upstream/ipython Files · IPython/kernel/managerabc.py

cache kernel_info reply for protocol adaptation...

cache kernel_info reply for protocol adaptation WebSocket connections will not open until kernel_info is retrieved, removing a race condition waiting for the reply to indicate adaptation, which could result in a v5 message being sent to a v4 kernel. The reply is cached, so that it need not be requested on each new connection.

MinRK - - Load All Authors

File last commit:

r16571:35791903


                r18497:e68c1790

Download file

             managerabc.py
        
                    53 lines
            
             | 1.2 KiB
            
                | text/x-python
            
             |
                PythonLexer
            
             / IPython / kernel / managerabc.py
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      """Abstract base class for kernel managers."""

      # Copyright (c) IPython Development Team.

      # Distributed under the terms of the Modified BSD License.

      import abc

      from IPython.utils.py3compat import with_metaclass

      class KernelManagerABC(with_metaclass(abc.ABCMeta, object)):

          """KernelManager ABC.

          The docstrings for this class can be found in the base implementation:

          `IPython.kernel.kernelmanager.KernelManager`

          """

          @abc.abstractproperty

          def kernel(self):

              pass

          #--------------------------------------------------------------------------

          # Kernel management

          #--------------------------------------------------------------------------

          @abc.abstractmethod

          def start_kernel(self, **kw):

              pass

          @abc.abstractmethod

          def shutdown_kernel(self, now=False, restart=False):

              pass

          @abc.abstractmethod

          def restart_kernel(self, now=False, **kw):

              pass

          @abc.abstractproperty

          def has_kernel(self):

              pass

          @abc.abstractmethod

          def interrupt_kernel(self):

              pass

          @abc.abstractmethod

          def signal_kernel(self, signum):

              pass

          @abc.abstractmethod

          def is_alive(self):

              pass

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				"""Abstract base class for kernel managers."""

				# Copyright (c) IPython Development Team.
				# Distributed under the terms of the Modified BSD License.

				import abc

				from IPython.utils.py3compat import with_metaclass


				class KernelManagerABC(with_metaclass(abc.ABCMeta, object)):
				"""KernelManager ABC.

				The docstrings for this class can be found in the base implementation:

				`IPython.kernel.kernelmanager.KernelManager`
				"""

				@abc.abstractproperty
				def kernel(self):
				pass

				#--------------------------------------------------------------------------
				# Kernel management
				#--------------------------------------------------------------------------

				@abc.abstractmethod
				def start_kernel(self, **kw):
				pass

				@abc.abstractmethod
				def shutdown_kernel(self, now=False, restart=False):
				pass

				@abc.abstractmethod
				def restart_kernel(self, now=False, **kw):
				pass

				@abc.abstractproperty
				def has_kernel(self):
				pass

				@abc.abstractmethod
				def interrupt_kernel(self):
				pass

				@abc.abstractmethod
				def signal_kernel(self, signum):
				pass

				@abc.abstractmethod
				def is_alive(self):
				pass