args = ['test. exe']
subprocess.call(args, '-f')  //Error

应该是：

args = ['test.exe', '-f']
subprocess.call(args) 

命令行参数应该都在subprocess.call第一个参数的单个列表内。调用的第二个参数是bufsize，它应该是整数（因此，为什么会出现错误）

The command line argument should all be inside a single list for the first parameter of subprocess.call. The second argument to call is bufsize, which is supposed to be an integer (hence why you get the error you do)