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pythonw in py3k sets std{in,out,err} to None...
pythonw in py3k sets std{in,out,err} to None The print statement works without error, even though the stdio file objects are instances of None. Since they are instances of None, however, the encoding attribute will not exist, so protect blind attribute access of std{in,out,err} by using a new function, get_stream_enc.
Brian Granger - - Load All Authors

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convert.py
51 lines | 1.6 KiB | text/x-python | PythonLexer
/ IPython / nbformat / v3 / 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
)
from IPython.nbformat import v2
#-----------------------------------------------------------------------------
# Code
#-----------------------------------------------------------------------------
def convert_to_this_nbformat(nb, orig_version=2):
"""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.
"""
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 = 3
nb.orig_nbformat = 2
return nb
elif orig_version == 3:
return nb
else:
raise ValueError('Cannot convert a notebook from v%s to v3' % orig_version)