Steven Bethard a écrit :
> A.M wrote:
> > Do we have the conditional expressions in Python 2.4?
>
> bruno at modulix wrote:
>
(snip)
>
>> In the meanwhile, there are (sometime trickyà ways to get the same
>> result:
>>
>> a = 1 == 1 and "Yes" or "No"
>> a = ("No", "Yes")[1 == 1]
>
> And just to give some examples where the conditional expression will
> show a difference::
>
> >>> True and 0 or []
> []
Yes, this is one of the tricky part !-)
<op>
Always make sure the second term doesn't eval to False.
</op>
>
> >>> def f():
> ... print "don't evaluate me"
> ... return 'f'
> ...
> >>> def g():
> ... return 'g'
> ...
> >>> (f(), g())[True]
Why on earth are you calling the callables *before* testing ?
Should be:
(f, g)[True]()
of course.
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