ERROR: Could not find a version that satisfies the requirement Pillow (from versions: none)
网络的问题，需要使用国内的镜像源来加速,比如豆瓣源
pip3 install pillow -image -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
Looking in indexes: http://pypi.douban.com/simple/
然后就OK了...
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