Improved compatibility with py3.9

cad-polito-it · Aug 23, 2023 · 6f88519 · 6f88519
1 parent 47e0b5a
commit 6f88519
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/byron/classes/selement.py b/byron/classes/selement.py
@@ -41,7 +41,7 @@ class SElementMeta(type):
     BYRON_CLASS_ID: str
     BYRON_CLASS_NAME: str
     BYRON_CLASS_TAGS: tuple[str]
-    FORCED_PARENT: type | str | None
+    FORCED_PARENT: Optional[type | str]
 
     _counters = defaultdict(int)