title: pydev debugger: unable to find real location for python 2.7 after OS 10.8 upgrade
body: <p>I just upgraded to OS X 10.8 Mountain Lion and having troubles understanding how the pydev debugger should work on Aptana 3.0.</p>
  
  <p>In Aptana's preferences I have the python interpreter setup with a location of "/usr/bin/python". It states that the System libs are coming from "/System/Library/Frameworks/Python.framework/Versions/2.7/..."</p>
  
  <p>When I start the debugger for my Google App Engine project within Aptana, the console logs:</p>
  
  <pre><code>pydev debugger: CRITICAL WARNING: This version of python seems to be incorrectly compiled (internal generated filenames are not absolute)
  pydev debugger: The debugger may still function, but it will work slower and may miss breakpoints.
  </code></pre>
  
  <p>It also states:</p>
  
  <pre><code>pydev debugger: Unable to find real location for: /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py
  pydev debugger: Unable to find real location for: /Applications/Aptana Studio 3/plugins/org.python.pydev.debug_2.2.2.2011100512/pysrc/pydevd.py
  pydev debugger: Unable to find real location for: /System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/posixpath.py
  ...
  </code></pre>
  
  <p>And it lists out all of the .py files within the "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/" folder.</p>
  
  <p>My app engine projects still loads, but I don't really understand why. What do I have to configure Aptana 3.0, and what's changed between my OSX 10.7 and 10.8 that made this critical warning come up?</p>