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[3.14] gh-138804: Check type in shlex.quote (GH-138809) (#138846)

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Co-authored-by: Christoph Walcher <christoph-wa@gmx.de>
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Miss Islington (bot) 2025-09-13 20:29:50 +02:00 • committed by GitHub
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3
Lib/shlex.py
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@ -322,6 +322,9 @@ def quote(s):
if not s:
return "''"
if not isinstance(s, str):
raise TypeError(f"expected string object, got {type(s).__name__!r}")
# Use bytes.translate() for performance
safe_chars = (b'%+,-./0123456789:=@'
b'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'

3
Lib/test/test_shlex.py
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@ -330,6 +330,7 @@ def testQuote(self):
unsafe = '"`$\\!' + unicode_sample
self.assertEqual(shlex.quote(''), "''")
self.assertEqual(shlex.quote(None), "''")
self.assertEqual(shlex.quote(safeunquoted), safeunquoted)
self.assertEqual(shlex.quote('test file name'), "'test file name'")
for u in unsafe:
@ -338,6 +339,8 @@ def testQuote(self):
for u in unsafe:
self.assertEqual(shlex.quote("test%s'name'" % u),
"'test%s'\"'\"'name'\"'\"''" % u)
self.assertRaises(TypeError, shlex.quote, 42)
self.assertRaises(TypeError, shlex.quote, b"abc")
def testJoin(self):
for split_command, command in [

3
Misc/NEWS.d/next/Library/2025-09-12-01-01-05.gh-issue-138804.46ZukT.rst Normal file
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@ -0,0 +1,3 @@
Raise :exc:`TypeError` instead of :exc:`AttributeError` when an argument of
incorrect type is passed to :func:`shlex.quote`. This restores the behavior of
the function prior to 3.14.