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Title: gh-75723: Idempotent `.pth` execution in `site.addsitedir` by asottile · Pull Request #147951 · python/cpython · GitHub

Open Graph Title: gh-75723: Idempotent `.pth` execution in `site.addsitedir` by asottile · Pull Request #147951 · python/cpython

X Title: gh-75723: Idempotent `.pth` execution in `site.addsitedir` by asottile · Pull Request #147951 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: Issue: pth files in site-packages of venvs are executed twice #75723

X Description: Issue: pth files in site-packages of venvs are executed twice #75723

Opengraph URL: https://github.com/python/cpython/pull/147951

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gh-75723: Idempotent .pth execution in site.addsitedirhttps://github.com/python/cpython/pull/147951/commits#top
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Idempotent `.pth` execution in `site.addsitedir`https://github.com/python/cpython/pull/147951/commits/6c342df17bc3fd46d8142829d9f4a8f718d005a4
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Merge branch 'main' into asottile-gh-75723https://github.com/python/cpython/pull/147951/commits/96ed0e8c0af7b9164d6a57948bfcfbbd1f445b9b
96ed0e8https://github.com/python/cpython/pull/147951/commits/96ed0e8c0af7b9164d6a57948bfcfbbd1f445b9b
https://github.com/python/cpython/tree/96ed0e8c0af7b9164d6a57948bfcfbbd1f445b9b
potentially fix monkeypatch leak?https://github.com/python/cpython/pull/147951/commits/c44e1920baadeaa3df0c5d427d77421c7e287eff
https://github.com/asottile
asottilehttps://github.com/python/cpython/commits?author=asottile
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https://github.com/python/cpython/tree/c44e1920baadeaa3df0c5d427d77421c7e287eff
fix blind copy paste of recommendationhttps://github.com/python/cpython/pull/147951/commits/f077abd6fb14051c1a0dc9851adbb34c34c8c9d3
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https://github.com/python/cpython/tree/f077abd6fb14051c1a0dc9851adbb34c34c8c9d3
Update 2026-03-31-16-15-15.gh-issue-75723.BZ4Rsn.rsthttps://github.com/python/cpython/pull/147951/commits/aeee2ff942def6cd192b763f57a9f9fbdcbe2fc5
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https://github.com/python/cpython/tree/aeee2ff942def6cd192b763f57a9f9fbdcbe2fc5
Merge remote-tracking branch 'origin/main' into asottile-gh-75723https://github.com/python/cpython/pull/147951/commits/4005472a039b05dd8d59857cdad88600b8195f18
https://github.com/asottile
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https://github.com/python/cpython/tree/4005472a039b05dd8d59857cdad88600b8195f18
fix implicit merge conflict with 24c4aecc1674414d3dc3238625802778c4ad29d2https://github.com/python/cpython/pull/147951/commits/66ebfc9cc504ac653015bef2b1dd116bf5ca9eb7
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