title: Import Error in Cygwin
body: <p>When I try to launch python scripts from Cygwin, I get an import error, even though my script clearly imports the necessary modules:</p>
  
  <p><code>$ python Test_geo.py
  Traceback (most recent call last):
    File "Test_geo.py", line 8, in &lt;module&gt;
      import matplotlib.pyplot as plt
  ImportError: No module named matplotlib.pyplot</code></p>
  
  <p>When I run the script in idle, it works. AND, when I run the script in git bash, it works.  </p>
  
  <p>I have the relevant Cygwin packages installed:  <code>C:\cygwin\lib\python2.7</code>, which includes idlelib, as well as importlib.</p>
  
  <p>Any ideas what the problem might be?  Thanks.  </p>