[Numpy-discussion] test_multiarray.TestIO.test_ascii segmentation fault with Python2.7

Pauli Virtanen pav+sp@iki...
Tue Dec 15 10:07:47 CST 2009


Hi,

Tue, 15 Dec 2009 09:30:08 -0600, Bruce Southey wrote:
> After installing Python2.7, a patched nose
> (http://bitbucket.org/kumar303/nose-2_7_fixes/ because
> unittest._TextTestResult has been removed) and numpy '1.5.0.dev8011',
> numpy.test crashes with a segmentation fault with the test for:
> test_multiarray.TestIO.test_ascii
> 
> If I understand the test correctly:
> $ python
> Python 2.7a1 (r27a1:76674, Dec 14 2009, 13:46:01) [GCC 4.4.1 20090725
> (Red Hat 4.4.1-2)] on linux2 Type "help", "copyright", "credits" or
> "license" for more information.
>  >>> import numpy as np
>  >>> from numpy.compat import asbytes, getexception
>  >>> np.fromstring(asbytes('1 , 2 , 3 , 4'),sep=',')
> Segmentation fault

Please run it under gdb to obtain a backtrace.

$ gdb --args python
...
(gdb) run
...
(gdb) bt
...

> This code works under Python2.6 and numpy '1.5.0.dev8011'.

Please also test the 1.4.x branch

	http://svn.scipy.org/svn/numpy/branches/1.4.x

Does it fail too on Python 2.7? There are very few code changes since 
1.4.x on the path that the test exercises.

-- 
Pauli Virtanen



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