ValueError: check_hostname needs a SSL context with either CERT_OPTIONAL or CERT_REQUIRED

[afalk42]

I just upgraded from v201409 to v201502 by running pip install --upgrade googleads and without doing any other changes, I suddenly can no longer use any of the googleads services. Any call, for example, to get a list of all campaigns, now results in a ValueError exception inside the http lib, where it claims it needs an SSL context with either CERT_OPTIONAL or CERT_REQUIRED?

DEBUG:suds.transport.http:opening (https://adwords.google.com/api/adwords/cm/v201502/CampaignService?wsdl)
INFO:oauth2client.client:Refreshing access_token
Traceback (most recent call last):
   ...
    page = campaign_service.get(selector)
  File "C:\Python34\lib\site-packages\googleads\common.py", line 294, in MakeSoapRequest
    self._header_handler.SetHeaders(self.suds_client)
  File "C:\Python34\lib\site-packages\googleads\adwords.py", line 378, in SetHeaders
    headers=self._adwords_client.oauth2_client.CreateHttpHeader())
  File "C:\Python34\lib\site-packages\googleads\oauth2.py", line 150, in CreateHttpHeader
    self.Refresh()
  File "C:\Python34\lib\site-packages\googleads\oauth2.py", line 166, in Refresh
    self.disable_ssl_certificate_validation)))
  File "C:\Python34\lib\site-packages\oauth2client\client.py", line 577, in refresh
    self._refresh(http.request)
  File "C:\Python34\lib\site-packages\oauth2client\client.py", line 748, in _refresh
    self._do_refresh_request(http_request)
  File "C:\Python34\lib\site-packages\oauth2client\client.py", line 777, in _do_refresh_request
    self.token_uri, method='POST', body=body, headers=headers)
  File "C:\Python34\lib\site-packages\httplib2\__init__.py", line 1174, in request
    self.disable_ssl_certificate_validation)
  File "C:\Python34\lib\site-packages\httplib2\__init__.py", line 829, in __init__
    check_hostname=True)
  File "C:\Python34\lib\http\client.py", line 1211, in __init__
    raise ValueError("check_hostname needs a SSL context with "
ValueError: check_hostname needs a SSL context with either CERT_OPTIONAL or CERT_REQUIRED

I'm running Python 3.4 on Windows with not much installed in terms of other packages. The output from pip list is:

feedparser (5.1.3)
googleads (3.2.0)
httplib2 (0.9)
oauth2client (1.4.7)
oauthlib (0.7.2)
pip (6.1.1)
pyasn1 (0.1.7)
pyasn1-modules (0.0.5)
pyodbc (3.0.7)
PySocks (1.5.3)
pytz (2015.2)
PyYAML (3.11)
rsa (3.1.4)
setuptools (15.0)
six (1.9.0)
suds-jurko (0.6)

[afalk42]

Update: after doing further research and trying to reproduce this on another machine, I realized that the same error doesn't occur on a clean install. I went ahead, uninstalled Python 3.4.1 from my main dev machine, deleted the C:\Python34 directory in its entirety, did a clean fresh install of Python 3.4.3 and installed the googleads library and everything is working nicely again.

[lucasdavid]

I can't simply reinstall Python, as I'm on Ubuntu and there are many packages that depend on it. Instead, I modified httplib2/__init__.py file as done in this pull request, and it works!