I'm trying to 'learn me some python packaging,' but keep getting bogged down in all the different ways of doing things. So far I have encountered setuptools, easy-install, requirements.txt, setup.py, poetry, and just now I found out about something called PEAK ("python enterprise application kit"). Regarding the latter: is this even still relevant? The website appears to be from about 2004. Looks comprehensive, but I don't want to invest a bunch of time assimilating a methodology that is outdated.
P.S. I do not care about Python 2.X, as I am only using Python 3.7+. So that might be another factor.