init_subclass

Backwards compatibility for Python 3 __init_subclass__

Install

pip install init_subclass

Usage

class Philosopher(InitSubclass):
    subclasses = []

    def __init_subclass__(cls):
        Philosopher.subclasses.append(cls.__name__)


class Socrates(Philosopher):
    pass
class Plato(Philosopher):
    pass


print Philosopher.subclasses
=> ['Socrates', 'Plato']