Python / Class / Attributes - https://www.minte9.com/python/class-attributes-1286

points_distance.py

# Write a function named distance_between_points()
# that takes 2 Point as argument
# and return the distance between them

import math

class Point: """ a 2D point """

a = Point()
a.x = 0.0
a.y = 0.0

b = Point()
b.x = 3.0
b.y = 4.0


# SOLUTION

def distance_between_points(p1, p2):
    dx = (p2.x - p1.x)**2
    dy = (p2.y - p1.y)**2
    return math.sqrt(dx + dy)

print(distance_between_points(a, b)) # 5.0