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gh-153711: Add runtime guards for dup3 & pipe2 - #155174

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encukou wants to merge 4 commits into
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encukou:dup3-pipe2
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gh-153711: Add runtime guards for dup3 & pipe2#155174
encukou wants to merge 4 commits into
python:mainfrom
encukou:dup3-pipe2

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@encukou

@encukou encukou commented Aug 4, 2026

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This is based on GH-154718 -- I made some changes, then checked @Vamsi-klu's closed PR and realized the work is already nearly done. So, credit where it's due.

This is for macOS only; extending to iOS & others should not be hard but it seems best to test on desktop first.

@ned-deily, do you have the hardware/software to test this easily?

Based on pythonGH-154718

Co-Authored-By: Vamsi-klu <nrvamsi13@gmail.com>
@encukou
encukou requested review from a team and ned-deily August 4, 2026 12:52
@encukou encukou changed the title Add runtime guards for dup3 & pipe2 gh-153711: Add runtime guards for dup3 & pipe2 Aug 4, 2026
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read-the-docs-community Bot commented Aug 4, 2026

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Documentation build overview

📚 cpython-previews | 🛠️ Build #33909977 | 📁 Comparing 9edc83d against main (ef0affb)

  🔍 Preview build  

2 files changed
± library/os.html
± whatsnew/changelog.html

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