[issue40854] Allow overriding sys.platlibdir: add PYTHONPLATLIBDIR env var

[STINNER Victor]

Change by STINNER Victor <vstinner at python.org>:


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title: [Patch] Allow overriding sys.platlibdir: add PYTHONPLATLIBDIR env var -> Allow overriding sys.platlibdir: add PYTHONPLATLIBDIR env var

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40854>
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