title: Is it possible to use multiple paths for PYTHONPATH on Windows?
body: <p>I have a clean virtual machine with XP SP3 32-bit and ActivePython 2.7.2 32-bit community edition, current dir is "C:\test". I have placed <code>sitecustomize.py</code> with "print( 'dir1' )" code indie "C:\test\dir1" and <code>sitecustomize.py</code> with "print( 'dir2' )" code indie "C:\test\dir2".</p>
  
  <p>If i set <code>PYTHONPATH</code> to <code>dir1</code> or <code>dir2</code>, corresponding <code>sitecustomize.py</code> is executed:</p>
  
  <pre><code>C:\test&gt; set PYTHONPATH=C:\test\dir1\
  C:\text&gt; python
  dir1
  &gt;&gt;&gt;exit()
  C:\test&gt; set PYTHONPATH=C:\test\dir2\
  C:\text&gt; python
  dir2
  </code></pre>
  
  <p>But if i add both dirs to pythonpath, only <code>sitecustomize.py</code> of <strong>first</strong> dir is executed:</p>
  
  <pre><code>C:\test&gt; set PYTHONPATH=C:\test\dir1\;C:\test\dir2\
  C:\text&gt; python
  dir1
  &gt;&gt;&gt;exit()
  C:\test&gt; set PYTHONPATH=C:\test\dir2\;C:\test\dir1\
  C:\text&gt; python
  dir2
  </code></pre>
  
  <p>So is it possible to have multiple dirs in <code>PYTHONPATH</code> and multiple <code>sitecustomize.py</code> or i'm limited to one? Documentation states that i can have many dirs in <code>PYTHONPATH</code>, but it don't say anything about <code>sitecustomize.py</code></p>