Import upstream CPython branch '3.14'

Summary:
Python `3.14.0rc2+` (`3.14`) was **published** on 2025-09-13 18:29:50+00:00.

# Commit Info

Base: (`3.14.0rc2+`) - `fbfbfdf33c3cfe00c6319423ac69f5fb4e877034` (commit date: 2025-09-12 13:23:03+00:00)
Imported: (`3.14.0rc2+`) - `3.14` (commit date: 2025-09-13 18:29:50+00:00)

# Files added

```
Misc/NEWS.d/next/Library/2025-09-12-01-01-05.gh-issue-138804.46ZukT.rst
```

Reviewed By: itamaro

Differential Revision: D82398872

fbshipit-source-id: 58e9d763dfcb2a4b4ad0ecc10b762b3249776090

Author: generatedunixname1734921407115435

Lib/shlex.py

@@ -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_'

Lib/test/test_shlex.py

@@ -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 [

Misc/NEWS.d/next/Library/2025-09-12-01-01-05.gh-issue-138804.46ZukT.rst

@@ -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.