anything like C++ references?
Ian Bicking
ianb at colorstudy.com
Sun Jul 13 22:47:30 EDT 2003
On Sun, 2003-07-13 at 20:32, Aahz wrote:
> In article <mailman.1058126720.6756.python-list at python.org>,
> Ian Bicking <ianb at colorstudy.com> wrote:
> >
> >(Admittedly, some confusion may occur because these very different
> >operations use the same syntax:
> >
> > x = 10
> > x[0] = 10
> > obj.x = 10
> >
> >The second and third are entirely different from the first.)
>
> No, they aren't. They are precisely the same; they just have different
> assignment targets.
Sure they are different. The first is a primitive operation binding the
variable x. The second gets x, and calls x.__setitem__(0, 10), and the
third is equivalent to setattr(obj, 'x', 10).
The first is primitive syntax. I suppose you could say that it could be
reduced to operations on locals() and globals(), but I feel like that's
a detail that is best not brought up ;) The local and global scope are
not as flexible as other objects The other two are really just syntactic
sugar.
Ian
More information about the Python-list
mailing list