"Christos TZOTZIOY Georgiou" wrote:
> On Tue, 15 Mar 2005 16:48:17 +0300,
> rumours say that [i] might have written:
>
> >yes, indeed.
> >>>> import Tkconstants
> >>>> 'True' and 'YES' in dir(Tkconstants)
> >True
> >
> >thanks Harlin,
>
> I hope you also know that
>
> .>> 'inexistent keyword' and 'YES' in dir(Tkconstants)
>
> is also True...
yeah, known but forgotten.
hmmm .......
let's try :
>>> import Tkconstants
>>> 'YES' in dir(Tkconstants)
True
>>> 'True' in dir(Tkconstants)
False
>>> 'TRUE' in dir(Tkconstants)
True
>>> ('inexistent keyword') in dir(Tkconstants)
False
so
>>> 'TRUE' and 'YES' in dir(Tkconstants)
True
>>> 'inexistent keyword' and 'YES' in dir(Tkconstants)
True
i'll recite 42 times truth tables before going to bed.
however i didn't expect the following:
>>> 'inexistent keyword' or 'YES' in dir(Tkconstants)
'inexistent keyword'
>>> False or 'YES' in dir(Tkconstants)
True
hmmm...
>>> ('inexistent keyword' or 'YES') in dir(Tkconstants)
False
>>> (False or 'YES') in dir(Tkconstants)
True
i'll recite 42 times precedence rules before going to bed.
but now i'm a bit confused by the -in- operator. as:
>>> set(['TRUE','YES']).issubset(set(dir(Tkconstants)))
True
i expected this to be true, but it's not:
>>> set(['TRUE','YES']) in set(dir(Tkconstants))
False
originaly, i'm thinking to short-cut the following,
>>> reduce(lambda t,f: t and f, [i in dir(Tkconstants) for i in
'YES','inexistent keyword'])
False
>>> reduce(lambda t,f: t and f, [i in dir(Tkconstants) for i in
'TRUE','YES'])
True
but that was too short and i miss something!
i do reset my brain somewhere between cell234 and cell241
thanks for reading!
--
nirinA
--
--
http://mail.python.org/mailman/listinfo/python-list
