Bringing CPAN,Gems, PIP, PyPi, etc. under APT package management

[Keith Christian <keith1christian@gmail.com>]

Are there any methods to create Debian packages for these (and
similar) package tools (and the files they install) so that Debian's
native packaging system has "inventory control" everything?

I realize that software has been installed outside of APT's purview
since the beginnings of Debian, but I wonder if there is any effort to
corral these other packaging systems so APT can be the tool of choice
for all package management.