[1.5.x] Imported copyreg from six.moves

django/utils/functional.py

@@ -4,11 +4,7 @@ from functools import wraps, update_wrapper
 import sys
 
 from django.utils import six
-
-try:
-    import copyreg
-except ImportError:
-    import copy_reg as copyreg
+from django.utils.six.moves import copyreg
 
 
 # You can't trivially replace this `functools.partial` because this binds to