[Numpy-discussion] boolean arrays
Alan G Isaac
aisaac@american....
Thu Nov 26 07:55:04 CST 2009
On 11/26/2009 8:20 AM, Nils Wagner wrote:
> a = array(([True,True],[True,True]))
> b = array(([False,False],[False,False]))
> a+b
NumPy's boolean operations are very well behaved.
>>> a = np.array(([True,True],[True,True]))
>>> a+a
array([[ True, True],
[ True, True]], dtype=bool)
Compare Python:
>>> True + True
2
Ugh!
Not fixing this in Python 3 was a big mistake, imo.
Alan Isaac
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