subclassing Python types

[zzbbaadd at aol.com]

On Aug 30, 12:18 pm, Wildemar Wildenburger
<lasses_w... at klapptsowieso.net> wrote:
> zzbba... at aol.com wrote:
> > I have read that you can derive from the base classes such as str,
> > list, dict.
>
> > I guess this would look like:
>
> > def MyString(str):
> > def MyList(list):
> > def MyDict(dict):
>
> Well, replace 'def' with 'class' and you're right.
>
> > How do you access the data that is contained in the super class?
>
> This way:
>  >>> class MyList(list):
> ...    def do_something(self):
> ...       self.append(3)
> ...       print self
> ...
>  >>> l = MyList((1, 2))
>  >>> l
> [1, 2]
>  >>> l.do_something()
> [1, 2, 3]
>
> That is: Whenever you want to refer to the value refer to self (that is,
> refer to the instance of your class).
>
> /W

Ok, thanks.

So it's:
class MyString(str):
   def __init__(self,strInput):
      self = strInput