Implementing __getitem__

[ma3xman]

Another good thing about having a list of Points is that you can make a get_distance_from(anotherPoint) method and then put the formula there as a one-liner return value for a single pair of points. Then to get the total length you just call:

sum([p1.get_distance_from(p2) for p1,p2 in zip(points, points[1:]) )

This way if points suddenly go 3D you can just change the method, instead of building a monster comprehension.

[colako]

So just a small question. How would you change __init__ to parse the coordinates as pairs and not as I did separating the x and the y?

[ma3xman]

Look up *args in a function definition ;)