Git Bash replace:

find ./ -type f -exec sed -i -e 's/from resources.lib.externals.pytz/from resources.lib.externals.pytz/g' {} \;

in tzinfo.py, replace

pytz._p
   with
_p

and replace the top import

import pytz
   with
def _p(*args):
    return unpickler(*args)
_p.__safe_for_unpickling__ = True