20.8. Instances as Return Values¶
Functions and methods can return objects. This is actually nothing new since everything in Python is an object and we have been returning values for quite some time. (You can also have lists or tuples of object instances, etc.) The difference here is that we want to have the method create an object using the constructor and then return it as the value of the method.
Suppose you have a point object
and wish to find the midpoint halfway between it and some other target point. We would like to write a method, let’s call
halfway, which takes another
Point as a parameter and returns the
Point that is halfway between the point and
the target point it accepts as input.
The resulting Point,
mid, has an x value of 4 and a y value of 8. We can also use any other methods on
mid since it is a