python执行控制台命令工具类

1.工具类 

def read_from_cmd(cmd, decode='utf-8'):
    with subprocess.Popen(
            cmd,
            stdout=subprocess.PIPE,
            stderr=subprocess.DEVNULL,
            stdin=subprocess.DEVNULL,
            shell=True,
    ) as stream:
        stdout = stream.communicate()[0].decode(decode)
    return stdout

2.使用示例：

①：windows获取IP信息

②：windows获取本机谷歌浏览器的安装地址：