UserList.__getslice__(): copy.copy(self.data) vs. self.__class__(self.data).

[Alex]

> I was thinking that we'd be left with why test_userlist.py was 
> failing.... but NOT!  Even that seems to have remedied itself:
> 
>   D:\Python\Lib\test>python test_userlist.py
> 
>   D:\Python\Lib\test>

That sort of thing happens to me all the time.  Sneaky machines are
always conspiring to make me look silly. :)

Alex.