[Tutor] problem creating a subclass
nick at javacat.f2s.com
Sun Feb 29 17:52:18 EST 2004
Maybe I'm missing something obvious here but I don't see how Chris'
UList class is going to work at all. The class has no UList method, so
how is 'a = UList.UList(alist)' going to work ?
On Sun, 29 Feb 2004 17:37:34 -0500 Lloyd Kvam <pythontutor at venix.com>
> You didn't pass the list that came in, you passed None.
> Christopher Spears wrote:
> > I am creating a new class based on UserList called
> > UList. Here is the code:
> > import UserList
> > class UList(UserList.UserList):
> > def __init__(self, initlist=None):
> ^^^^^ defines a default value
> > UserList.UserList.__init__(self,
> > initlist=None)
> ^^^^^ passes None
> You want (the slightly odd looking) initlist=initlist
> which will pass your variable named initlist to the argument that
> has the same name, initlist.
> > When I tested the class, the following happened:
> >>>>import UList
> >>>>list = [1,2,3]
> >>>>a = UList.UList(list)
> > 
> > What gives?
> > -Chris
> > =====
> > "I'm the last person to pretend that I'm a radio. I'd rather go out
> > and be a color television set."-David Bowie
> > "Who dares wins"
> > -British military motto
> > "The freak is the norm." - "The Infernal Desire Machines of Dr.
> > Hoffman" by Angela Carter
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> Lloyd Kvam
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