Multiple Inheritance and super()

[INADA Naoki]

>> I'm not 100% sure what is 'correct' here.
>
> Deprecate multiple inheritance? (Only half joking.)

Pure mix-in (doesn't have __init__() and any other overriding methods)
is not dangerous.
Cross class overriding is dangerous. So I think it should be avoided.

In case of __init__(), the class that aimed to mixed-in shouldn't have
__init__()
and alternative init() method. For example:

class Base(object):
  def __init__(self, a,b,c):
    pass

class Mixed(object):
  def init(self, foo, bar, baz):
    pass

class Mixing(Base, Mixed):
  def __init__(self, a, b, c, foo, bar, baz):
    supre(Mixing, self).__init__(a, b, c)
    Mixed.init(self, foo, bar, baz)


-- 
Naoki INADA  <songofacandy at gmail.com>