get list of child class in python

Asked Jul 31 '13 at 10:18

Active Jul 31 '13 at 10:18

Viewed 47 times

I have some class like this

class Base(object):
 __child_class__ = []

class ChildA(Base): pass

class ChildB(Base): pass

What I need to do for the interpreter to automatically fill the argument __child_class__ by all the child class so I can have this result

Base.__child_class__ = [ChildA, ChildB]

Do I need the metaclass for this?

asked Jul 31 '13 at 10:18

nam

1

You probably do need a metaclass. Other solution would be to scan all files/classes and search for `Base`. – freakish Jul 31 '13 at 10:20
@freakish: You don't. See the dupe. My answer there does also give a metaclass and a class decorator solution. – Martijn Pieters Jul 31 '13 at 10:21
@MartijnPieters Oh, that's nice. Didn't know that. – freakish Jul 31 '13 at 10:22

0 Answers0