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

Shut down kernels in parallel...

Shut down kernels in parallel When stopping the notebook server, it currently sends a shutdown request to each kernel and then waits for the process to finish. This can be slow if you have several kernels running. This makes it issues all the shutdown requests before waiting on the processes, so shutdown happens in parallel. KernelManager (and MultiKernelManager) gain three new public API methods to allow this: * request_shutdown (promoted from a private method) * wait_shutdown (refactored out of shutdown_kernel) * cleanup (refactored out of shutdown_kernel)

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             _numpy_testing_noseclasses.py
        
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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