Issue 5041: ctypes unwilling to allow pickling wide character.

Lib/ctypes/test/test_pickling.py

@@ -66,6 +66,11 @@ class PickleTest(unittest.TestCase):
             ]:
             self.assertRaises(ValueError, lambda: self.dumps(item))
 
+    def test_wchar(self):
+        pickle.dumps(c_char("x"))
+        # Issue 5049
+        pickle.dumps(c_wchar(u"x"))
+
 class PickleTest_1(PickleTest):
     def dumps(self, item):
         return pickle.dumps(item, 1)

Misc/NEWS

@@ -244,6 +244,8 @@ Core and Builtins
 Library
 -------
 
+- Issue #5041: ctypes does now allow pickling wide character.
+
 - Issue #5812: For the two-argument form of the Fraction constructor,
   Fraction(m, n), m and n are permitted to be arbitrary Rational
   instances.

Modules/_ctypes/_ctypes.c

@@ -1952,7 +1952,7 @@ SimpleType_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 			ml = &c_void_p_method;
 			stgdict->flags |= TYPEFLAG_ISPOINTER;
 			break;
-		case 'u':
+		case 's':
 		case 'X':
 		case 'O':
 			ml = NULL;