<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def setattr(self, req, ino, attr, to_set, fi):
 """Set file attributes Valid replies: reply_attr reply_err """

        self.reply_err(req, errno.EROFS)