mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-09 03:19:15 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

[3.12] GH-110488: Fix two small issues in pathlib.PurePath.with_name() (GH-110651) (#110678)

Browse source 
Ensure that `PurePath('foo/a').with_name('.')` raises `ValueError`

Ensure that `PureWindowsPath('foo/a').with_name('a:b')` does not raise
`ValueError`.

(cherry picked from commit b5f7777cb3)
This commit is contained in:
Barney Gale 2023-10-11 05:30:23 +01:00 • committed by GitHub
parent be381b5df5
commit 9ffef4d797
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
3 changed files with 15 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

3
Lib/pathlib.py
View file

@ -630,8 +630,7 @@ class PurePath(object):
if not self.name:
raise ValueError("%r has an empty name" % (self,))
f = self._flavour
drv, root, tail = f.splitroot(name)
if drv or root or not tail or f.sep in tail or (f.altsep and f.altsep in tail):
if not name or f.sep in name or (f.altsep and f.altsep in name) or name == '.':
raise ValueError("Invalid name %r" % (name))
return self._from_parsed_parts(self.drive, self.root,
self._tail[:-1] + [name])

14
Lib/test/test_pathlib.py
View file

@ -546,6 +546,7 @@ class _BasePurePathTest(object):
self.assertRaises(ValueError, P('.').with_name, 'd.xml')
self.assertRaises(ValueError, P('/').with_name, 'd.xml')
self.assertRaises(ValueError, P('a/b').with_name, '')
self.assertRaises(ValueError, P('a/b').with_name, '.')
self.assertRaises(ValueError, P('a/b').with_name, '/c')
self.assertRaises(ValueError, P('a/b').with_name, 'c/')
self.assertRaises(ValueError, P('a/b').with_name, 'c/d')
@ -563,6 +564,7 @@ class _BasePurePathTest(object):
self.assertRaises(ValueError, P('.').with_stem, 'd')
self.assertRaises(ValueError, P('/').with_stem, 'd')
self.assertRaises(ValueError, P('a/b').with_stem, '')
self.assertRaises(ValueError, P('a/b').with_stem, '.')
self.assertRaises(ValueError, P('a/b').with_stem, '/c')
self.assertRaises(ValueError, P('a/b').with_stem, 'c/')
self.assertRaises(ValueError, P('a/b').with_stem, 'c/d')
@ -1167,8 +1169,10 @@ class PureWindowsPathTest(_BasePurePathTest, unittest.TestCase):
self.assertRaises(ValueError, P('c:').with_name, 'd.xml')
self.assertRaises(ValueError, P('c:/').with_name, 'd.xml')
self.assertRaises(ValueError, P('//My/Share').with_name, 'd.xml')
self.assertRaises(ValueError, P('c:a/b').with_name, 'd:')
self.assertRaises(ValueError, P('c:a/b').with_name, 'd:e')
self.assertEqual(str(P('a').with_name('d:')), '.\\d:')
self.assertEqual(str(P('a').with_name('d:e')), '.\\d:e')
self.assertEqual(P('c:a/b').with_name('d:'), P('c:a/d:'))
self.assertEqual(P('c:a/b').with_name('d:e'), P('c:a/d:e'))
self.assertRaises(ValueError, P('c:a/b').with_name, 'd:/e')
self.assertRaises(ValueError, P('c:a/b').with_name, '//My/Share')
@ -1181,8 +1185,10 @@ class PureWindowsPathTest(_BasePurePathTest, unittest.TestCase):
self.assertRaises(ValueError, P('c:').with_stem, 'd')
self.assertRaises(ValueError, P('c:/').with_stem, 'd')
self.assertRaises(ValueError, P('//My/Share').with_stem, 'd')
self.assertRaises(ValueError, P('c:a/b').with_stem, 'd:')
self.assertRaises(ValueError, P('c:a/b').with_stem, 'd:e')
self.assertEqual(str(P('a').with_stem('d:')), '.\\d:')
self.assertEqual(str(P('a').with_stem('d:e')), '.\\d:e')
self.assertEqual(P('c:a/b').with_stem('d:'), P('c:a/d:'))
self.assertEqual(P('c:a/b').with_stem('d:e'), P('c:a/d:e'))
self.assertRaises(ValueError, P('c:a/b').with_stem, 'd:/e')
self.assertRaises(ValueError, P('c:a/b').with_stem, '//My/Share')

4
Misc/NEWS.d/next/Library/2023-10-10-22-54-56.gh-issue-110488.2I7OiZ.rst Normal file
View file

@ -0,0 +1,4 @@
Fix a couple of issues in :meth:`pathlib.PurePath.with_name`: a single dot
was incorrectly considered a valid name, and in :class:`PureWindowsPath`, a
name with an NTFS alternate data stream, like ``a:b``, was incorrectly
considered invalid.