30. Low memory cost

0x09-python-everything_is_object/101-locked_class.py

@@ -3,4 +3,17 @@
 
 
 class LockedClass:
-    __slots__ = ['first_name']
+    """
+    Prevents the user from dynamically creating new instance attributes,
+    except if the new instance attribute is called first_name.
+
+    Attributes:
+        first_name (str): first name.
+    """
+
+    __slots__ = ["first_name"]
+
+    def __init__(self):
+        """Creates new instances of Locked Class."""
+
+        self.first_name = "first_name"