trinary operator - if then else
Nick Craig-Wood
nick at craig-wood.com
Wed Apr 25 11:30:04 EDT 2007
Diez B. Roggisch <deets at nospam.web.de> wrote:
> Michael >>
> >> Does Python 2.4 support it?
> >
> > Not precisely, but you can *usually* get away with:
> >
> > a and b or c
>
> This is really bad advice, as long as you don't explain why it "usually"
> works (and often enough not). This for example won't work:
>
> >>> False or '' and 0
> ''
You can use this if you want it to be bullet proof
(a and [b] or [c])[0]
Not exactly elegant though!
--
Nick Craig-Wood <nick at craig-wood.com> -- http://www.craig-wood.com/nick
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