monkey patch _hashlib to work around missing pypy class (#1443)
monkey patch _hashlib to work around missing pypy class (#1443)


oberstet/autobahn-python,crossbario/autobahn-python,oberstet/autobahn-python,crossbario/autobahn-python,tavendo/AutobahnPython,crossbario/autobahn-python,oberstet/autobahn-python