Calculating Euclidean distance using Magic Methods in Python 3

Question

I have a code that calculates Euclidean distance for me:

class Point:
    \"\"\"A point in two-dimensional space.\"\"\"

    def __init__(self, x, y):
        se         


        

Answer 1

Your second class works for me. I do not see any issues with it:

In [9]: class Point_1(object):
   ...:     
   ...:     def __init__(self, x, y):
   ...:         self._x = x
   ...:         self._y = y
   ...:   
   ...:     
   ...:     def setX(self, x,y):
   ...:         self._x = x
   ...:         self._y = y
   ...:  
   ...:     def getX(self):
   ...:         return self._x,self._y
   ...:     
   ...:     
   ...:     def __sub__ (self, other ):
   ...:         return Point_1(self._x - other._x, self._y - other._y)
   ...:     
   ...:     def __pow__(self,p):
   ...:         return Point_1(self._x ** p, self._y **p)

And then:

In [14]: p1 = Point_1(10,4)
    ...: print(p1.getX())
    ...: 
    ...: p2 = Point_1(3,1)
    ...: print(p2.getX())
    ...: 
    ...: p3 = p1 - p2
    ...: 
    ...: 
(10, 4)
(3, 1)

In [15]: p3.getX()
Out[15]: (7, 3)

Call it vector or point or whatever, it seems to be doing what you want it to do.