title: pip install mysql-connector==2.1.3 fails
body: <pre><code>(ENV)$ pip install mysql-connector==2.1.3
  Collecting mysql-connector==2.1.3
    Using cached mysql-connector-2.1.3.zip
  Installing collected packages: mysql-connector
    Running setup.py install for mysql-connector
      usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
         or: -c --help [cmd1 cmd2 ...]
         or: -c --help-commands
         or: -c cmd --help
      error: option --single-version-externally-managed not recognized
      Complete output from command /&lt;DIR&gt;/ENV/bin/python2 -c "import setuptools, tokenize;__file__='/tmp/pip-build-ImtJft/mysql-connector/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-FN9lfq-record/install-record.txt --single-version-externally-managed --compile --install-headers /&lt;DIR&gt;/ENV/include/site/python2.7:
      usage: -c [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
  
         or: -c --help [cmd1 cmd2 ...]
  
         or: -c --help-commands
  
         or: -c cmd --help
  
  
  
      error: option --single-version-externally-managed not recognized
  
      ----------------------------------------
      Command "/&lt;DIR&gt;/ENV/bin/python2 -c "import setuptools, tokenize;__file__='/tmp/pip-build-ImtJft/mysql-connector/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-FN9lfq-record/install-record.txt --single-version-externally-managed --compile --install-headers /&lt;DIR&gt;/ENV/include/site/python2.7" failed with error code 1 in /tmp/pip-build-ImtJft/mysql-connector
  </code></pre>
  
  <p>This is the error. I have been trying to figure out the error. I did some searching around, but of no use. I am running Fedora 22. I checked to see if it could be if MySQL isn't installed. But <code>mysql-devel</code> and <code>mysql-libs</code> are installed. Please help. </p>
  
  <p>EDIT: I tried: </p>
  
  <pre><code>easy_install mysql-connector==2.1.3
  </code></pre>
  
  <p>And it works. But why is <code>pip</code> failing?</p>