[wumpus]

I had no idea pendulum existed, is there some way I should have looked it up? None of the code in tz-aware packages I've ever read used it, for example.

[sametmax]

Looking up is not a solved problem no.

I usually check the "awesome python list", ask on reddit and twitter, and then do some google foo. I select 3 packages and do some tests.

I got nothing better than that.

[stevesimmons]

Another good source is find talks at recent PyCon or PyData conferences that survey that topic, then pick the packages they recommend.