[SciPy-user] where is signal?

Robert Kern robert.kern at gmail.com
Tue Sep 19 17:05:14 CDT 2006


Ryan Krauss wrote:
> I can see it in site-packages/scipy, but import scipy doesn't include
> scipy.signal
>>>> scipy.signal
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
> AttributeError: 'module' object has no attribute 'signal'

That's right. It's not supposed to.

> If I try to import scipy.signal I get:
> 
>>>> import scipy.signal
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
>   File "/usr/lib/python2.4/site-packages/scipy/signal/__init__.py",
> line 9, in ?    from bsplines import *
>   File "/usr/lib/python2.4/site-packages/scipy/signal/bsplines.py",
> line 3, in ?    import scipy.special
>   File "/usr/lib/python2.4/site-packages/scipy/special/__init__.py",
> line 8, in ?
>     from basic import *
>   File "/usr/lib/python2.4/site-packages/scipy/special/basic.py", line 8, in ?
>     from _cephes import *
> ImportError: /usr/lib/python2.4/site-packages/scipy/special/_cephes.so:
> undefined symbol: cephes_fabs

Okay, it looks like you have a build problem.

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
  that is made terrible by our own mad attempt to interpret it as though it had
  an underlying truth."
   -- Umberto Eco


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