[Tutor] Code to open a website

[eryksun]

On Sat, Feb 9, 2013 at 8:33 PM, Alan Gauld <alan.gauld at btinternet.com> wrote:
>
> Where does exit() come from? Usually its from sys but you
> don't import from sys anywhere...

site.py adds the exit/quit Quitter instances to builtins (2.x
__builtin__). When called they raise SystemExit, like sys.exit does.
Since you can bypass importing site.py with the -S flag, it's better
to use sys.exit.