Issue #21118: str.translate() now raises a ValueError, not a TypeError, if the

replacement character is bigger than U+10ffff code point.

Lib/test/test_codeccallbacks.py

@@ -819,7 +819,7 @@ class CodecCallbackTest(unittest.TestCase):
             def __getitem__(self, key):
                 raise ValueError
         #self.assertRaises(ValueError, "\xff".translate, D())
-        self.assertRaises(TypeError, "\xff".translate, {0xff: sys.maxunicode+1})
+        self.assertRaises(ValueError, "\xff".translate, {0xff: sys.maxunicode+1})
         self.assertRaises(TypeError, "\xff".translate, {0xff: ()})
 
     def test_bug828737(self):