Return all key, value as a dictionary under a subclass

convertClassObjectToDict.py

class A(object):
	class Argument:
		a = "testme"
		b = list("this is a list")


class _OldClass:
    pass


class _NewClass(object):
    pass


_all_vars = set(dir(_OldClass) + dir(_NewClass))


def props(x):
    return {
        key: vars(x).get(key, getattr(x, key)) for key in dir(x) if key not in _all_vars
    }

# Note:
#     vars(x).get(key, gettattr(x, key)) is used instead of the
#     simpler gettatrr(x, key) for python2.7 compat.
#     Indeed python2 and python3 lead to different results for

#     class Foo(object):
#         def bar(self):
#             pass
#     getattr(Foo, 'bar')

    # python 2.7 : > unbound method bar
    # python 3.x : > function Foo.bar
	
#   print(props(getattr(a, "Argument", None)))
#   >> {'a': 'testme', 'b': ['t', 'h', 'i', 's', ' ', 'i', 's', ' ', 'a', ' ', 'l', 'i', 's', 't']}