[ImageXav]

Even better, python has named tuples [0]. So if you have a tuple that you are sure will always have the same inputs you can declare it:

``` Point = namedtuple('Point', 'x y') pt1 = Point(1.0, 5.0) ```

And then call the X or Y coordinates either by index: pt1[0], pt1[1], or coordinate name: pt1.x, pt1.y.

This can be a really handy way to help people understand your code as what you are calling becomes a lot more explicit.

[0] https://stackoverflow.com/questions/2970608/what-are-named-t...