scipy error undefined symbol: lsame_

Joaquin Abian gatoygata2 at gmail.com
Mon Apr 19 19:38:32 CEST 2010


On Apr 19, 7:15 pm, gerardob <gberbeg... at gmail.com> wrote:
> I installed scipy (and all the required libraries) and the following error
> appears when i tried run a simple example which uses the optimize package of
> scipy. I tried also numpy alone and it works ( at least for printing
> numpy.array([10,20,10]))
>
> error:
>
> Traceback (most recent call last):
>   File "main_test.py", line 2, in <module>
>     from scipy import optimize
>   File
> "/home/gberbeglia/python/Python-2.6.5/lib/python2.6/site-packages/scipy/optimize/__init__.py",
> line 11, in <module>
>     from lbfgsb import fmin_l_bfgs_b
>   File
> "/home/gberbeglia/python/Python-2.6.5/lib/python2.6/site-packages/scipy/optimize/lbfgsb.py",
> line 30, in <module>
>     import _lbfgsb
> ImportError:
> /home/gberbeglia/python/Python-2.6.5/lib/python2.6/site-packages/scipy/optimize/_lbfgsb.so:
> undefined symbol: lsame_
> gberbeglia at actarus:~/python/mycodes>
>
> Any ideas on how to solve this problem? Thanks.
>
> PS: the example is below:
>
> import numpy
> from scipy import optimize
>
> a = numpy.array([10,20,10])
> print a
>
> def f_(x):
>         return x*x
>
> x,f,d = optimize.fmin_l_bfgs_b(f_,[0.1],fprime=None, approx_grad = True,
> bounds = [(-10000,10000)], iprint=30, maxfun=150000)
>
> --
> View this message in context:http://old.nabble.com/scipy-error-undefined-symbol%3A-lsame_-tp282877...
> Sent from the Python - python-list mailing list archive at Nabble.com.

Um... The snip works perfect on my computer. Just copy and paste.
What libraries are you talking about you had to download? Are you on
windows or linux? On windows you dont need to download anything but
numpy and scipy packages.
joaquin



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