Just a couple things from me ;)
- The testing version of mod_perl (libapache-mod-perl) is broken in debian (its compiled for 5.6.0, and perl testing version is 5.6.1). So you need to get the source with apt-get --build source libapache-mod-perl
- Your 5th is unecessary, since modperl overwrites the core print so that it is transparent that you are using modperl.
- There is a mod_python...
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