[Numpy-discussion] Bug

Sasha ndarray at mac.com
Fri Apr 28 10:49:02 CDT 2006


On 4/28/06, Louis Cordier <lcordier at point45.com> wrote:

> Souldn't the second example be a ticket ?
> Or is it part of #86 ?

I think all your examples are different signs of the same problem. 
You can help by converting your examples into unit tests to be added
to say test_multiarray.py and attaching a patch to the ticket.

A brief comment for the developers: the problem that Louis reported is
caused by the fact that x.fill([]) creates an empty array internally
instead of a scalar object array containing an empty list.  Note that
numpy does not even have a good notation for the required object:

>>> from numpy import *
>>> x = zeros(1,'O')
>>> x.shape=()
>>> x[()] = []
>>> x
array([], dtype=object)
>>> x.shape
()

but

>>> array([], dtype=object).shape
(0,)




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