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Adding checks to nbconvert.utils.pandoc module to ensure Pandoc is present...
Adding checks to nbconvert.utils.pandoc module to ensure Pandoc is present and issue warnings or raise exceptions when needed. Removed module root clutter and limited calling subprocess functions from too many places inside the module.

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zmqrelated.py
46 lines | 1.5 KiB | text/x-python | PythonLexer
"""Utilities for checking zmq versions."""
#-----------------------------------------------------------------------------
# Copyright (C) 2013 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 >= 2.1.11
#-----------------------------------------------------------------------------
from IPython.utils.version import check_version
def patch_pyzmq():
"""backport a few patches from newer pyzmq
These can be removed as we bump our minimum pyzmq version
"""
import zmq
# fallback on stdlib json if jsonlib is selected, because jsonlib breaks things.
# jsonlib support is removed from pyzmq >= 2.2.0
from zmq.utils import jsonapi
if jsonapi.jsonmod.__name__ == 'jsonlib':
import json
jsonapi.jsonmod = json
def check_for_zmq(minimum_version, required_by='Someone'):
try:
import zmq
except ImportError:
raise ImportError("%s requires pyzmq >= %s"%(required_by, minimum_version))
patch_pyzmq()
pyzmq_version = zmq.__version__
if not check_version(pyzmq_version, minimum_version):
raise ImportError("%s requires pyzmq >= %s, but you have %s"%(
required_by, minimum_version, pyzmq_version))