##// END OF EJS Templates
Proper error handling for nbformat versions in client code....
Proper error handling for nbformat versions in client code. 1. Users are warned when an older nbformat notebook is converted. 2. The notebook notifies the user when a notebook that is too new is attempted to load. To test these things, create a simple notebook. Then change its nbformat field by hand to 2 (to test 1) and then 4 (to test 2).

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rwbase.py
47 lines | 1.4 KiB | text/x-python | PythonLexer
"""Base classes and function for readers and writers.
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 base64 import encodestring, decodestring
#-----------------------------------------------------------------------------
# Code
#-----------------------------------------------------------------------------
class NotebookReader(object):
def reads(self, s, **kwargs):
"""Read a notebook from a string."""
raise NotImplementedError("loads must be implemented in a subclass")
def read(self, fp, **kwargs):
"""Read a notebook from a file like object"""
return self.reads(fp.read(), **kwargs)
class NotebookWriter(object):
def writes(self, nb, **kwargs):
"""Write a notebook to a string."""
raise NotImplementedError("loads must be implemented in a subclass")
def write(self, nb, fp, **kwargs):
"""Write a notebook to a file like object"""
return fp.write(self.writes(nb,**kwargs))