Get the channel exceptlist.
        Required arguments:
        * channel - Channel of which to get the exceptlist for.

def exceptlist(self, channel):
        """
        Get the channel exceptlist.
        Required arguments:
        * channel - Channel of which to get the exceptlist for.
        """
        with self.lock:
            self.is_in_channel(channel)

            self.send('MODE %s e' % channel)
            excepts = []

            while self.readable():
                msg = self._recv(expected_replies=('348', '349'))

                if msg[0] == '348':
                    exceptmask, who, timestamp = msg[2].split()[1:]
                    excepts.append((self._from_(exceptmask), who, \
                                    self._m_time.localtime(int(timestamp))))
                elif msg[0] == '349':
                    break

            return excepts