[mod_python] instablility in mod_python or apache

hi!

i am running apache2 worker 2.0.47, mod_python 2.7.8 and python 2.3.2,
and have some stability problems.

i have made a simple web-page that uses mod_python.publisher. in
apache2.conf:

AddHandler python-program .py
PythonHandler mod_python.publisher
PythonDebug On

when i'm reloading the page, it seams random whether it will load
properly or crash with 

"Not Found

The requested URL /~nilsgri/test.py was not found on this server."

i would guess it has something to do with caching, as when i restart
apache2, sometimes the it works every other or so time i reload the
page, and sometimes it works every time, and sometimes never.


i have tried to track down where these errors occur, and have found that
exeptions are thrown at the following locations:

mod_python.publisher: 
    resolve_object()
        the line "obj = getattr(obj, obj_str)" throws AttributeError
        sometimes. 
        
        in this case: 
            module_name=test, 
            config={'PythonDebug': '1'},
            path=['/home/nilsgri/public_html']
        which seems right

mod_python.publisher:
    import_module()
        "if (not file or path and not
                filter(lambda a: os.path.dirname(file).find(a) == 0,
                path)):" hits sometimes

what could be wrong?

is there any way of turning of caching of python modules?


i use the apache2 worker thread module, and i have also tried prefork. i
have not tried perchild or threadpool. should i?


klem fra nils

-- 
nils grimsmo <nilsgri at idi.ntnu.no>
"why is this thus? what is the reason of this thusness"
                                         - artemus ward