title: It is possible to install Fabric(Python) in Virtualenv? Getting an error
body: <p>I'm trying to install Fabric in Virtualenv but I'm getting an error. I'm usinh Python 2.7.2+</p>
  
  <pre><code>src/MD2.c:31:20: fatal error: Python.h: No such file or directory
  
  compilation terminated.
  
  error: command 'gcc' failed with exit status 1
  
  ----------------------------------------
  Command /home/andre/python_virtualenv/bin/python -c "import setuptools;__file__='/home/andre/python_virtualenv/build/pycrypto/setup.py'; exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-YGuAIj-record/install-record.txt --install-headers /home/andre/python_virtualenv/include/site/python2.7 failed with error code 1
  Storing complete log in /home/andre/.pip/pip.log
  </code></pre>
  
  <p>Some clues on what's wrong here?</p>
  
  <p>Best Regards,</p>