无法执行与子进程shell命令.Popen

Question

当我尝试执行与subprocess.Popen命令。我得到这个错误;

In [3]: subprocess.Popen(["su - dhclient","eth0"]) 
--------------------------------------------------------------------------- 
OSError         Traceback (most recent call last) 
/home/oae/<ipython-input-3-1cd768a39571> in <module>() 
----> 1 subprocess.Popen(["su - dhclient","eth0"]) 

/usr/lib/python2.7/subprocess.pyc in __init__(self, args, bufsize, executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env, universal_newlines, startupinfo, creationflags) 
    677        p2cread, p2cwrite, 
    678        c2pread, c2pwrite, 
--> 679        errread, errwrite) 
    680 
    681   if mswindows: 

/usr/lib/python2.7/subprocess.pyc in _execute_child(self, args, executable, preexec_fn, close_fds, cwd, env, universal_newlines, startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite) 
    1247      if fd is not None: 
    1248       os.close(fd) 
-> 1249     raise child_exception 
    1250 
    1251 

OSError: [Errno 2] No such file or directory 

我该如何解决这个问题？谢谢。

Answer 1

您可以使用：

subprocess.Popen("su - dhclient eth0", shell=True)