[Numpy-discussion] Segfault when indexing on second or higher dimension with list or tuple

Albert Strasheim fullung at gmail.com
Thu Apr 13 07:24:02 CDT 2006


Hello all

I've attached a test case that reproduces the bug to the ticket:

http://projects.scipy.org/scipy/numpy/attachment/ticket/59/test_list_tuple_indexing.diff

I've also created a test case for the recent vectorize bug:

http://projects.scipy.org/scipy/numpy/attachment/ticket/52/test_vectorize.diff

Regards,

Albert

On Thu, 13 Apr 2006, Albert Strasheim wrote:

> Hello all,
> 
> The following segfault bug was discovered in NumPy 0.9.7.2348 by 
> someone at our Python workshop:
> 
> import numpy as N
> F = N.zeros((1,1))
> F[:,[0]] = 0
> 
> The following also segfaults:
> 
> F[:,(0,)] = 0
> 
> Something seems to go wrong when one uses a tuple or a list to index 
> into a NumPy array on the second or higher dimension, since the 
> following code works:
> 
> F = N.zeros((1,))
> F[[0]] = 0
> 
> The Trac ticket is here:
> 
> http://projects.scipy.org/scipy/numpy/ticket/59
> 
> If someone gets around to fixing this, please include some test cases.
> 
> Thanks!
> 
> Regards,
> 
> Albert
> 
> 
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