0

检查python版本

✈  python --version
Python 2.7.2

列出其中的包virtualenv

✈  pip freeze
PyBrain==0.3
numpy==1.6.1
scipy==0.10.1
wsgiref==0.1.2

加载解释器

>>> import numpy
>>> print numpy.__version__
1.6.1
>>> import scipy
>>> print scipy.__version__
0.10.1
>>> import pybrain
 Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
 File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/pybrain/__init__.py", line 1, in <module>
from structure.__init__ import *
  File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/pybrain/structure/__init__.py", line 2, in <module>
from modules.__init__ import *
  File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/pybrain/structure/modules/__init__.py", line 2, in <module>
from gate import GateLayer, DoubleGateLayer, MultiplicationLayer, SwitchLayer
  File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/pybrain/structure/modules/gate.py", line 11, in <module>
from pybrain.tools.functions import sigmoid, sigmoidPrime
  File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/pybrain/tools/functions.py", line 4, in <module>
from scipy.linalg import inv, det, svd
  File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/scipy/linalg/__init__.py", line 116, in <module>
from basic import *
  File "/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/scipy/linalg/basic.py", line 14, in <module>
from scipy.linalg import calc_lwork
ImportError: dlopen(/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/scipy/linalg/calc_lwork.so, 2): Symbol not found: __gfortran_concat_string
  Referenced from: /Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/scipy/linalg/calc_lwork.so
  Expected in: dynamic lookup
4

2 回答 2

1 
ImportError: dlopen(/Users/milktrader/.virtualenvs/pybrain/lib/python2.7/site-packages/scipy/linalg/calc_lwork.so, 2): Symbol not found: __gfortran_concat_string

我不确定——因为我之前没有弄乱这个库——但是你需要编译其中一个支持 Fortran 的包吗？当我在工作时在我的 Mac 上安装 numpy/scipy 时，我必须安装GFortran，以便正确设置框架的所有绑定和基础。也许这就是为什么 scipy 会死在你身上的原因。

于 2012-04-02T00:34:22.947 回答
0

可能是因为 OSX python 上默认没有安装 scipy。

试试这个来证明

>>> import scipy
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named scipy
>>>
于 2012-04-01T20:10:49.330 回答