psp (python server pages) code under mod_wsgi?

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+1 Q:

psp (python server pages) code under mod_wsgi?

Is there some way to run .psp (python server pages) code under apache + mod_wsgi? While we are moving towards newer wsgi based frameworks we still have some legacy code written in psp which runs under mod_python.

We'd like to be able to run it on the same server that hosts other wsgi based python code. In short - is there a way to support psp under mod_wsgi? Or are there any other tricks to at least allow mod_wsgi and mod_python to play nice in the same server?

-S

+1 A:

No, there is no port of mod_python PSP for mod_wsgi.

Yes, you can run mod_python and mod_wsgi on same server so long as both use same version of Python and both link dynamically with Python library. See:

http://code.google.com/p/modwsgi/wiki/InstallationIssues

It isn't recommended to run both together though as mod_wsgi then gets afflicted by the memory leaks due to mod_python, plus some other configurability in mod_wsgi is restricted due to mod_python controlling Python interpreter initialisation.

Graham Dumpleton 2010-01-27 01:38:16

Wouldn't running the WSGI apps in daemon mode mitigate the initialization issues?

Ignacio Vazquez-Abrams 2010-01-27 01:44:35

No, daemon mode processes are a fork of Apache parent and not a fork/exec like in FASTCGI. Thus there isn't the total isolation there is in FASTCGI. Being only a fork provides other benefits though as far as better integration with Apache and better process management. So, where you gain in one area, you loose in others.

Graham Dumpleton 2010-01-27 04:32:55

Thanks Graham - will play with the dual install and see what happens.

shreddd 2010-01-28 15:58:29

As described in the link, the issue was a mod_wsgi that had a dynamically linked libpython and a mod_python that had it statically linked. Recompiled mod_python to link against libpython dynamically and it seems to be working now. Thanks again.One more side note: mod_python won't link dynamically against libpython by default. Had to change the configure script to get this to work right. Need to change LDFLAGS="${LDFLAGS} -L${PyLIBPL}" to LDFLAGS="${LDFLAGS}"

shreddd 2010-01-28 20:39:05

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psp (python server pages) code under mod_wsgi?

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