[Numpy-discussion] str == int puzzlement

Sturla Molden sturla@molden...
Wed Jul 28 21:04:28 CDT 2010


> In [15]: x = np.array(['a', 'b'])
>
> In [16]: x == 'a'  # this was what I expected
> Out[16]: array([ True, False], dtype=bool)
>
> In [17]: x == 1 # this was strange to me
> Out[17]: False
>
> Is it easy to explain why this is?


I'll call this a bug in NumPy's broadcasting. "x == 1" should have returned:

   array([ False, False], dtype=bool)



Sturla




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