how to explain such codes, python's bug or mine?

[MaHahaXixi]

yes. i understand now.
but i use another trick.
list is in vary size, so i do not wanna copy it.
"Jim" <jbo at cannedham.ee.ed.ac.uk> wrote in message
news:d3irjm$msg$1 at scotsman.ed.ac.uk...
> MaHahaXixi wrote:
> >>>>j = range(20)
> >>>>print j
> >
> > [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19]
> >
> >>>>for k in j:
> >
> >  if k <= 10:
> >   j.remove(k)
> >
> >
> >
> >>>>print j
> >
> > [1, 3, 5, 7, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19]
> >
> >
> >
> > Python 2.3.4 (#53, May 25 2004, 21:17:02) [MSC v.1200 32 bit (Intel)] on
> > win32
> > Type "copyright", "credits" or "license()" for more information.
> >
> > i think python do convert there codes to such style:
> > for (i = 0; i < len(j); i++)
> >    k = j[i]
> >    ......
>
> > what do u think?
> >
> >
>
> I'm not quite sure of your question but with the second style you're not
> attempting to change the original list but make a copy. That's perfectly
> easy to do in Python as it is. The exampmle is a cautionary one about
> changing the list on which you are iterating.
>
> Jim