Use self.vars in class.method(parameters, self.vars)

caccolangrifata caccolangrifata at gmail.com
Fri Jul 22 14:02:31 CEST 2011


On Jul 22, 1:33 pm, Thomas Jollans <t... at jollybox.de> wrote:
> On 22/07/11 13:12, caccolangrifata wrote:
>
> > I'm very very new with python, and I have some experience with java
> > programming, so probably you guys will notice.
> > Anyway this is my question:
> > I'd like to use class scope vars in method parameter, something like
> > that
>
> > class foo(object):
>
> >    __init__(self, len = 9):
> >            self.__myvar = len
>
> >    def foo2(self, len = self_myvar):
> >            while i < len:
> >                    dosomething
>
> I think what you want to do is this:
>
> class foo (object):
>     def __init__(self, len=9):
>         self._len = len
>     def foo2(self, len=None):
>         if len is None:
>             len = self._len
>         # ...
>
> Default arguments are for when you want to use exactly the same object
> each time the function/method is called. If you the object you want to
> use depends on something, you can use this arg=None idiom.

Yep! Leaving aside the typos, that's exactly I want to do.
Thanks!



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