title: Unable to install using pip install requirements.txt
body: <p>I'm trying to install <a href="https://github.com/effigies/BitTornado/tree/python2.7" rel="noreferrer">BitTornado</a> for Python 2.7 using requirements.txt, I get the following error:</p>
  
  <pre><code>Collecting requirements.txt
    Could not find a version that satisfies the requirement requirements.txt (from versions: )
  No matching distribution found for requirements.txt
  </code></pre>
  
  <p>Here is my code in requirements.txt:</p>
  
  <pre><code>-e git+https://github.com/effigies/BitTornado.git#egg=python2.7
  </code></pre>
  
  <p>I also tried -e git+<a href="https://github.com/effigies/BitTornado.git@python2.7" rel="noreferrer">https://github.com/effigies/BitTornado.git@python2.7</a> but still not working. Does someone know why is this happening?  </p>
  
  <p>Note: "python2.7" is the branch name</p>
  
  <p>Thanks in Advance</p>