Classes,attributes&methods

class circle():

    pi = 3.14

    def __init__(self,radius):
        self.radius = radius
        self.diameter = 2 * radius

    def area(self):
        area_circle = self.pi * self.radius ** 2
        print(area_circle)

    def circumference(self):
        circumference_circle = 2* self.pi * self.radius
        print(circumference_circle)

c1 = circle(5)

print(c1.radius)

5

print(c1.diameter)

10

c1.area()

78.5

c1.circumference()

31.400000000000002

c1.pi

3.14