使用Idle的Python子进程

Question

I am new to python scripting. I am trying to run subprocess methods on Python Idle and getting these errors:

import subprocess
subprocess.check_output("ls")

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Users\ramakrishna\AppData\Local\Programs\Python\Python36\lib\subprocess.py", line 336, in check_output
  **kwargs).stdout
File "C:\Users\ramakrishna\AppData\Local\Programs\Python\Python36\lib\subprocess.py", line 403, in run
  with Popen(*popenargs, **kwargs) as process:
File "C:\Users\ramakrishna\AppData\Local\Programs\Python\Python36\lib\subprocess.py", line 707, in __init__
  restore_signals, start_new_session)
File "C:\Users\ramakrishna\AppData\Local\Programs\Python\Python36\lib\subprocess.py", line 990, in _execute_child
  startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified

Please help me out to resolve this error. Thank you

Answer 1

seems like you are running windows. Windows has no "ls" command, so you get a FileNotFoundError exception. I am not familiar with windows and python, but try "dir" instead of "ls", that should work.