Description

assignee = 'https://github.com/akulakov'
closed_at = None
created_at = <Date 2021-10-25.19:20:55.106>
labels = ['type-bug', 'library', '3.9', '3.10', '3.11']
title = 'pathlib.Path.glob() does not list dangling symlink when pattern is the exact filename'
updated_at = <Date 2022-01-23.06:57:12.913>
user = 'https://github.com/raek'

activity = <Date 2022-01-23.06:57:12.913>
actor = 'andrei.avk'
assignee = 'andrei.avk'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2021-10-25.19:20:55.106>
creator = 'raek'
dependencies = []
files = []
hgrepos = []
issue_num = 45606
keywords = ['patch']
message_count = 4.0
messages = ['404996', '406643', '406644', '406645']
nosy_count = 3.0
nosy_names = ['kj', 'andrei.avk', 'raek']
pr_nums = ['29655']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue45606'
versions = ['Python 3.9', 'Python 3.10', 'Python 3.11']

Activity

1. raek commented on Oct 25, 2021

   

   raekmannequin

   on Oct 25, 2021

   MannequinAuthor

   More actions

   Create a symlink that points to file that doesn't exist:

   ln -s /nonexisting_file my_symlink
   

   Then try to glob for that symlink from Python using pathlib:

       python3
       >>> import pathlib
       >>> list(pathlib.Path(".").glob("my_symlink"))
       []
       >>> list(pathlib.Path(".").glob("my_symlink*"))
       [PosixPath('my_symlink')]

   I'm a bit surprised that these two globs do not return the same results. Personally I would expect both to find the symlink.

   Is this behaviour a bug or is it intentional?
2. raek

   added

   3.8 (EOL)end of lifeend of life

   3.10 (EOL)end of lifeend of life

   3.9 (EOL)end of lifeend of life

   stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on Oct 25, 2021
3. akulakov commented on Nov 20, 2021

   

   akulakov

   on Nov 20, 2021

   Contributor

   More actions

   The issue is that _PreciseSelector follows the symlink when it checks if a path exists before yielding it as a result.

   I've put up a PR with a fix; I've also added a follow_symlinks arg to exists() method because it seems more logical to be able to test if a path exists via the same method rather than having to also remember and to check for it being a symlink.

   I will add docs and news a bit later today or tomorrow.
4. akulakov

   assigned

   akulakov

   on Nov 20, 2021
5. akulakov commented on Nov 20, 2021

   

   akulakov

   on Nov 20, 2021

   Contributor

   More actions

   Rasmus: thanks for the report, it does seem like a bug to me.
6. 3 remaining items
7. akulakov

   changed the title [-]pathlib.Path.glob() does not list dangling symlink when pattern is the exact filenane[/-] [+]pathlib.Path.glob() does not list dangling symlink when pattern is the exact filename[/+] on Jan 23, 2022
8. akulakov

   added

   3.11only security fixesonly security fixes

   and removed

   3.8 (EOL)end of lifeend of life

   on Jan 23, 2022
9. akulakov

   changed the title [-]pathlib.Path.glob() does not list dangling symlink when pattern is the exact filenane[/-] [+]pathlib.Path.glob() does not list dangling symlink when pattern is the exact filename[/+] on Jan 23, 2022
10. ezio-melotti

    transferred this issue fromon Apr 10, 2022
11. serhiy-storchaka

    added this to Fnmatch and glob issueson May 19, 2022
12. brettcannon

    added

    topic-pathlib

    on Jun 21, 2022
13. barneygale

    added a commit that references this issue on May 3, 2023

    GH-89769: `pathlib.Path.glob()`: do not follow symlinks when checking…

    af886ff
14. barneygale commented on May 3, 2023

    

    barneygale

    on May 3, 2023

    Contributor

    More actions

    Fixed in 3.12: #29655 / af886ff
15. barneygale

    closed this as completedon May 3, 2023
16. github-project-automation

    moved this to Done in Fnmatch and glob issueson May 3, 2023
17. barneygale

    added

    3.12only security fixesonly security fixes

    and removed

    3.11only security fixesonly security fixes

    3.10 (EOL)end of lifeend of life

    3.9 (EOL)end of lifeend of life

    on May 3, 2023

Issue actions