当我从普通用户打开python时，我无法在终端中导入Python模块（尽管它适用于root用户）：
我得到的错误是：
import numpy
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/numpy/__init__.py", line 180, in <module>
from . import add_newdocs
File "/usr/lib/python2.7/dist-packages/numpy/add_newdocs.py", line 13, in <module>
from numpy.lib import add_newdoc
File "/usr/lib/python2.7/dist-packages/numpy/lib/__init__.py", line 8, in <module>
from .type_check import *
File "/usr/lib/python2.7/dist-packages/numpy/lib/type_check.py", line 11, in <module>
import numpy.core.numeric as _nx
File "/usr/lib/python2.7/dist-packages/numpy/core/__init__.py", line 58, in <module>
from numpy.testing.nosetester import _numpy_tester
File "/usr/lib/python2.7/dist-packages/numpy/testing/__init__.py", line 12, in <module>
from . import decorators as dec
File "/usr/lib/python2.7/dist-packages/numpy/testing/decorators.py", line 21, in <module>
from .utils import SkipTest
File "/usr/lib/python2.7/dist-packages/numpy/testing/utils.py", line 15, in <module>
from tempfile import mkdtemp, mkstemp
File "/usr/lib/python2.7/tempfile.py", line 32, in <module>
import io as _io
File "/home/praneeth/computervision/code/caffe-master/distribute/python/caffe/io.py", line 2, in <module>
import skimage.io
File "/home/praneeth/scikit-image/skimage/__init__.py", line 158, in <module>
from .util.dtype import *
File "/home/praneeth/scikit-image/skimage/util/__init__.py", line 1, in <module>
from .dtype import (img_as_float, img_as_int, img_as_uint, img_as_ubyte,
File "/home/praneeth/scikit-image/skimage/util/dtype.py", line 8, in <module>
dtype_range = {np.bool_: (False, True),
AttributeError: 'module' object has no attribute 'bool_'
与所有模块一样，它不仅是numpy。我尝试了其他类似问题中建议的解决方案，但它们尚未解决。例如：无法导入绝对安装的Python模块（Mechanize）
命令$PYTHONPATH的输出是：
软件包/
另外，我的系统路径未经根许可是：
import sys
sys.path
['', '/home/praneeth/computervision/code/caffe-master/distribute/python/caffe', '/home/praneeth/computervision/code/caffe-master/python/caffe', '/usr/lib/python2.7/dist-packages', '/home/praneeth', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/home/praneeth/scikit-image', '/usr/lib/python2.7/dist-packages/PILcompat', '/usr/lib/python2.7/dist-packages/gtk-2.0']
edit1：SYS.与根用户相同的PATH与没有根用户的PATH相同，期望那些CAFFE安装路径。这是root用户的结果：
sudo python
Python 2.7.12 (default, Nov 19 2016, 06:48:10)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
['', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages', '/home/praneeth/scikit-image', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7/dist-packages/PILcompat']
终于解决了！问题是因为在安装Caffe时，为Python安装了Numpy和Scipy（具有不同的版本）和其他一些版本的Numpy。两个Numpy和Scipy相关库之间存在版本冲突，因此，Python解释器无法导入它们。
这次再次正确地重新安装了Caffe，而没有任何版本冲突，并且问题解决了。
感谢您的帮助