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fix base64 code in nbformat.v2...
fix base64 code in nbformat.v2 base64 encoding functions were called, but had no effect, because the notebook already has everything as b64-encoded bytestrings, which are valid ascii literals on Python 2. However, the encode/decode logic is actually triggered on Python 3, revealing its errors. This fixes the base64 functions that had no effect to have their intended effect, but does not use them. Rather, it is assumed that bytes objects are already b64-encoded (and thus ascii-safe), which assumption was already made in Python 2.

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r4725:7bde2f38
r5174:66077063
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__init__.py
42 lines | 1.5 KiB | text/x-python | PythonLexer
#-----------------------------------------------------------------------------
# Copyright (C) 2010 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING.txt, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Verify zmq version dependency >= 2.1.4
#-----------------------------------------------------------------------------
import re
import warnings
def check_for_zmq(minimum_version, module='IPython.zmq'):
min_vlist = [int(n) for n in minimum_version.split('.')]
try:
import zmq
except ImportError:
raise ImportError("%s requires pyzmq >= %s"%(module, minimum_version))
pyzmq_version = zmq.__version__
vlist = [int(n) for n in re.findall(r'\d+', pyzmq_version)]
if 'dev' not in pyzmq_version and vlist < min_vlist:
raise ImportError("%s requires pyzmq >= %s, but you have %s"%(
module, minimum_version, pyzmq_version))
# fix missing DEALER/ROUTER aliases in pyzmq < 2.1.9
if not hasattr(zmq, 'DEALER'):
zmq.DEALER = zmq.XREQ
if not hasattr(zmq, 'ROUTER'):
zmq.ROUTER = zmq.XREP
if zmq.zmq_version() >= '4.0.0':
warnings.warn("""libzmq 4 detected.
It is unlikely that IPython's zmq code will work properly.
Please install libzmq stable, which is 2.1.x or 2.2.x""",
RuntimeWarning)
check_for_zmq('2.1.4')