Extension methods in Python

Question

Does Python have extension methods like C#? Is it possible to call a method like:

MyRandomMethod()

on existing types like int?

Answer 1

It can be done with Forbidden Fruit (https://pypi.python.org/pypi/forbiddenfruit)

Install forbiddenfruit:

pip install forbiddenfruit

Then you can extend built-in types:

>>> from forbiddenfruit import curse

>>> def percent(self, delta):
...     return self * (1 + delta / 100)

>>> curse(float, 'percent', percent)
>>> 1.0.percent(5)
1.05

Forbidden Fruit is fundamentally dependent on the C API, it works only on cpython implementations and won’t work on other python implementations, such as Jython, pypy, etc.