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

Make comm manager (mostly) independent of InteractiveShell...

Make comm manager (mostly) independent of InteractiveShell This makes it possible to use comms from wrapper kernels, without instantiating the full IPython shell machinery. The one remaining place where we need a reference to shell is to fire pre_execute and post_execute hooks (which are needed to get mpl figures right). This is a pure IPythonism, that it should be safe to ignore if shell is not set.

Thomas Kluyver - - Load All Authors

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             handlers.py
        
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      """Tornado handlers for kernel specifications."""

      # Copyright (c) IPython Development Team.

      # Distributed under the terms of the Modified BSD License.

      import json

      from tornado import web

      from ...base.handlers import IPythonHandler, json_errors

      from IPython.kernel.kernelspec import _pythonfirst

      class MainKernelSpecHandler(IPythonHandler):

          SUPPORTED_METHODS = ('GET',)

          @web.authenticated

          @json_errors

          def get(self):

              ksm = self.kernel_spec_manager

              results = []

              for kernel_name in sorted(ksm.find_kernel_specs(), key=_pythonfirst):

                  d = ksm.get_kernel_spec(kernel_name).to_dict()

                  d['name'] = kernel_name

                  results.append(d)

              self.set_header("Content-Type", 'application/json')

              self.finish(json.dumps(results))

      class KernelSpecHandler(IPythonHandler):

          SUPPORTED_METHODS = ('GET',)

          @web.authenticated

          @json_errors

          def get(self, kernel_name):

              ksm = self.kernel_spec_manager

              try:

                  kernelspec = ksm.get_kernel_spec(kernel_name)

              except KeyError:

                  raise web.HTTPError(404, u'Kernel spec %s not found' % kernel_name)

              self.set_header("Content-Type", 'application/json')

              self.finish(kernelspec.to_json())

      # URL to handler mappings

      kernel_name_regex = r"(?P<kernel_name>\w+)"

      default_handlers = [

          (r"/api/kernelspecs", MainKernelSpecHandler),

          (r"/api/kernelspecs/%s" % kernel_name_regex, KernelSpecHandler),

      ]

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				"""Tornado handlers for kernel specifications."""

				# Copyright (c) IPython Development Team.
				# Distributed under the terms of the Modified BSD License.
				import json
				from tornado import web

				from ...base.handlers import IPythonHandler, json_errors

				from IPython.kernel.kernelspec import _pythonfirst


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

				@web.authenticated
				@json_errors
				def get(self):
				ksm = self.kernel_spec_manager
				results = []
				for kernel_name in sorted(ksm.find_kernel_specs(), key=_pythonfirst):
				d = ksm.get_kernel_spec(kernel_name).to_dict()
				d['name'] = kernel_name
				results.append(d)

				self.set_header("Content-Type", 'application/json')
				self.finish(json.dumps(results))


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

				@web.authenticated
				@json_errors
				def get(self, kernel_name):
				ksm = self.kernel_spec_manager
				try:
				kernelspec = ksm.get_kernel_spec(kernel_name)
				except KeyError:
				raise web.HTTPError(404, u'Kernel spec %s not found' % kernel_name)
				self.set_header("Content-Type", 'application/json')
				self.finish(kernelspec.to_json())


				# URL to handler mappings

				kernel_name_regex = r"(?P<kernel_name>\w+)"

				default_handlers = [
				(r"/api/kernelspecs", MainKernelSpecHandler),
				(r"/api/kernelspecs/%s" % kernel_name_regex, KernelSpecHandler),
				]