title: How to install module name with an underscore in python?
body: <p>I am trying to install the Levenshtein module, as you can see <a href="https://pypi.python.org/pypi/python-Levenshtein/0.12.0" rel="nofollow">here</a>.</p>
  
  <p>I am able to run the <code>setup.py</code> file by <code>python setup.py build</code>.  </p>
  
  <p>Then, when I go immediately into python by doing just <code>python</code> from he terminal, while in the same folder as the folder <code>Levenshtein</code>, I try to import it:</p>
  
  <p><code>import Levenshtein</code>, </p>
  
  <p>but I get the following error:</p>
  
  <pre><code>    &gt;&gt;&gt; import Levenshtein
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "Levenshtein/__init__.py", line 1, in &lt;module&gt;
      from Levenshtein import _levenshtein
  ImportError: cannot import name _levenshtein
  </code></pre>
  
  <p>and, when I look in the folder <code>Levenshtein</code>, I see two files that are similar to that name:</p>
  
  <pre><code> _levenshtein.c   _levenshtein.h
  </code></pre>
  
  <p>How does this import make sense, and how am I supposed to get a file of the name <code>_levenshtein</code>?</p>