[Numpy-discussion] Is this a bug?

Charles R Harris charlesr.harris at gmail.com
Mon May 26 16:03:27 EDT 2008


On Mon, May 26, 2008 at 1:52 PM, Charles R Harris <charlesr.harris at gmail.com>
wrote:

>
>
> On Mon, May 26, 2008 at 1:44 PM, Robert Kern <robert.kern at gmail.com>
> wrote:
>
>> On Mon, May 26, 2008 at 11:29 AM, Charles R Harris
>> <charlesr.harris at gmail.com> wrote:
>> > I vaguely recall this generated an array from all the characters.
>> >
>> > In [1]: array('123', dtype='c')
>> > Out[1]:
>> > array('1',
>> >       dtype='|S1')
>>
>> When was the last time it did otherwise? This behavior is a
>> consequence of treating strings as scalars rather than containers of
>> characters. I believe we settled on this behavior before 1.0.
>>
>
> The 'c' type is special, it is a left over compatibility type for numeric.
> It would, I think, have been several months ago that it behaved differently.
> Maybe I should check out a version from before Travis's latest fixes for
> matrix types went in, because there used to be an exception in the code for
> the 'c' type.
>

It works the same in r5101, so it looks like it hasn't changed. What I
vaguely remembered was the whole string being treated as a sequence of
characters, but evidently that is not the case. Probably I remembered the
opposite of the case from looking at the code back when.

Chuck
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