EP 25 Initialize Parent Classes with `super` ref: http://qiita.com/giwa/items/1e8bc71050a2490ce95c

file0.txt

from pprint import pprint

class MyBaseClass:
    def __init__(self, value):
        self.value = value

class TimesTwo:
    def __init__(self):
        self.value *= 2

class PlusFive:
    def __init__(self):
        self.value += 5

class OneWay(MyBaseClass, TimesTwo, PlusFive):
    def __init__(self, value):
        MyBaseClass.__init__(self, value)
        TimesTwo.__init__(self)
        PlusFive.__init__(self)

print(OneWay(5).value)

file1.txt

class OneWay(MyBaseClass, TimesTwo, PlusFive):
    def __init__(self, value):
        MyBaseClass.__init__(self, value)
        TimesTwo.__init__(self)
        PlusFive.__init__(self)

file2.txt

class OneWay(MyBaseClass, TimesTwo, PlusFive):
    def __init__(self, value):
        MyBaseClass.__init__(self, value)
        PlusFive.__init__(self)
        TimesTwo.__init__(self)

file3.txt

# diamond inheritance
class TimesFive(MyBaseClass):
    def __init__(self, value):
        MyBaseClass.__init__(self, value)
        self.value *= 5

class PlusTwo(MyBaseClass):
    def __init__(self, value):
        MyBaseClass.__init__(self, value)
        self.value += 2

class ThisWay(TimesFive, PlusFive):
    def __init__(self, value):
        TimesFive.__init__(self, value)
        PlusTwo.__init__(self, value)

foo = ThisWay(5)
print(foo.value)

file4.txt

# Python2
class TimesFiveCorrect(MyBaseClass):
    def __init__(self, value):
        super(TimesFiveCorrect, self).__init__(value)
        self.value *= 5

class PlusTwoCorrect(MyBaseClass):
    def __init__(self, value):
        super(PlusTwoCorrect, self).__init__(value)
        self.value += 2

# Python 2
class GoodWay(TimesFiveCorrect, PlusTwoCorrect):
    def __init__(self, value):
        super(GoodWay, self).__init__(value)

foo = GoodWay(5)
print(foo.value)

print(GoodWay.mro())

>>>
[<class '__main__.GoodWay'>,
<class '__main__.TimesFiveCorrect'>,
<class '__main__.PlusTwoCorrect'>,
<class '__main__.MyBaseClass'>,
<class 'object'>]

file5.txt

# Python 3
class Explicit(MyBaseClass):
    def __init__(self, value):
        super(__class__, self).__init__(value * 2)

class Implicit(MyBaseClass):
    def __init__(self, value):
        super().__init__(value * 2)