title: Apply patches to python libraries
body: <p>I want to apply <a href="http://hg.secdev.org/scapy/" rel="nofollow">patches</a> that the author of a Python library uploaded on his website. Is there any way to do this easily without resorting to doing it manually on each impacted line? </p>
  
  <p>Something like:</p>
  
  <pre><code>$ applyPatch patchFile sourceCodeFile
  </code></pre>