TR updates, second round

Author: lpozo

python-mutable-immutable/immutable.py

@@ -1,8 +1,8 @@
 class Immutable:
-    def __init__(self, magnitude):
-        super().__setattr__("magnitude", magnitude)
+    def __init__(self, value):
+        super().__setattr__("value", value)
 
-    def __setattr__(self, name, value):
+    def __setattr__(self, name, attr_value):
         raise AttributeError(f"can't set attribute '{name}'")
 
     def __delattr__(self, name):