abstarct class python

1import abc
2class Shape(metaclass=abc.ABCMeta):
3   @abc.abstractmethod
4   def area(self):
5      pass
6class Rectangle(Shape):
7   def __init__(self, x,y):
8      self.l = x
9      self.b=y
10   def area(self):
11      return self.l*self.b
12r = Rectangle(10,20)
13print ('area: ',r.area())

1from abc import ABC
2
3class MyABC(ABC):
4    pass
5