Python 主、次(major,minor)版本号获取
import sys
sys.version_infor
sys.version_infor.major
sys.version_infor.minor
sys.version_infor.major + sys.version_infor.minor * 0.1
import sys
sys.version_infor
sys.version_infor.major
sys.version_infor.minor
sys.version_infor.major + sys.version_infor.minor * 0.1