GH-130645: Default to color help in argparse #136809
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StanFromIreland
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Co-authored-by: Łukasz Langa <lukasz@langa.pl>
ambv
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AA-Turner
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🤖 New build scheduled with the buildbot fleet by @hugovk for commit 0abf68e 🤖 Results will be shown at: https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F136809%2Fmerge If you want to schedule another build, you need to add the 🔨 test-with-buildbots label again. |
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savannahostrowski
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hugovk
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We've gotten a lot of approvals on this PR 😃 and I intend to merge it imminently. @hugovk We're good to get this into 3.14, yeah? If so, I'll add the backport to 3.14 label before merge. |
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Yes, good to backport to 3.14. |
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Thanks @pablogsal for the PR, and @savannahostrowski for merging it 🌮🎉.. I'm working now to backport this PR to: 3.14. |
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(cherry picked from commit acbe896cb12d6a92e6150fff22921756f6928035) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com> Co-authored-by: Łukasz Langa <lukasz@langa.pl> Co-authored-by: Adam Turner <9087854+aa-turner@users.noreply.github.com>
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GH-136886 is a backport of this pull request to the 3.14 branch. |
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) GH-130645: Default to color help in argparse (GH-136809) (cherry picked from commit acbe896) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com> Co-authored-by: Łukasz Langa <lukasz@langa.pl> Co-authored-by: Adam Turner <9087854+aa-turner@users.noreply.github.com>
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Colored help significantly improves readability and user experience by helping users visually group and separate different sections, options, and arguments. Modern terminals overwhelmingly support ANSI color codes, and most contemporary programming languages and CLI tools now default to colored output when appropriate.
This change aligns Python's argparse with current standards where color is the expected default behavior. Users find colored output particularly valuable for quickly scanning and understanding command-line help, as it creates natural visual hierarchy and reduces cognitive load when parsing complex option lists.
The existing color detection logic already gracefully falls back to plain text on unsupported terminals, ensuring backwards compatibility. Users who prefer monochrome output retain full control through standard terminal preferences and environment variables.
argparsehelp #130645