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GeezerVison is showing github.com — gh-82626: Schedule removal of bool used as file descriptor by vstinner · Pull Request #145469 · python/cpython

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@vstinner

@vstinner vstinner commented Mar 3, 2026 •
edited by github-actions Bot
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  • Issue: os.path.exists() takes bool as argument and returns True #82626

📚 Documentation preview 📚: https://cpython-previews--145469.org.readthedocs.build/

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@vstinner
pythongh-82626: Schedule removal of bool used as file descriptor
36c2ac1
@vstinner vstinner added the skip news label Mar 3, 2026
@bedevere-app bedevere-app Bot added the docs Documentation in the Doc dir label Mar 3, 2026
@github-project-automation github-project-automation Bot added this to Docs PRs Mar 3, 2026
@bedevere-app bedevere-app Bot added the awaiting core review label Mar 3, 2026
@github-project-automation github-project-automation Bot moved this to Todo in Docs PRs Mar 3, 2026
@bedevere-app bedevere-app Bot mentioned this pull request Mar 3, 2026
os.path.exists() takes bool as argument and returns True #82626
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@vstinner

vstinner commented Mar 3, 2026

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Since Python 3.13, Python emits a DeprecationWarning when a boolean value is used as a file descriptor. I propose to schedule the removal in Python 3.18 of bool support when a file descriptor is expected. So the feature is deprecated for 5 releases (3.13 to 3.17), as recommended by PEP 387.

cc @serhiy-storchaka @pitrou
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@vstinner
vstinner merged commit 2acfad9 into python:main Mar 5, 2026
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@vstinner
vstinner deleted the deprecate_bool_fd branch March 5, 2026 11:32
@github-project-automation github-project-automation Bot moved this from Todo to Done in Docs PRs Mar 5, 2026
@bedevere-app bedevere-app Bot removed the awaiting core review label Mar 5, 2026
ljfp pushed a commit to ljfp/cpython that referenced this pull request Apr 25, 2026
@vstinner @ljfp
pythongh-82626: Schedule removal of bool used as file descriptor (pyt…
c710fe1 
…hon#145469)
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@vstinner
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