pex: switch to SCIE binary instead of PEX #21755
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tdyas
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fyi @cburroughs |
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The draft needs a bunch of work to stop trying to find compatible Python interpreters for Pex invocations since it now comes with its own interpreter. |
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Switch to the SCIE distribution of Pex (embedded Python interpreter) instead of using the PEX distribution of PEX.
One motive is to avoid a Pip bootstrapping problem which can result in the vendored Pip being used which does not support
--keyring-providerwhich will be needed for AWS CodeArtifact support being developed here. The 3.12.x+ Python interpreter in the Pex SCIE is new enough to have a Pip which supports that option.There are general benefits as well for reducing the variance across systems in terms of only a single Python interpreter version being used to invoke Pex.