upstream/ipython Files · IPython/nbformat/v1/nbbase.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)

Thomas Kluyver - - Load All Authors

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      """The basic dict based notebook format.

      Authors:

      * Brian Granger

      """

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

      #  Copyright (C) 2008-2011  The IPython Development Team

      #

      #  Distributed under the terms of the BSD License.  The full license is in

      #  the file COPYING, distributed as part of this software.

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

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

      # Imports

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

      import pprint

      import uuid

      from IPython.utils.ipstruct import Struct

      from IPython.utils.py3compat import unicode_type

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

      # Code

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

      class NotebookNode(Struct):

          pass

      def from_dict(d):

          if isinstance(d, dict):

              newd = NotebookNode()

              for k,v in d.items():

                  newd[k] = from_dict(v)

              return newd

          elif isinstance(d, (tuple, list)):

              return [from_dict(i) for i in d]

          else:

              return d

      def new_code_cell(code=None, prompt_number=None):

          """Create a new code cell with input and output"""

          cell = NotebookNode()

          cell.cell_type = u'code'

          if code is not None:

              cell.code = unicode_type(code)

          if prompt_number is not None:

              cell.prompt_number = int(prompt_number)

          return cell

      def new_text_cell(text=None):

          """Create a new text cell."""

          cell = NotebookNode()

          if text is not None:

              cell.text = unicode_type(text)

          cell.cell_type = u'text'

          return cell

      def new_notebook(cells=None):

          """Create a notebook by name, id and a list of worksheets."""

          nb = NotebookNode()

          if cells is not None:

              nb.cells = cells

          else:

              nb.cells = []

          return nb

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				"""The basic dict based notebook format.

				Authors:

				* Brian Granger
				"""

				#-----------------------------------------------------------------------------
				# Copyright (C) 2008-2011 The IPython Development Team
				#
				# Distributed under the terms of the BSD License. The full license is in
				# the file COPYING, distributed as part of this software.
				#-----------------------------------------------------------------------------

				#-----------------------------------------------------------------------------
				# Imports
				#-----------------------------------------------------------------------------

				import pprint
				import uuid

				from IPython.utils.ipstruct import Struct
				from IPython.utils.py3compat import unicode_type

				#-----------------------------------------------------------------------------
				# Code
				#-----------------------------------------------------------------------------

				class NotebookNode(Struct):
				pass


				def from_dict(d):
				if isinstance(d, dict):
				newd = NotebookNode()
				for k,v in d.items():
				newd[k] = from_dict(v)
				return newd
				elif isinstance(d, (tuple, list)):
				return [from_dict(i) for i in d]
				else:
				return d


				def new_code_cell(code=None, prompt_number=None):
				"""Create a new code cell with input and output"""
				cell = NotebookNode()
				cell.cell_type = u'code'
				if code is not None:
				cell.code = unicode_type(code)
				if prompt_number is not None:
				cell.prompt_number = int(prompt_number)
				return cell


				def new_text_cell(text=None):
				"""Create a new text cell."""
				cell = NotebookNode()
				if text is not None:
				cell.text = unicode_type(text)
				cell.cell_type = u'text'
				return cell


				def new_notebook(cells=None):
				"""Create a notebook by name, id and a list of worksheets."""
				nb = NotebookNode()
				if cells is not None:
				nb.cells = cells
				else:
				nb.cells = []
				return nb