使用os.stat()获得的UID和GID的文件。然后，使用pwd.getpwuid()和grp.getgrgid()分别获取用户名和组名。
import grp
import pwd
import os
stat_info = os.stat('/path')
uid = stat_info.st_uid
gid = stat_info.st_gid
print uid, gid
user = pwd.getpwuid(uid)[0]
group = grp.getgrgid(gid)[0]
print user, group
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