Getting the name of a variable which was used as a function parameter.

Ravi Kotecha kotecha.ravi at googlemail.com
Mon Jul 21 23:05:02 CEST 2008


Of course I wouldn't, it is a total hack, mostly useless but fun.  I
tried to do it after someone in #python efnet said it was impossible!

On Jul 21, 9:56 pm, Marc 'BlackJack' Rintsch <bj_... at gmx.net> wrote:
> On Mon, 21 Jul 2008 09:01:10 -0700, Ravi Kotecha wrote:
> > I thought this was pretty cool and since I spent 30 mins or so
> > goggling before giving up and figuring out myself I thought I'd share
> > it with you.
>
> >>>> def a(a):
> > ...     for k,v in sys._getframe(1).f_locals.items():
> > ...         if id(v) == id(a):
> > ...             print k
> > ...
>
> >>>> hello = 123
>
> >>>> a(hello)
> > hello
>
> > ## pretty cool.
>
> Or ugly hack.  Beauty lies in the eye of the beer holder…
>
> > It's totally useless but I wanted to do it for logging purposes.
>
> Don't use such things in production code, please.
>
> Ciao,
>         Marc 'BlackJack' Rintsch




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