AttributeError: 'module' object has no attribute 'SSL_ST_INIT'

[tersmitten]

I don't know if this is something you can fix on your side, but we get this error in Ubuntu 16.04.

Traceback (most recent call last):
  File "/usr/local/bin/twisted-connect-proxy", line 8, in <module>
    from twisted.web.proxy import Proxy, ProxyRequest
  File "/usr/lib/python2.7/dist-packages/twisted/web/proxy.py", line 24, in <module>
    from twisted.internet import reactor
  File "/usr/lib/python2.7/dist-packages/twisted/internet/reactor.py", line 38, in <module>
    from twisted.internet import default
  File "/usr/lib/python2.7/dist-packages/twisted/internet/default.py", line 56, in <module>
    install = _getInstallFunction(platform)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/default.py", line 44, in _getInstallFunction
    from twisted.internet.epollreactor import install
  File "/usr/lib/python2.7/dist-packages/twisted/internet/epollreactor.py", line 24, in <module>
    from twisted.internet import posixbase
  File "/usr/lib/python2.7/dist-packages/twisted/internet/posixbase.py", line 18, in <module>
    from twisted.internet import error, udp, tcp
  File "/usr/lib/python2.7/dist-packages/twisted/internet/tcp.py", line 29, in <module>
    from twisted.internet._newtls import (
  File "/usr/lib/python2.7/dist-packages/twisted/internet/_newtls.py", line 21, in <module>
    from twisted.protocols.tls import TLSMemoryBIOFactory, TLSMemoryBIOProtocol
  File "/usr/lib/python2.7/dist-packages/twisted/protocols/tls.py", line 41, in <module>
    from OpenSSL.SSL import Error, ZeroReturnError, WantReadError
  File "/usr/lib/python2.7/dist-packages/OpenSSL/__init__.py", line 8, in <module>
    from OpenSSL import rand, crypto, SSL
  File "/usr/lib/python2.7/dist-packages/OpenSSL/SSL.py", line 118, in <module>
    SSL_ST_INIT = _lib.SSL_ST_INIT
AttributeError: 'module' object has no attribute 'SSL_ST_INIT'

Upgrading pyopenssl (pip install 'pyopenssl>=16.2.0') fixes the problem, but I rather not do that (system wide).

[tersmitten]

Ubuntu 16.04

root@ansible-twisted-connect-proxy-ubuntu-1604:~# openssl version
OpenSSL 1.0.2g  1 Mar 2016

Installing collected packages: pyopenssl
  Found existing installation: pyOpenSSL 0.15.1
    Uninstalling pyOpenSSL-0.15.1:
      Successfully uninstalled pyOpenSSL-0.15.1
Successfully installed pyopenssl-17.3.0

Ubuntu 14.04

vagrant@ansible-twisted-connect-proxy-ubuntu-1404:~$ openssl version
OpenSSL 1.0.1f 6 Jan 2014

Installing collected packages: pyopenssl
Successfully installed pyopenssl-17.3.0

[tersmitten]

The old python-openssl seems to be a dependency of python-twisted-core (in Ubuntu 16.04)