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pathlib.PurePath.match() can incorrectly match empty path #106330

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pathlib.PurePath.match() can incorrectly match empty path#106330
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3.12only security fixes3.13only security fixestopic-pathlibtype-bugAn unexpected behavior, bug, or error

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@barneygale
barneygale
opened on Jul 2, 2023
>>> from pathlib import PurePath
>>> PurePath().match('*')
True

This should be false, because a * segment always consumes exactly one path component, but empty paths have 0 components.

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  1. barneygale
    added
    type-bugAn unexpected behavior, bug, or error
    3.12only security fixes
    topic-pathlib
    3.13only security fixes
    on Jul 2, 2023
  2. AlexWaygood
    changed the title [-]`pathlib.PurePath.match()` can incorrectly match empty patch[/-] [+]`pathlib.PurePath.match()` can incorrectly match empty path[/+] on Jul 2, 2023

  3. barneygale commented on Jul 2, 2023

    @barneygale
    barneygale
    on Jul 2, 2023
    ContributorAuthor

    Caused by #101398. In Python 3.13 this can also affect glob() results.

  4. barneygale
    added 5 commits that reference this issue on Jul 2, 2023

    pythonGH-106330: Fix matching of empty path in `pathlib.PurePath.matc…

    4cc5778

    Merge branch 'main' into pythongh-106330-fix-match-empty-path

    6c1e28a

    GH-106330: Fix matching of empty path in `pathlib.PurePath.match()` (G…

    b4efdf8

    [3.12] pythonGH-106330: Fix matching of empty path in `pathlib.PurePa…

    e320740

    [3.12] GH-106330: Fix matching of empty path in `pathlib.PurePath.mat…

    d5ed72b

  5. barneygale commented on Jul 4, 2023

    @barneygale
    barneygale
    on Jul 4, 2023
    ContributorAuthor

    Fixed!

  6. barneygale
    closed this as completedon Jul 4, 2023
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