title: Pylons importing Psycopg2 error
body: <pre><code>    Traceback (most recent call last):
   File "&lt;stdin&gt;", line 1, in &lt;module&gt;
   File "/Library/Python/2.6/site-packages/psycopg2/__init__.py", line 60, in &lt;module&gt;
     from _psycopg import BINARY, NUMBER, STRING, DATETIME, ROWID
  ImportError: dlopen(/Library/Python/2.6/site-packages/psycopg2/_psycopg.so, 2): Symbol not found: _PQbackendPID
   Referenced from: /Library/Python/2.6/site-packages/psycopg2/_psycopg.so
   Expected in: flat namespace
   in /Library/Python/2.6/site-packages/psycopg2/_psycopg.so
  </code></pre>
  
  <p>Psycopg2 was working fine before, but now I get this error.</p>
  
  <p>Any ideas on this issue much appreciated.</p>
  
  <hr>
  
  <p>EDIT: so after dealing with so many psycopg2 errors everytime I set up my mac, I've decided to use VMWareFusion running Ubuntu instead.</p>