"Boris Borcic" <bborcic@gmail.com> wrote in message news:447f3338$1_7@news.bluewin.ch...

after a while trying to find the legal manner to file numpy bug reports, since it's a simple one, I thought maybe a first step is to describe the bug here. Then maybe someone will direct me to the right channel.

So, numpy appears not to correctly compute bitwise_and.reduce and bitwise_or.reduce : instead of reducing over the complete axis, these methods only take the extremities into account. Illustration :

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from numpy import * bitwise_or.reduce(array([8,256,32,8])) 8 import numpy numpy.__version__ '0.9.8'

Platform : Win XP SP2, Python 2.4.2

Most bug reports start on the numpy list, I believe. (See above.) Cheers, Alan Isaac