gh-75221: Search __main__ only in the executed directory or zipfile - #155256
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gh-75221: Search __main__ only in the executed directory or zipfile#155256serhiy-storchaka wants to merge 1 commit into
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…file runpy.run_path() and the execution of a directory or a zipfile searched the __main__ module in the whole sys.path, so an existing __main__ module located elsewhere could be executed instead of failing. As a result, running Lib/test/test_runpy.py directly ran the whole test suite. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
serhiy-storchaka
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August 5, 2026 19:29
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runpy.run_path()and the execution of a directory or a zipfile searched the__main__module in the wholesys.path, so an existing__main__module located elsewhere could be executed instead of failing.As a result, running
Lib/test/test_runpy.pydirectly ran the whole test suite.The
__main__module is now searched only insys.path[0]-- the executed directory or zipfile.