always use pex thru the cli, never as a python module #22979
Merged
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The stable interface for using Pex is the cli, not as a Python module. We removed most of these in #21515 but a few test dependencies remained. Removing the last of those allows us to get Pex out of the lockfile and make updating Pex versions smoother.
AI Notice: I used Claude to find the PexPEX based approach. This looks reasonable to me but does not have a ton of idiomatic examples.