Implementation differences between mod_python and mod_wsgi

Question

I have an webapplication that was originall implemented written with mod_python in mind.

I have been able to port it to mod_wsgi, but I worry that there might be some subtle differences in the way that global variables or other features are handled.

Most of the information that I have seen on mod_python and mod_wsgi is a comparison of the memory footprint, such as the comparison here:

https://modwsgi.readthedocs.org/en/latest/frequently-asked-questions/

Are there any implementation issues in the two apache modules that will cause differences in behaviour between mod_python and mod_wsgi.

Answer 1

You will have to enumerate what you mean by 'other features'. As to global variables, it is explained in:

• http://code.google.com/p/modwsgi/wiki/ProcessesAndThreading

That document was effectively a cut and paste, with some extra details, of what also occurred in mod_python. So how to deal with global and cross process data is more or less the same.