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`posixpath.realpath('secretlink')` raises · Issue #118447 · python/cpython · GitHub

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posixpath.realpath('secretlink') raises #118447

Description

Bug report

Bug description:

GNU coreutils realpath -m doesn't raise an error for secret symlinks (no read permission):

wannes@Stefans-iMac dirs % sudo ls -l secret-symlink
l---------  1 wannes  staff  44 Jun 30  2023 secret-symlink -> /Users/wannes/path-picker/link-test/dirs/dir
wannes@Stefans-iMac dirs % grealpath -m secret-symlink
/Users/wannes/path-picker/link-test/dirs/secret-symlink

But posixpath.realpath() does:

>>> import posixpath
>>> posixpath.realpath("secret-symlink")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<frozen posixpath>", line 435, in realpath
  File "<frozen posixpath>", line 495, in _joinrealpath
PermissionError: [Errno 13] Permission denied: 'secret-symlink'

CPython versions tested on:

3.12

Operating systems tested on:

macOS

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