Prebound Method Pattern

Prebound method pattern is a native to python language. In this pattern, we assign bounded methods of class instances to names in module namespace. For example, random library has methods randint etc, these methods are bounded method of random.Random class instance.

class Colorcycle:
    def __init__(self):
        self.step = 0
        self.colors = ["red", "yellow", "green"]
    def next_color(self):
        color = self.colors[self.step % len(self.colors)]
        self.step += 1
        return color
 
 
_instance = Colorcycle()
next_color = _instance.next_color

Now, next_color can be used.

References

1. https://python-patterns.guide/python/prebound-methods/