引用numpy出错详解及解决方法

 numpy出错 解决方案

Problem: how to import numpy in subdirectory? Import error of numpy within subfolder.

错误信息：

>>> import numpy 
Traceback (most recent call last): 
 File "<stdin>", line 1, in <module> 
 File "/usr/local/lib/python2.7/dist-packages/numpy/__init__.py", line 153, in <module> 
  from . import add_newdocs 
 File "/usr/local/lib/python2.7/dist-packages/numpy/add_newdocs.py", line 13, in <module> 
  from numpy.lib import add_newdoc 
 File "/usr/local/lib/python2.7/dist-packages/numpy/lib/__init__.py", line 18, in <module> 
  from .polynomial import * 
 File "/usr/local/lib/python2.7/dist-packages/numpy/lib/polynomial.py", line 19, in <module> 
  from numpy.linalg import eigvals, lstsq, inv 
 File "/usr/local/lib/python2.7/dist-packages/numpy/linalg/__init__.py", line 50, in <module> 
  from .linalg import * 
 File "/usr/local/lib/python2.7/dist-packages/numpy/linalg/linalg.py", line 29, in <module> 
  from numpy.linalg import lapack_lite, _umath_linalg 
ImportError: libatlas.so.3gf: cannot open shared object file: No such file or directory 

可能原因：

1. 子文件夹下有自己建的numpy.py文件

2. 看最后一行的错误，找不到libatlas.so.3gf. 将其所在文件夹引入/etc/ld.so.conf,缺啥补啥

$ sudo gedit /etc/ld.so.conf

写入/usr/lib/atlas-base

$ sudo ldconfig

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