我很累尝试为phyton 2.7.5安装numpy和scipy，我需要此版本的python，因为我的最终目标是安装类（http://class-code.net/）和montepython（http：// montepython .net /）。
（我有Ubuntu 12.04）
当我尝试导入numpy或scipy时，每次都会出现以下错误：
$ phyton2.7
>>> import numpy
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/numpy/__init__.py", line 137, in <module>
import add_newdocs
File "/usr/lib/python2.7/dist-packages/numpy/add_newdocs.py", line 9, in <module>
from numpy.lib import add_newdoc
File "/usr/lib/python2.7/dist-packages/numpy/lib/__init__.py", line 4, in <module>
from type_check import *
File "/usr/lib/python2.7/dist-packages/numpy/lib/type_check.py", line 8, in <module>
import numpy.core.numeric as _nx
File "/usr/lib/python2.7/dist-packages/numpy/core/__init__.py", line 5, in <module>
import multiarray
ImportError: /usr/lib/python2.7/dist-packages/numpy/core/multiarray.so: undefined symbol: PyUnicodeUCS4_AsUnicodeEscapeString
>> import scipy
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/dist-packages/scipy/__init__.py", line 78, in <module>
from numpy import show_config as show_numpy_config
File "/usr/lib/python2.7/dist-packages/numpy/__init__.py", line 137, in <module>
import add_newdocs
File "/usr/lib/python2.7/dist-packages/numpy/add_newdocs.py", line 9, in <module>
from numpy.lib import add_newdoc
File "/usr/lib/python2.7/dist-packages/numpy/lib/__init__.py", line 4, in <module>
from type_check import *
File "/usr/lib/python2.7/dist-packages/numpy/lib/type_check.py", line 8, in <module>
import numpy.core.numeric as _nx
File "/usr/lib/python2.7/dist-packages/numpy/core/__init__.py", line 5, in <module>
import multiarray
ImportError: /usr/lib/python2.7/dist-packages/numpy/core/multiarray.so: undefined symbol: PyUnicodeUCS4_AsUnicodeEscapeString为了摆脱错误，我尝试过：
- 满足python要求：
$ sudo apt-get install build-essential python-dev gfortran - 使用apt-get安装：
$ sudo apt-get install python-numpy python-scipy python-matplotlib ipython ipython-notebook python-pandas python-sympy python-nose - 用pip安装要求：
$ sudo pip install requests - ...并尝试使用pip安装：
$ sudo pip install numpy和$ sudo pip install scipy - 我已经有环境var：
export PYTHONPATH=/usr/lib/python2.7/dist-packages:${PYTHONPATH}上次安装numpy和scipy（在较早的ubuntu版本10.x中）对我有用。 sudo sh -c "wget http://python-distribute.org/distribute_setup.py -O- | python"sudo sh -c "wget https://raw.github.com/pypa/pip/master/contrib/get-pip.py -O- | python"然后使用（4）中的pip安装它们但是现在看来python-distribute.org的服务器已关闭。我收到以下错误：
http://python-distribute.org/distribute_setup.py Resolving python-distribute.org (python-distribute.org)... failed: Name or service not known. wget: unable to resolve host address `python-distribute.org'我还尝试从Synaptic和Ubuntu软件中心安装numpy和scipy
我在每次尝试中都失败了，现在我不知道该怎么办。我想念什么吗？如何为python正确安装numpy和scipy？任何想法将不胜感激。
当我做
echo $PYTHONPATH我懂了
/usr/lib/python2.7/dist-packages
也许有帮助：effbot.org/pyfaq/…–
—
Rmano
好吧，@ MadMike我确实有一个问题，
—
Jorge
$PYTHONPATH我已经删除了中的定义.bashrc，但是我仍然在其他地方有一个定义，因为我仍然有可以获取的env var $PYTHONPATH：（bash: /usr/lib/python2.7/dist-packages:: No such file or directory双冒号）...
我已经通过写
—
Jorge
.bashrc文件来纠正了export PYTHONPATH=/usr/lib/python2.7/dist-packages...我做了UCS4 build / UCS2 build作为@Rmano sugest，但是在两种情况下我仍然遇到相同的问题...：\
学分应该去@Rmano。numpy和scipy的越野车版本存在问题。有了升级版，一切都会按预期进行。
—
MadMike 2013年
echo $PYTHONPATH到您的问题中。谢谢您：-)