在Python3中使用子流程模块时出现OSError

Question

我已经准备了一个Shell脚本，它将自动执行一些以太网测试用例。但是当我尝试使用以下代码运行它

    import subprocess
    subprocess.run(['./script.sh'])

我遇到了以下错误

    Traceback (most recent call last):
    File "./testing.py", line 6, in <module>
      result=subprocess.run(["./Ethernet.sh"], stdout=subprocess.PIPE)
    File "/usr/lib/python3.5/subprocess.py", line 383, in run
      with Popen(*popenargs, **kwargs) as process:
    File "/usr/lib/python3.5/subprocess.py", line 676, in __init__
      restore_signals, start_new_session)
    File "/usr/lib/python3.5/subprocess.py", line 1282, in _execute_child
      raise child_exception_type(errno_num, err_msg)
    OSError: [Errno 8] Exec format error

但是我能够运行一个包含命令（ls，cat，ifconfig等）的小脚本。 我只想了解为什么我会收到此错误