安装ipython import path error

sudo pip install ipython --upgrade # 升级

版本兼容性问题，升级到最新版本的ipython 后，会报错

    from pickleshare import PickleShareDB
  File "/usr/local/lib/python2.7/dist-packages/pickleshare.py", line , in <module>
    from path import Path
ImportError: No module named path

解决方法，使用低版本的path.py

~$ sudo pip install -I path.py==7.7.
Downloading/unpacking path.py==7.7.

搞定！