[3.13] gh-130959: Reject whitespace in fractions, in pure Python fromisoformat() (#130962)#131076
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vstinner merged 1 commit intopython:3.13from Mar 11, 2025
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…isoformat()` (python#130962) Fix the pure Python implementation of `fromisoformat()` to reject any non-digit characters, including whitespace, in the fractional part of time specification. This makes the behavior consistent with the C implementation, and prevents incorrect parsing of these fractions (e.g. `.400 ` would be misinterpreted as `.04`). Co-authored-by: Peter Bierma <zintensitydev@gmail.com> Co-authored-by: Paul Ganssle <1377457+pganssle@users.noreply.github.com> (cherry picked from commit 33494b4)
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@mgorny: Would you mind to double check this backport to 3.13? I had to fix merge conflicts. |
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Don't see anything obviously wrong, and the tests passed. Thanks!
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Thanks @vstinner for the PR 🌮🎉.. I'm working now to backport this PR to: 3.12. |
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GH-131086 is a backport of this pull request to the 3.12 branch. |
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…n `fromisoformat()` (pythonGH-130962) (pythonGH-131076) pythongh-130959: Reject whitespace in fractions, in pure Python `fromisoformat()` (pythonGH-130962) Fix the pure Python implementation of `fromisoformat()` to reject any non-digit characters, including whitespace, in the fractional part of time specification. This makes the behavior consistent with the C implementation, and prevents incorrect parsing of these fractions (e.g. `.400 ` would be misinterpreted as `.04`). Co-authored-by: Peter Bierma <zintensitydev@gmail.com> Co-authored-by: Paul Ganssle <1377457+pganssle@users.noreply.github.com> (cherry picked from commit 33494b4) (cherry picked from commit 27fd328) Co-authored-by: Victor Stinner <vstinner@python.org> Co-authored-by: Michał Górny <mgorny@gentoo.org>
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…mat()` (GH-130962) (GH-131076) (#131086) Fix the pure Python implementation of `fromisoformat()` to reject any non-digit characters, including whitespace, in the fractional part of time specification. This makes the behavior consistent with the C implementation, and prevents incorrect parsing of these fractions (e.g. `.400 ` would be misinterpreted as `.04`). (cherry picked from commit 33494b4) (cherry picked from commit 27fd328) Co-authored-by: Victor Stinner <vstinner@python.org> Co-authored-by: Michał Górny <mgorny@gentoo.org>
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Fix the pure Python implementation of
fromisoformat()to reject any non-digit characters, including whitespace, in the fractional part of time specification. This makes the behavior consistent with the C implementation, and prevents incorrect parsing of these fractions (e.g..400would be misinterpreted as.04).Co-authored-by: Peter Bierma zintensitydev@gmail.com
Co-authored-by: Paul Ganssle 1377457+pganssle@users.noreply.github.com
(cherry picked from commit 33494b4)
fromisoformat()handles times with trailing spaces inconsistently with the C extension #130959