Check for SSL errors and correct dependancies.

test_ssl.sh

#!/bin/bash

#Install our required modules, with the correct versions.
/usr/bin/env pip2.7 install -q -U 'cheetah>=2.1.0' 'pyopenssl<=0.13.1' 'requests<=2.6.0' 'ndg-httpsclient' 'pyasn1'

#Test out the environment, and try to access a site on shared hosting needing SNI
/usr/bin/env python2 <<PYDOC

import sys

try:
    import OpenSSL
    from OpenSSL.version import __version__ as pyOpenSSL_Version
    print('pyOpenSSL Version: ' + pyOpenSSL_Version)
    if int(pyOpenSSL_Version.replace('.', '')[:3]) > 13:
        print('OpenSSL is 0.14 or newer, checking for cryptography')
        import cryptography
except Exception as e:
    print(e)
    raise
    sys.exit(1)

try:
    import requests
    import ndg.httpsclient
    import pyasn1
except Exception as e:
    print(e)
    raise
    sys.exit(1)

try:
    from requests.packages.urllib3.contrib.pyopenssl import inject_into_urllib3
    from requests.packages.urllib3 import disable_warnings
except Exception as e:
    print(e)
    raise
    sys.exit(1)

try:
    disable_warnings()
    inject_into_urllib3()
except Exception as e:
    print(e)
    raise
    sys.exit(1)

try:
    req = requests.get("https://sceneaccess.eu")
    assert req.status_code == 200
except Exception as e:
    print(e)
    raise
    sys.exit(1)
finally:
    print('Success!')

sys.exit(0)

PYDOC