title: Where is 'pyximport'?
body: <p>I have some (not so) old code in which I use <a href="http://docs.cython.org/src/userguide/source_files_and_compilation.html#pyximport" rel="noreferrer"><code>pyximport</code></a>, but the code fails right at </p>
  
  <pre><code>import pyximport; pyximport.install()
  </code></pre>
  
  <p>with</p>
  
  <blockquote>
    <p>ImportError: No module named pyximport</p>
  </blockquote>
  
  <p>I've made a few changes to my system since I last ran this code, so perhaps it was removed or not migrated; but I can't find this package anywhere and </p>
  
  <pre><code>pip search pyximport
  </code></pre>
  
  <p>yields no results.</p>
  
  <p>What happened to <code>pyximport</code>? Where can I find it and, failing that, what should I use instead? </p>