how to install automatically missing modules on a debian-system

[hugocoolens]

It often happens I start a python-script I wrote some time ago on another
system and get messages like "module_x is missing". I then perform an apt-cache search module_x, followed by an apt-get install name_of_missing_module.deb
I was wondering whether someone here has a kind of method which automatically
looks for the missing modules as debian-packages and offers to install them?

hugo