Fix annotation for Python < 3.9

python · Feb 11, 2024 · 1c33add · 1c33add
1 parent 30c72e1
commit 1c33add
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mypy/checker.py b/mypy/checker.py
@@ -5129,7 +5129,7 @@ def visit_match_stmt(self, s: MatchStmt) -> None:
     def _get_recursive_sub_patterns_map(
         self, expr: Expression, typ: Type
     ) -> dict[Expression, Type]:
-        sub_patterns_map = dict[Expression, Type]()
+        sub_patterns_map: dict[Expression, Type] = {}
         typ_ = get_proper_type(typ)
         if isinstance(expr, TupleExpr) and isinstance(typ_, TupleType):
             # When matching a tuple expression with a sequence pattern, narrow individual tuple items