[mod_python] Install Question

Jon McLachlan mcla0181 at umn.edu
Sun Mar 11 22:11:52 EST 2007


  I am trying to install mod_python on apache 2.2.4, running SuSE (uname 
-a = Linux neo #1 Wed Dec 13 09:34:50 UTC 2006 
i686 i686 i386 GNU/Linux).  I have not encountered any strange behavior 
while following the documented install process described at 
http://www.modpython.org/live/current/doc-html/inst-compiling.html.  I 
am primarily interested in installing mod_python as a DSO on apache, 
because my primary use is for trac.  Whenever I attempt to use the 
mod_python handler for a specific Directory, Location, or VM as defined 
in the apache's configuration, it returns an internal server error to 
the client.  Further, the error_log reports the following:

[Sun Mar 11 21:53:30 2007] [error] make_obcallback: could not call init.\n
TypeError: init() takes no arguments (2 given)
[Sun Mar 11 21:53:30 2007] [error] make_obcallback: mod_python version 
mismatch, expected '3.3.1', found '<unknown>'.
[Sun Mar 11 21:53:30 2007] [error] make_obcallback: mod_python modules 
location '/usr/lib/python2.4/site-packages/mod_python/__init__.pyc'.
[Sun Mar 11 21:53:30 2007] [error] get_interpreter: no interpreter 
callback found.
[Sun Mar 11 21:53:30 2007] [error] [client] 
python_handler: Can't get/create interpreter.

The trouble shooting guide at 
http://www.modpython.org/live/current/doc-html/inst-trouble.html did not 
help much.
The FAQ seemed hopeful at first, but after the faq for "init" redirected 
me to http://www.modpython.org/FAQ/faqw.py?req=show&file=faq02.001.htp I 
am still yet to resolve this issue.

I am certain that the files in 
"/usr/lib/python2.4/site-packages/mod_python/*" are accessible by the 
apache username/group.  I know that adding a PYTHONHOME env variable for 
apache, only complicates things by making the module unloadable (even 
when this points to the correct, and readable&executable, python dir, 
because apache always seems to mangle the path while, this is funny, 
"looking for python").  I have tried "strace httpd -X" but, I have not 
discovered any extra clues as to what is going on - only similar 
information as described above in the error logs.  I am entirely perplex 
by the elusive culprit behind this bug.  I know that it must ultimately 
be something I am not understanding, though, so here I plead to a more 
practiced group.

Any thoughts, comments, or advice are greatly appreciated.

Best Regards,

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