gh-139452: Clarify redirect_stdout, stderr behavior #139490
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These don't "redirect" like a terminal where typically the file pointed to by fd 1 and 2 are made the "same" by the preparing process (ex. by `dup2` the given fd into that specific fd number). Rather, these context managers set the respective globals to the provided value. In most cases that should be a "file object".
cmaloney
commented
Oct 2, 2025
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@wolfgang-eder how does this look to you? |
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Please limit the edit to just |
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Thank you for improving the documentation. I am happy with the changes |
| Similar to :func:`~contextlib.redirect_stdout` but redirecting | ||
| :data:`sys.stderr` to another file or file-like object. | ||
| Similar to :func:`~contextlib.redirect_stdout` but redirecting the global | ||
| :data:`sys.stderr` to another value, typically a :term:`file object`. |
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Maybe "another target" would be better here than "another value"?
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@rhettinger to check my understanding: reduce to just the "file or file-like object." -> |
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These don't "redirect" like a terminal where typically the file pointed to by fd 1 and 2 are made the "same" (ex. by
dup2the given fd into that specific fd number). Rather, these context managers set the respective globals to the provided value. In most cases that should be a "file object".contextlib.redirect_stderr()#139452📚 Documentation preview 📚: https://cpython-previews--139490.org.readthedocs.build/