upstream/ipython Files · IPython/nbformat/v2/convert.py

Set calling program to the empty string, when argv not in sys...

Set calling program to the empty string, when argv not in sys It might happen, then the sys module has no argv, when embeding IPython into other programs with IPython.embed(). In that case, just set the calling program to "" or other logic in IPython will crash - for instance when checking for command line arguments.

Brian E. Granger - - Load All Authors

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             convert.py
        
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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

      )

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

      # Code

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

      def convert_to_this_nbformat(nb, orig_version=1):

          """Convert a notebook to the v2 format.

          Parameters

          ----------

          nb : NotebookNode

              The Python representation of the notebook to convert.

          orig_version : int

              The original version of the notebook to convert.

          """

          if orig_version == 1:

              newnb = new_notebook()

              ws = new_worksheet()

              for cell in nb.cells:

                  if cell.cell_type == u'code':

                      newcell = new_code_cell(input=cell.get('code'),prompt_number=cell.get('prompt_number'))

                  elif cell.cell_type == u'text':

                      newcell = new_text_cell(u'markdown',source=cell.get('text'))

                  ws.cells.append(newcell)

              newnb.worksheets.append(ws)

              return newnb

          else:

              raise ValueError('Cannot convert a notebook from v%s to v2' % 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
				)

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

				def convert_to_this_nbformat(nb, orig_version=1):
				"""Convert a notebook to the v2 format.

				Parameters
				----------
				nb : NotebookNode
				The Python representation of the notebook to convert.
				orig_version : int
				The original version of the notebook to convert.
				"""
				if orig_version == 1:
				newnb = new_notebook()
				ws = new_worksheet()
				for cell in nb.cells:
				if cell.cell_type == u'code':
				newcell = new_code_cell(input=cell.get('code'),prompt_number=cell.get('prompt_number'))
				elif cell.cell_type == u'text':
				newcell = new_text_cell(u'markdown',source=cell.get('text'))
				ws.cells.append(newcell)
				newnb.worksheets.append(ws)
				return newnb
				else:
				raise ValueError('Cannot convert a notebook from v%s to v2' % orig_version)