我无法在shell中的python 2.7中导入numpy。我先安装python brew install，然后再安装numpy sudo pip install。我尝试了没有，sudo但出现了拒绝权限错误。无论如何，我得到这个：

ImportError: dlopen(/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_io.so, 2): Symbol not found: __PyErr_ReplaceException

Referenced from: /usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_io.so
  Expected in: flat namespace

 in /usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/lib-dynload/_io.so

在/usr/local/bin/我有以下内容：

pip
pip2
pip2.7
pip3
pip3.4

和：

python
python-config
python2
python2-config
python2.7
python2.7-config
python3
python3-config
python3.4
python3.4-config
python3.4m
python3.4m-config
pythonw
pythonw2
pythonw2.7

的输出which python是/usr/local/bin/python