def _cbListWork(self, mailboxes, tag, sub, cmdName):
        for (name, box) in mailboxes:
            if not sub or self.account.isSubscribed(name):
                flags = box.getFlags()
                delim = box.getHierarchicalDelimiter()
                resp = (DontQuoteMe(cmdName), map(DontQuoteMe, flags), delim, name.encode('imap4-utf-7'))
                self.sendUntaggedResponse(collapseNestedLists(resp))
        self.sendPositiveResponse(tag, (cmdName,) % '%s completed')
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/mail/imap4.py/IMAP4Server._cbListWork/swapped operands of `%`