[issue42955] Add sys.module_names: list of stdlib module names (Python and extension modules)

[STINNER Victor]

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


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pull_requests: +23082
pull_request: https://github.com/python/cpython/pull/24258

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42955>
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