##// END OF EJS Templates
protect IPython from bad custom exception handlers...
protect IPython from bad custom exception handlers Previously, errors in custom handlers would result in the custom exception handler's error being printed in lieu of the real exception, and certain cases could cause infinite loops. Now, if CustomTB fails it is unregistered immediately, and the original TB is also displayed. IPython's own BdbQuit_IPython_excepthook had an invalid signature, which revealed this issue, and has also been fixed. test included. closes #692

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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))