Understanding super and multiple inheritance in Python.

multipleinheritance.py

class Bar(object):
    def __init__(self, bar='bar', *args, **kwargs):
        self.bar = bar
        super(Bar, self).__init__(*args, **kwargs)

class Foo(object):
    def __init__(self, foo='foo', *args, **kwargs):
        self.foo = foo
        super(Foo, self).__init__(*args, **kwargs)

class Baz(Foo, Bar):
    def __init__(self, baz='baz', *args, **kwargs):
        self.baz = baz
        super(Baz, self).__init__(*args, **kwargs)

baz = Baz()

vars(baz)
Out[154]: {'bar': 'bar', 'baz': 'baz', 'foo': 'foo'}

mad_baz = Baz(baz='BAZ!!!', bar='BAR!!!', foo='FOO!!!')

vars(mad_baz)
Out[156]: {'bar': 'BAR!!!', 'baz': 'BAZ!!!', 'foo': 'FOO!!!'}

pos_baz = Baz('baz_pos', 'foo_pos', 'bar_pos')

vars(pos_baz)
Out[158]: {'bar': 'bar_pos', 'baz': 'baz_pos', 'foo': 'foo_pos'}