sublime text 3 运行python27 和 python37

Tools - build - new build system 

输入

{

"cmd": ["C:/Python27/python.exe","-u","$file"],

"file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)",

"selector": "source.python",

}

保存为
python2.7.sublime-build

build system 选择 python2.7即可