未定义的符号：clapack_sgesv

我有这个小代码：

from numpy import *
from scipy import signal, misc
import matplotlib.pyplot as plt

path="~/pics/"
band_1 = misc.imread(path + "foo.tif");

H = array((1/2.0, 1/4.0, 1/2.0));
signal.convolve2d(band_1.flatten(), H)

plt.figure()
plt.imshow(band_1)
plt.show()

然后我执行这段代码python foo.py它抛出这个错误：

Traceback (most recent call last):
  File "foo.py", line 2, in <module>
    from scipy import signal
  File "/usr/lib/python2.6/site-packages/scipy/signal/__init__.py", line 10, in <module>
    from filter_design import *
  File "/usr/lib/python2.6/site-packages/scipy/signal/filter_design.py", line 12, in <module>
    from scipy import special, optimize
  File "/usr/lib/python2.6/site-packages/scipy/optimize/__init__.py", line 14, in <module>
    from nonlin import *
  File "/usr/lib/python2.6/site-packages/scipy/optimize/nonlin.py", line 113, in <module>
    from scipy.linalg import norm, solve, inv, qr, svd, lstsq, LinAlgError
  File "/usr/lib/python2.6/site-packages/scipy/linalg/__init__.py", line 9, in <module>
    from basic import *
  File "/usr/lib/python2.6/site-packages/scipy/linalg/basic.py", line 14, in <module>
    from lapack import get_lapack_funcs
  File "/usr/lib/python2.6/site-packages/scipy/linalg/lapack.py", line 15, in <module>
    from scipy.linalg import clapack
ImportError: /usr/lib/python2.6/site-packages/scipy/linalg/clapack.so: undefined symbol: clapack_sgesv

怎么了？好像是from scipy import signal但我不清楚。

我已经检查了其他来源和论坛，但还没有原因：

• http://old.nabble.com/scipy.interpolate-imports---%3E-lapack-errors-td30343730.html
• http://permalink.gmane.org/gmane.comp.python.scientific.user/27290

谢谢

在 Debian 上，您可以使用update-alternatives，假设您安装了多个参考实现。

From Debian 维基

update-alternatives --config liblapack.so.3
update-alternatives --config libblas.so.3