我正在使用subprocess
来执行名为trace.py的Python脚本,它位于不同的文件夹中。脚本trace.py然后使用子进程运行traceroute命令,然后打印输出。当我去到trace.py位于并在终端输入这个文件夹:Python脚本从终端执行,但不是在使用子进程时执行?
python trace.py
或
./trace.py
或从任何位置:
python /home/.../cgi-bin/trace.py
它工作正常并将traceroute打印到终端。但是,当我尝试使用subprocess
从main.py执行trace.py时,它似乎不起作用。我已经通过创建test.py并使用subprocess从main.py执行它并测试了这个方法。我这样做有以下情况:
output = subprocess.check_output([sys.executable, script_path])
哪里script_path
是trace.py
绝对路径。
完整的错误我得到的是这样的(路径缩短):
Traceback (most recent call last):
File "/home/.../cgi-bin/trace.py", line 11, in <module>
traceroute = subprocess.check_output(["traceroute", "www.google.com"])
File "/usr/lib/python2.7/subprocess.py", line 566, in check_output
process = Popen(stdout=PIPE, *popenargs, **kwargs)
File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
errread, errwrite)
File "/usr/lib/python2.7/subprocess.py", line 1327, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory
Traceback (most recent call last):
File "main.py", line 97, in <module>
serve(args.port, public_html, cgibin)
File "main.py", line 55, in serve
process = subprocess.check_output(["/usr/bin/python", script_path])
File "/usr/lib/python2.7/subprocess.py", line 573, in check_output
raise CalledProcessError(retcode, cmd, output=output)
subprocess.CalledProcessError: Command '['/usr/bin/python', '/home/.../cgi-bin/trace.py']' returned non-zero exit status 1
为什么这个不行的,但是从终端执行它呢?
可以输出'python trace.py --ip www.google.com; echo $?' – jepio
退出状态是'1'。终端不感兴趣。试试'echo $?'看看它是'1'。 –
@PeterWood退出状态为0. – Esoemah