upstream/ipython Files · IPython/nbformat/v3/convert.py

%prun: Restore `stats.stream` after running `print_stream`....

%prun: Restore `stats.stream` after running `print_stream`. When profiling, the output from `print_stream` is captured so that the output can be paged. To do so, the `stream` attribute is set to a `StringIO` object but was not restored after the output was captured. As a result, the stats object returned by `%prun -r` did not display any output when calling its `print_stream` method. In addition, the `pstats.Stats` class has the `stream` attribute for all currently supported Python versions, so the extra branch of code can be removed.

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      """Code for converting notebooks to and from the v2 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

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

      from .nbbase import (

          new_code_cell, new_text_cell, new_worksheet, new_notebook, new_output,

          nbformat, nbformat_minor

      )

      from IPython.nbformat import v2

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

      # Code

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

      def convert_to_this_nbformat(nb, orig_version=2, orig_minor=0):

          """Convert a notebook to the v3 format.

          Parameters

          ----------

          nb : NotebookNode

              The Python representation of the notebook to convert.

          orig_version : int

              The original version of the notebook to convert.

          orig_minor : int

              The original minor version of the notebook to convert (only relevant for v >= 3).

          """

          if orig_version == 1:

              nb = v2.convert_to_this_nbformat(nb)

              orig_version = 2

          if orig_version == 2:

              # Mark the original nbformat so consumers know it has been converted.

              nb.nbformat = nbformat

              nb.nbformat_minor = nbformat_minor

              nb.orig_nbformat = 2

              return nb

          elif orig_version == 3:

              if orig_minor != nbformat_minor:

                  nb.orig_nbformat_minor = orig_minor

              nb.nbformat_minor = nbformat_minor

              return nb

          else:

              raise ValueError('Cannot convert a notebook from v%s to v3' % orig_version)

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				"""Code for converting notebooks to and from the v2 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
				#-----------------------------------------------------------------------------

				from .nbbase import (
				new_code_cell, new_text_cell, new_worksheet, new_notebook, new_output,
				nbformat, nbformat_minor
				)

				from IPython.nbformat import v2

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

				def convert_to_this_nbformat(nb, orig_version=2, orig_minor=0):
				"""Convert a notebook to the v3 format.

				Parameters
				----------
				nb : NotebookNode
				The Python representation of the notebook to convert.
				orig_version : int
				The original version of the notebook to convert.
				orig_minor : int
				The original minor version of the notebook to convert (only relevant for v >= 3).
				"""
				if orig_version == 1:
				nb = v2.convert_to_this_nbformat(nb)
				orig_version = 2
				if orig_version == 2:
				# Mark the original nbformat so consumers know it has been converted.
				nb.nbformat = nbformat
				nb.nbformat_minor = nbformat_minor

				nb.orig_nbformat = 2
				return nb
				elif orig_version == 3:
				if orig_minor != nbformat_minor:
				nb.orig_nbformat_minor = orig_minor
				nb.nbformat_minor = nbformat_minor
				return nb
				else:
				raise ValueError('Cannot convert a notebook from v%s to v3' % orig_version)