os.setuid不会改变当前的美国

Question

我想更改当前用户以执行脚本。我做到了

import os
newuid = pwd.getpwnam('newuser').pw_uid
os.setuid(newuid)    
print('User :' + getpass.getuser());

我仍然在得到root。有比这更好的办法吗？我希望切换用户一次，然后用新用户继续脚本中的其余命令执行。

Answer 1

getpass.getuser()不使用getuid()或geteuid()获取当前用户。

http://docs.python.org/3/library/getpass.html#getpass.getuser

This function checks the environment variables LOGNAME, USER, LNAME and USERNAME, in order, and returns the value of the first one which is set to a non-empty string. If none are set, the login name from the password database is returned on systems which support the pwd module, otherwise, an exception is raised.