Update lis.py

Author: ramalho

18-context-mngr/lispy/py3.10/lis.py

@@ -25,7 +25,8 @@ def __init__(self, parms: list[str], body: Expression, env: Environment):
         self.parms, self.body, self.env = parms, body, env
 
     def __call__(self, *args: Expression) -> Any:
-        env: Environment = ChainMap(dict(zip(self.parms, args)), self.env)
+        local_env = dict(zip(self.parms, args))
+        env: Environment = ChainMap(local_env, self.env)
         return evaluate(self.body, env)