title: Python 2.7 import requests issue
body: <p>I've tried to install requests module (Debian, Python 2.7) by <code>pip install requests</code> command. Output was:</p>
  
  <pre><code>Installing collected packages: urllib3, requests
  Successfully installed requests-2.18.4 urllib3-1.22
  </code></pre>
  
  <p>Tried following the following <a href="http://docs.python-requests.org/en/master/user/quickstart/" rel="nofollow noreferrer">Quickstart tutorial</a> but I get the following error at <code>import requests</code></p>
  
  <pre><code>Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "requests/__init__.py", line 76, in &lt;module&gt;
      check_compatibility(urllib3.__version__, chardet.__version__)
  AttributeError: 'module' object has no attribute '__version__'
  </code></pre>
  
  <p>Any help?</p>