Document mod_python behavior with more than one SETTINGS in a vhost

[Manuzhai]

URL resolving will be unstable if more than one DJANGO_SETTINGS_MODULE is referenced within a vhost (for example, in different locations) due to mod_python caching. This should be documented in the mod_python doc.

[Adrian Holovaty]

(In [275]) Fixed #135 -- Added 'Multiple Django installations on the same Apache' to docs/mod_python.txt

[mfenniak@…]

I believe this can be addressed by using mod_python's PythonInterpreter directive. This can force mod_python to use seperate python interpreter instances. For example:

<Location "/">
    SetHandler python-program
    PythonHandler django.core.handlers.modpython
    SetEnv DJANGO_SETTINGS_MODULE mysite.settings.main
    ...
    PythonInterpreter mysite.main
</Location>

<Location "/admin">
    SetHandler python-program
    PythonHandler django.core.handlers.modpython
    SetEnv DJANGO_SETTINGS_MODULE mysite.settings.admin
    ...
    PythonInterpreter mysite.admin
</Location>

This configuration seems to work for me. The PythonInterpreter directive is documented at ​http://www.dusek.ch/manual/apache/mod_python/dir-other-pi.html.

[Adrian Holovaty]

Fixed in [277].