Remove unnecessary check

python · JukkaL · Jan 21, 2019 · Sep 20, 2018 · Sep 20, 2018 · Sep 20, 2018
commit 8c30c90a45b7e069cf005d2f507c0b680c46888c
diff --git a/mypy/renaming.py b/mypy/renaming.py
@@ -192,9 +192,8 @@ def visit_name_expr(self, expr: NameExpr) -> None:
 
     def handle_arg(self, name: str) -> None:
         """Store function argument."""
-        if name not in self.refs[-1]:
-            self.refs[-1][name] = [[]]
-            self.num_reads[-1][name] = 0
+        self.refs[-1][name] = [[]]
+        self.num_reads[-1][name] = 0
 
     def handle_def(self, expr: NameExpr) -> None:
         """Store new name definition."""