To show the Static_Class_method.

Static_Class_method.py

class First(object):
    def member1(self, n):
        return n

    @classmethod
    def member2(cls, n):
        # Call the static member.
        n += cls.member3(n)
        # Call the normal member.
        n += cls.member1(cls, n)
        return n

    @staticmethod
    def member3(n):
        return n

print('Member1(normal member):', First().member1(1)) # 1
print('Member2(class member):', First.member2(1)) # 4
print('Member3(static member):', First.member3(1)) # 1