[PYTHON MATRIX-SIG] Bug

[Konrad Hinsen]

> I get a core dump on the following:
> 
> >>> from Numeric import *
> >>> a = array(3)
> >>> a[:,NewAxis]
> Segmentation fault (core dumped)
> 
> Does that happen to anyone else?

No:

Python 1.4b3 (October 13 1995) [C]
Copyright 1991-1996 Stichting Mathematisch Centrum, Amsterdam
>>> from Numeric import *
from Numeric import *
>>> a = array(3)
a = array(3)
>>> a[:,NewAxis]
a[:,NewAxis]
EmptyArray
>>>

(Note that the error message is not quite correct - this is
not an empty array, but a rank-0 array.)

Nevertheless, array() should probably return a scalar in this
case. Otherwise there is a backdoor to create rank-0 arrays
that can create lots of confusion.

Konrad.
-- 
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Konrad Hinsen                          | E-Mail: hinsen@ibs.ibs.fr
Laboratoire de Dynamique Moleculaire   | Tel.: +33-76.88.99.28
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