PEP 665, take 2 -- A file format to list Python dependencies for reproducibility of an application

[groodt (Greg Roodt)]

@brettcannon

I’m personally not aware of anything requiring a PEP to make this work. What are you specifically thinking of?

This effectively:

@njs

I believe they assume that sdists always have the same requirements, so you can build locally to get the requirements once and then builds on other platforms will come out the same.

I’ve said it before but if this invariant is clarified / enforced (even if only via a standard and not directly in PyPI), I believe that it unlocks a huge amount of value and simplification towards a potential cross-platform lockfile.

Relevant bits of zen:

Special cases aren't special enough to break the rules.
Although practicality beats purity.