what is the difference between commenting and uncommenting the__init__ method in this class?

[iMath]

what is the difference between commenting and uncommenting the __init__ method in this class?


class CounterList(list):
counter = 0

## def __init__(self, *args):
## super(CounterList, self).__init__(*args)

def __getitem__(self, index):

self.__class__.counter += 1
return super(CounterList, self).__getitem__(index)

 

[Dave Angel]

what is the difference between commenting and uncommenting the __init__ method in this class?


class CounterList(list):
counter = 0

## def __init__(self, *args):
## super(CounterList, self).__init__(*args)

def __getitem__(self, index):

self.__class__.counter += 1
return super(CounterList, self).__getitem__(index)

If you don't call the super-class' __init__() method, then the list
won't take anyparameters. So the list will be empty,

 

[Mitya Sirenef]

what is the difference between commenting and uncommenting the __init__ method in this class?


class CounterList(list):
counter = 0

## def __init__(self, *args):
## super(CounterList, self).__init__(*args)

def __getitem__(self, index):

self.__class__.counter += 1
return super(CounterList, self).__getitem__(index)

No difference as this code doesn't do anything else in the __init__() it
overrides. Normally you would add some additional processing there but
if you don't need to, there is no reason to override __init__(),
therefore it's clearer and better to delete those 2 lines.

-m