pip install matplotlib -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
pip install numpy -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
pip install pandas -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
pip install seaborn scipy -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
1、[AttributeError: 'dict' object has no attribute 'iteritems']
原因：Python3.5之后：iteritems变为items
