class A(object):
	def __init__(self, a):
		self.a = a
	
	def foo_a(self):
		print(self.a)

class B(object):
	def __init__(self, b):
		self.b = b
	
	def foo_b(self):
		print(self.b)

class C(A,B):
	def __init__(self, a, b):
		A.__init__(self, a)
		B.__init__(self, b)

c = C(a='AAA', b='BBB')

#print(dir(c))
c.foo_a()
c.foo_b()