improve performance of StaticPartitionsDefinition.__eq__ (#11775)

### Summary & Motivation ### How I Tested These Changes
dagster-io · Jan 18, 2023 · 8e7ea32 · 8e7ea32
1 parent a54d170
commit 8e7ea32
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/python_modules/dagster/dagster/_core/definitions/partition.py b/python_modules/dagster/dagster/_core/definitions/partition.py
@@ -306,9 +306,8 @@ def __hash__(self):
         return hash(self.__repr__())
 
     def __eq__(self, other) -> bool:
-        return (
-            isinstance(other, StaticPartitionsDefinition)
-            and self._partitions == other.get_partitions()
+        return isinstance(other, StaticPartitionsDefinition) and (
+            self is other or self._partitions == other.get_partitions()
         )
 
     def __repr__(self) -> str: