misc.py 文件源码

def impersonation(user=None, group=None, workdir=None):
    def impersonate():
        """Change user, group and workdir"""
        if group is not None:
            os.setgroups([])
            os.setgid(grp.getgrnam(group).gr_gid)

        if user is not None:
            os.setuid(pwd.getpwnam(user).pw_uid)

        if workdir is not None:
            os.chdir(workdir)

    return impersonate