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

normalize unicode notebook filenames...

normalize unicode notebook filenames used in comparison check for notebook name change. Unless the filenames are normalized, unchanged names may result in false positives for a name change (e.g. OS X uses NFD on the filesystem, so u'\xfc' roundtripped to the filesystem will be u'u\u0308'), which can result in the first save of a notebook after open performing the following actions: 1. save the recently opened notebook 2. `old_name != new_name`, so name change detected 3. delete old_name (which is actually new_name), which ultimately deletes the just-saved notebook In master, this has a symptom of the first checkpoint failing because the first save actually deleted the file, and you can't checkpoint a notebook that doesn't exist. closes

Brian E. Granger - - Load All Authors

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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)