Pauli Virtanen wrote: > Tue, 10 Mar 2009 13:08:17 -0600, Charles R Harris wrote: >> It isn't 0 so it should be True. Any disagreement? - 1 > Nonzero Python object, hence True.
Empty sequences are False also. There was a lot of discussion about all this when Guido added Bool types to python. Personally, I don't think zero should be false, I think only False (and maybe None) should be false -- is it so hard to write: "if x != 0:", rather than "if x:"? but there is a LOT of legacy to 0 being False! Anyway, Laura Creighton wrote a great post about it, with this basic thesis: > > Python does not distinguish between True and > > False -- Python makes the distinction between something and nothing. In that context, NaN is nothing, thus False. my $0.02 -Chris _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
