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Default to stdout isatty for colour detection instead of stderr #128595
Description
Bug report
Bug description:
The terminal colour detection defaults to checking stderr's isatty, rather than stdout.
As suggested at #128317 (comment), let's default to checking stdout's isatty rather than stderr's.
Here some example output, plus when piping it:
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CPython versions tested on:
3.13, CPython main branch
Operating systems tested on:
macOS
Linked PRs
- gh-128595: Default to stdout isatty for colour detection instead of stderr #128498
- gh-128595: Add test class helper to force no terminal colour #128687
- [3.13] gh-128595: Add test class helper to force no terminal colour (GH-128687) #128778
- [3.13] gh-128595: Default to stdout isatty for colour detection instead of stderr (GH-128498) #129057
- gh-128595: Fix
test__colorizeunexpected keyword argument 'file' on buildbots #129070
Activity
gh-128595: Add test class helper to force no terminal colour (#128687)
[3.13] pythongh-128595: Add test class helper to force no terminal co…
[3.13] gh-128595: Add test class helper to force no terminal colour (G…
gh-128595: Default to stdout isatty for colour detection instead of s…
[3.13] pythongh-128595: Default to stdout isatty for colour detection…
[3.13] pythongh-128595: Default to stdout isatty for colour detection…
pythongh-128595: Default to stdout isatty for colour detection instea…
gh-128595: Fix `test__colorize` unexpected keyword argument 'file' on…
pythongh-128595: Fix `test__colorize` unexpected keyword argument 'fi…
[3.13] gh-128595: Default to stdout isatty for colour detection inste…