我试过了:
import os
if os.system('somecommand') == 'output from command':
do_something()
但它没有奏效。我该怎么做?我应该使用什么库?
当我使用下面的子流程解决方案时,我得到了这个错误代码:
Traceback (most recent call last):
File "", line 1, in
File "/usr/lib/python2.7/subprocess.py", line 537, in check_output
process = Popen(stdout=PIPE, *popenargs, **kwargs)
File "/usr/lib/python2.7/subprocess.py", line 679, in __init__
errread, errwrite)
File "/usr/lib/python2.7/subprocess.py", line 1259, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory
答案 0 :(得分:3)
os.system()
的返回值是进程的退出代码,而不是它输出到stdin的任何内容。您想要使用subprocess
module代替:
import subprocess
if subprocess.check_output('somecommand') == 'output from command':