super() : It allows you to use it in the superclass without repeating code. class Rectangle: def __init__(self, length, width, **kwargs): self.length = length self.width = width super().__init__(**kwargs) def area(self): return self.length * self.width def perimeter(self): return 2 * self.length + 2 * self.width # Here we declare that the Square class inherits from # the Rectangle class class Sq..