Close #18635: Move class level private attribute from instance to class.
diff --git a/Lib/enum.py b/Lib/enum.py
index 33af042..34eb7b8 100644
--- a/Lib/enum.py
+++ b/Lib/enum.py
@@ -127,6 +127,7 @@
enum_class = super().__new__(metacls, cls, bases, classdict)
enum_class._member_names_ = [] # names in definition order
enum_class._member_map_ = OrderedDict() # name->value map
+ enum_class._member_type_ = member_type
# Reverse value->name map for hashable values.
enum_class._value2member_map_ = {}
@@ -159,7 +160,6 @@
if not hasattr(enum_member, '_value_'):
enum_member._value_ = member_type(*args)
value = enum_member._value_
- enum_member._member_type_ = member_type
enum_member._name_ = member_name
enum_member.__init__(*args)
# If another member with the same value was already defined, the
diff --git a/Lib/test/test_enum.py b/Lib/test/test_enum.py
index 91c4b69..b959e97 100644
--- a/Lib/test/test_enum.py
+++ b/Lib/test/test_enum.py
@@ -583,6 +583,24 @@
option3 = 3
self.assertEqual(int(MailManOptions.option1), 1)
+ def test_introspection(self):
+ class Number(IntEnum):
+ one = 100
+ two = 200
+ self.assertIs(Number.one._member_type_, int)
+ self.assertIs(Number._member_type_, int)
+ class String(str, Enum):
+ yarn = 'soft'
+ rope = 'rough'
+ wire = 'hard'
+ self.assertIs(String.yarn._member_type_, str)
+ self.assertIs(String._member_type_, str)
+ class Plain(Enum):
+ vanilla = 'white'
+ one = 1
+ self.assertIs(Plain.vanilla._member_type_, object)
+ self.assertIs(Plain._member_type_, object)
+
def test_no_such_enum_member(self):
class Color(Enum):
red = 1