bpo-41811: create SortKey members using first given value (GH-22316) (GH-22325)

miss-islington · ethanfurman · web-flow · commit 0e4d526de47e · 2020-09-19T12:56:13.000-07:00
(cherry picked from commit ae0d2a3) Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
diff --git a/Lib/pstats.py b/Lib/pstats.py
@@ -45,9 +45,9 @@ class SortKey(str, Enum):
     TIME = 'time', 'tottime'
 
     def __new__(cls, *values):
-        obj = str.__new__(cls)
-
-        obj._value_ = values[0]
+        value = values[0]
+        obj = str.__new__(cls, value)
+        obj._value_ = value
         for other_value in values[1:]:
             cls._value2member_map_[other_value] = obj
         obj._all_values = values
diff --git a/Lib/test/test_pstats.py b/Lib/test/test_pstats.py
@@ -95,5 +95,9 @@ def pass3(): pass
         self.assertIn('pass2', funcs_called)
         self.assertIn('pass3', funcs_called)
 
+    def test_SortKey_enum(self):
+        self.assertEqual(SortKey.FILENAME, 'filename')
+        self.assertNotEqual(SortKey.FILENAME, SortKey.CALLS)
+
 if __name__ == "__main__":
     unittest.main()
