title: How to exclude files from a pull request?
body: <p>I will like to perform a pull and merge request but also I would like to exclude some files from this pull request.</p>
  
  <pre><code>Example: a.py  b.py c.py
  </code></pre>
  
  <p>I would like to peform a pull request and merge except <code>b.py</code> file. </p>
  
  <p>What is the easiest way to accomplish this?</p>
  
  <p>[edit] the file is not committed it yet.</p>