[issue27807] Prevent site-packages .pth files from causing test_site failure: test_site.test_startup_imports() failure

[STINNER Victor]

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


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pull_requests: +18413
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/19060

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue27807>
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