Now is the right time to consider this subject. Python 3.7 and above does packaging and virtual environments with much less burden on the user than has previously been the case. Declaring Python 2 end of line means waving goodbye to eggs, pyenv and all that old stuff.

A point of terminology. A package is your game or library, when properly organised and declared as such.

There are two species of Python package:

A distribution is an installable, versioned release of that package. That release can come in at least three formats I can think of:

The point of this thread is to construct some guidance on how best to package and distribute both games and libraries to permit easy installation on all common target platforms (and we should probably define what we think those are).

One more input to this. A while back I wrote a step-by-step tutorial on namespace packages, and in what circumstances they can be useful. If someone can check it still works, I'd happily donate it to any documentation we come up with.