gh-131484: Document that directory and zipfile script targets stay on sys.path - #154853
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gh-131484: Document that directory and zipfile script targets stay on sys.path#154853yhay81 wants to merge 1 commit into
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… sys.path -P, -I and PYTHONSAFEPATH drop the implicit sys.path[0] entries (current directory, script directory, empty string), but a directory or zipfile named as the script argument is still prepended: that entry is used to locate __main__.py and makes other modules stored in the target importable. The -P section currently enumerates only the -m, script and -c/REPL cases. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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The
-Pdocumentation covers only the-m/ script /-c/ REPL cases. A directoryor zipfile passed as the script argument stays at the start of
sys.path, insafe-path and isolated modes alike: that entry is used to locate
__main__and makesother modules stored in the target importable.
This documents existing behavior; there is no code change. It assumes keeping the
named target is intended — if it should change instead, please close this; the
analysis is in #131484.
Verified with 3.14.6 and main at 8b048eb.
AI-assisted; I reviewed the changes and verified the behavior and cited source myself.