import math
        
class Point:
    '''Represents an (x, y) coordinate pair.'''
    
    def __init__(self, new_x, new_y):
        '''Set up a new Point object with an x and y value.'''
        self.x = new_x
        self.y = new_y
    
    
    def distance_to(self, other_point):
        '''Return the distance from this point to other_point.'''
        x1 = self.x
        y1 = self.y
        x2 = other_point.x
        y2 = other_point.y
        return math.sqrt((x1 - x2) ** 2 + (y1 - y2) ** 2)
    
    
    def distance_origin(self):
        '''Return the distance from this point (aka self) to the origin.'''
        origin = Point(0, 0)
        return self.distance_to(origin)

        
    def __str__(self):
        '''Return a string representation of the point object.'''
        return '({0}, {1})'.format(self.x, self.y)


def main():
    '''Test the Point class.'''
    p1 = Point(3, 7)
    p2 = Point(-10, 1)
    print("p1 is " + str(p1))
    print("p2 is " + str(p2))
    dist = p1.distance_to(p2)
    print("distance is " + str(dist))
    
main()