Hello,

mod_python doesn't seem to work with Python 2.3a1. 
After some debugging, it seems the culprit is 
Py_NewInterpreter(). The following C program works with 
Python 2.2 but gives an error with Python 2.3:

#include <Python.h>

int main()
{
    PyThreadState *tstate; 
    Py_Initialize();
    tstate = Py_NewInterpreter();
    return 0;
}

The relevant part of this program's output:

geertj@cristina:~$ PYTHONVERBOSE=1 ./a.out 
# installing zipimport hook
import zipimport # builtin
[...]
import __builtin__ # previously loaded (__builtin__)
import sys # previously loaded (sys)
'import site' failed; traceback:
ImportError: No module named site

It seems that Python is unable to find the module "site".

Greetings,
Geert Jansen

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I forgot to mention that the Python version used is 2.3a1.

Geert Jansen

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The problem appears to be that meta_path is not being
initialized in the new interpreter. Adding
_PyImportHooks_Init to Py_NewInterpreter seems to fix the
problem, initializing the new import hooks before trying to
import modules into the new interpreter.

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Patch 671459 seems to fix the problem.

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This was indeed fixed with that patch.