nbconvert", NbconvertRootHandler),
				]