iPython安装在 Mac OS X Mountain Lion 上,使用pip. ipython notebook在终端中运行时,出现错误
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File "/Users/god/.virtualenvs/datasci/lib/python2.7/site-packages/IPython/html/notebookapp.py", line 38, in <module>
from jinja2 import Environment, FileSystemLoader
ImportError: No module named jinja2
问题:这里有什么问题,我们应该如何解决?