yacs 是Ross Girshick 开发的一个工具。https://github.com/rbgirshick/yacs
Ross Girshick是目标检测界的领军人物，在2015年提出faster RCNN。
yacs安装：
D:\PycharmProjects\gitRepository2018\git_yacs\yacs>python setup.py install
running install
running bdist_egg
running egg_info
creating yacs.egg-info
writing yacs.egg-info\PKG-INFO
writing dependency_links to yacs.egg-info\dependency_links.txt
writing requirements to yacs.egg-info\requires.txt
writing top-level names to yacs.egg-info\top_level.txt
writing manifest file 'yacs.egg-info\SOURCES.txt'
reading manifest file 'yacs.egg-info\SOURCES.txt'
writing manifest file 'yacs.egg-info\SOURCES.txt'
installing library code to build\bdist.win-amd64\egg
running install_lib
running build_py
creating build
creating build\lib
creating build\lib\yacs
copying yacs\config.py -> build\lib\yacs
copying yacs\tests.py -> build\lib\yacs
copying yacs
