Creating a class that represents 2D-points

Question

Implement a class that represents 2D-points (i.e., a point that has an x- and a y- position) Implement the following methods: distanceFromOrigin(): calculates and returns the distance to Point2D(0,0).

#this code
#p = Point2D(3,4)
#print(p.distanceFromOrigin())
#shall produce the following output
#5.0

import math

class Point2D:  
  def disctanceFromOrigin():
    dist = math.sqrt((x2 - x1)**2 + (y2 - y1)**2)
    return dist

p = Point2D(3,4)
print(p.distanceFromOrigin())

Can somebody tell me why this doesn't work? It gives me back a TypeError: object() takes no parameters

Answer 1

import math

class Point2D:  
  def __init__(self, x, y):
      self.x = x
      self.y = y

  def disctanceFromOrigin(self):
    origin = Point2D(0, 0)
    dist = self.distanceFromPoint(self, origin)
    return dist
  
  def distanceFromPoint(self, point):
    return  math.sqrt((self.x - point.x)**2 + (self.y - point.y)**2


p = Point2D(3,4)
print(p.distanceFromOrigin())