SSL Error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed

[switchkiller]

I am using Python 2.7.9 with OpenSSL 1.0.1f 6 Jan 2014 .

On building the following code

 from firebase import firebase
 firebase = firebase.FirebaseApplication('https://test.firebaseio.com',None)
 data = {'testVal': '0'}
 result = firebase.post('/user', data)
 print (result)

However I got the following error

    File "/usr/local/lib/python2.7/dist-packages/firebase/decorators.py", line 19, in wrapped
      return f(*args, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/firebase/firebase.py", line 329, in post
      connection=connection)
    File "/usr/local/lib/python2.7/dist-packages/firebase/decorators.py", line 19, in wrapped
      return f(*args, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/firebase/firebase.py", line 97, in make_post_request
      timeout=timeout)
    File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 340, in post
      return self.request('POST', url, data=data, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 279, in request
      resp = self.send(prep, stream=stream, timeout=timeout, verify=verify, cert=cert, proxies=proxies)
    File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 374, in send
      r = adapter.send(request, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/requests/adapters.py", line 213, in send
      raise SSLError(e)
  requests.exceptions.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)

[switchkiller]

However, I ran the same code on cloud9 IDE, it ran with no issues.

It has Python 2.7.6 and OpenSSL 1.0.1f 6 Jan 2014

Hence, using virtualenv for Python 2.7 solved the problem for me.