gh-116600: [Enum] fix global Flag repr (GH-116615)

* and fix global flag repr

* Update Misc/NEWS.d/next/Library/2024-03-11-12-11-10.gh-issue-116600.FcNBy_.rst

Co-authored-by: Kirill Podoprigora <[email protected]>

Author: ethanfurman

Lib/enum.py

@@ -1680,7 +1680,7 @@ def global_flag_repr(self):
     cls_name = self.__class__.__name__
     if self._name_ is None:
         return "%s.%s(%r)" % (module, cls_name, self._value_)
-    if _is_single_bit(self):
+    if _is_single_bit(self._value_):
         return '%s.%s' % (module, self._name_)
     if self._boundary_ is not FlagBoundary.KEEP:
         return '|'.join(['%s.%s' % (module, name) for name in self.name.split('|')])

Lib/test/test_enum.py

@@ -4063,6 +4063,8 @@ def test_global_repr_conform1(self):
 
     @reraise_if_not_enum(NoName)
     def test_global_enum_str(self):
+        self.assertEqual(repr(NoName.ONE), 'test_enum.ONE')
+        self.assertEqual(repr(NoName(0)), 'test_enum.NoName(0)')
         self.assertEqual(str(NoName.ONE & NoName.TWO), 'NoName(0)')
         self.assertEqual(str(NoName(0)), 'NoName(0)')
 

Misc/NEWS.d/next/Library/2024-03-11-12-11-10.gh-issue-116600.FcNBy_.rst

@@ -0,0 +1 @@
+Fix :func:`repr` for global :class:`~enum.Flag` members.