Interpreter Not Initialized (version mismatch?)

Fredrik Lundh fredrik at
Mon Jan 17 14:42:24 EST 2005

Ryan Jud Hughes wrote:

> I'm having trouble with python on MacOSX 10.3.  I wrote an extension module,
> in C, and got it to compile and run just fine, in MacOSX 10.2, using the
> MacPython 2.3 package that I downloaded.
> But when I copied my stuff over to my computer that had MacOSX 10.3(.7), and
> the out-of-the-box MacPython 2.3 that comes installed with it, I can no longer
> use my extension module, or run any new ones that I compile.
> It appears to compile just fine (I'm using the distutils to compile
> it), but when I import it in my Python script, it says
> "Fatal Error:  Interpreter not initialized (version mismatch?)"

this appears to be a Python-on-Mac-OS-X FAQ.  see this thread
for a solution (including a "fix installer"):


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