upstream/ipython Files · IPython/external/decorators/_numpy_testing_noseclasses.py

Fixed order of notebook loading and kernel starting....

Fixed order of notebook loading and kernel starting. For security reasons, the kernel should not be started until after the notebook content is completely loaded and on the page. This prevents people from creating notebooks that run nasty code on the users machine at load time. In order to implement this, we had to create a CodeCell.set_kernel method that allows the kernel attribute of a CodeCell to be set at a later time. This also fixes some error messages we were seeing related to the kernel's channels not being setup properly when a send was attempted.

Paul Ivanov - - Load All Authors

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      # IPython: modified copy of numpy.testing.noseclasses, so

      # IPython.external._decorators works without numpy being installed.

      # These classes implement a "known failure" error class.

      import os

      from nose.plugins.errorclass import ErrorClass, ErrorClassPlugin

      class KnownFailureTest(Exception):

          '''Raise this exception to mark a test as a known failing test.'''

          pass

      class KnownFailure(ErrorClassPlugin):

          '''Plugin that installs a KNOWNFAIL error class for the

          KnownFailureClass exception.  When KnownFailureTest is raised,

          the exception will be logged in the knownfail attribute of the

          result, 'K' or 'KNOWNFAIL' (verbose) will be output, and the

          exception will not be counted as an error or failure.'''

          enabled = True

          knownfail = ErrorClass(KnownFailureTest,

                                 label='KNOWNFAIL',

                                 isfailure=False)

          def options(self, parser, env=os.environ):

              env_opt = 'NOSE_WITHOUT_KNOWNFAIL'

              parser.add_option('--no-knownfail', action='store_true',

                                dest='noKnownFail', default=env.get(env_opt, False),

                                help='Disable special handling of KnownFailureTest '

                                     'exceptions')

          def configure(self, options, conf):

              if not self.can_configure:

                  return

              self.conf = conf

              disable = getattr(options, 'noKnownFail', False)

              if disable:

                  self.enabled = False

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				# IPython: modified copy of numpy.testing.noseclasses, so
				# IPython.external._decorators works without numpy being installed.

				# These classes implement a "known failure" error class.

				import os

				from nose.plugins.errorclass import ErrorClass, ErrorClassPlugin

				class KnownFailureTest(Exception):
				'''Raise this exception to mark a test as a known failing test.'''
				pass


				class KnownFailure(ErrorClassPlugin):
				'''Plugin that installs a KNOWNFAIL error class for the
				KnownFailureClass exception. When KnownFailureTest is raised,
				the exception will be logged in the knownfail attribute of the
				result, 'K' or 'KNOWNFAIL' (verbose) will be output, and the
				exception will not be counted as an error or failure.'''
				enabled = True
				knownfail = ErrorClass(KnownFailureTest,
				label='KNOWNFAIL',
				isfailure=False)

				def options(self, parser, env=os.environ):
				env_opt = 'NOSE_WITHOUT_KNOWNFAIL'
				parser.add_option('--no-knownfail', action='store_true',
				dest='noKnownFail', default=env.get(env_opt, False),
				help='Disable special handling of KnownFailureTest '
				'exceptions')

				def configure(self, options, conf):
				if not self.can_configure:
				return
				self.conf = conf
				disable = getattr(options, 'noKnownFail', False)
				if disable:
				self.enabled = False