--- enum.py	2018-05-07 11:22:26.839011452 +0200
+++ my_enum.py	2018-05-07 11:22:50.607255624 +0200
@@ -218,10 +218,10 @@
                         enum_member._value_ = value
                     else:
                         enum_member._value_ = member_type(*args)
-            value = enum_member._value_
             enum_member._name_ = member_name
             enum_member.__objclass__ = enum_class
             enum_member.__init__(*args)
+            value = enum_member._value_
             # If another member with the same value was already defined, the
             # new member becomes an alias to the existing one.
             for name, canonical_member in enum_class._member_map_.items():