title: How to install a specific git branch with pipenv
body: <p>How can I install a specific git branch with pipenv? I know this command will install the bitcoinlib master branch</p>
  
  <pre><code>pipenv install -e git+https://github.com/1200wd/bitcoinlib.git#egg=bitcoinlib
  </code></pre>
  
  <p>But how can I install a branch that isn't master? </p>