How to call a function within class?

Question

I have this code which calculates the distance between two coordinates. The two functions are both within the same class.

However how do I call the function di

Answer 1

That doesn't work because distToPoint is inside your class, so you need to prefix it with the classname if you want to refer to it, like this: classname.distToPoint(self, p). You shouldn't do it like that, though. A better way to do it is to refer to the method directly through the class instance (which is the first argument of a class method), like so: self.distToPoint(p).