2D Point class in Python

point.py

# from math import sqrt


class Point:
    def __init__(self, X, y):
        self.X = X
        self.y = y

    def shift(self, X = 0, y = 0):
        """
        Shift coordinates by X, y, or both. Default is zero shift to
        allow one coordinate to be moved without impacting the other.
        """
        self.x += x
        self.y += y

    def __repr__(self):
        return f"{self.__class__.__name__}({self.X}, {self.y})"

p1 = Point(10, 3)
p2 = Point(1, 0)


def distance(a, b):
    return ((a.X - b.X)**2 + (a.y-b.y)**2)**(1/2)

print(p1.X, p1.y, p2.X, p2.y)
print(distance(p1, p2))

p2.shift(2,3)

print(p2)