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

Use default OS shell to run system commands...

Use default OS shell to run system commands Instead of using os.system which uses /bin/sh, this uses subprocess.call (the replacement of os.system) to run the command using the default shell of the OS. With this, one can use more advanced commands for bash, zsh, ksh, ... I also edited the docstring, added comments and fixed the handling of return codes.

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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)