exit() or sys.exit()
Brendan
brendandetracey at yahoo.com
Wed Jun 17 13:06:20 EDT 2009
On Jun 17, 1:33 pm, Tim Chase <python.l... at tim.thechases.com> wrote:
> Brendan wrote:
> > What is the difference on exit() and sys.exit() when called in the
> > main body of a script? From the command line they seem to have the
> > same effect.
>
> In Python <=2.4 you had to use sys.exit() because
> __builtins__.exit() griped:
>
> tchase at asgix:~$ python2.4
> Python 2.4.4 (#2, Apr 15 2008, 23:43:20)
> [GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)] on linux2
> Type "help", "copyright", "credits" or "license" for more
> information.
> >>> type(exit)
> <type 'str'>
> >>> exit()
> Traceback (most recent call last):
> File "<stdin>", line 1, in ?
> TypeError: 'str' object is not callable
>
> In 2.5, it's an instance of site.Quitter which is callable,
> allowing it to behave like sys.exit() (from my observations,
> __builtins__.exit() and sys.exit() behave the same).
>
> I tend to use sys.exit() because I've still got code running on
> machines mired at 2.4
>
> -tkc
Okay. Thanks.
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