[Numpy-discussion] Can't import numpy - problem with lapack?

Charles R Harris charlesr.harris@gmail....
Sat Aug 15 09:42:31 CDT 2009

On Sat, Aug 15, 2009 at 8:14 AM, Bent <bbagger@gmail.com> wrote:

> Hi list
> I want to use Numpy with Gnuradio but I cannot make it work. The
> problem, which turns out to have nothing with Gnuradio to do, is an
> undefined symbol as witnessed by these messages:
> bent@yosie:~> python
> Python 2.6 (r26:66714, Feb  3 2009, 20:52:03)
> [GCC 4.3.2 [gcc-4_3-branch revision 141291]] on linux2
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import numpy
> Traceback (most recent call last):
>  File "<stdin>", line 1, in <module>
>  File "/usr/lib/python2.6/site-packages/numpy/__init__.py", line 138,
> in <module>
>    import linalg
>  File "/usr/lib/python2.6/site-packages/numpy/linalg/__init__.py",
> line 47, in <module>
>    from linalg import *
>  File "/usr/lib/python2.6/site-packages/numpy/linalg/linalg.py", line
> 29, in <module>
>    from numpy.linalg import lapack_lite
> ImportError: /usr/lib/python2.6/site-packages/numpy/linalg/lapack_lite.so:
> undefined symbol: zgesdd_
> >>> quit()
> bent@yosie:~>
> My distribution is openSUSE 11.1 and what really bugs me is that the
> exact same setup works as expected on another PC also running openSUSE
> 11.1. As far as I can tell, the installed packages are exactly the
> same, version numbers, build dates, etc, all are the same... The only
> difference between the two PCs is that the one (the one that fails) is
> a new install and the other is an upgrade from an older release.
> I have googled high and low but not found anything that could bring me
> further. I hope that this (collectively) all-knowledgeable list can
> give me some pointers.

That's probably due to the ATLAS library you have installed, SuSe has a
history of problems in that area. Have you checked the ATLAS versions also?
Is the hardware the same?

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