def join(self, channel, password=None):
""" join channel with optional password. """
if not channel: return
if password:
self._raw('JOIN %s %s' % (channel, password))
chan = ChannelBase(channel, self.botname)
if chan: chan.setpass('IRC', password)
else: self._raw('JOIN %s' % channel)
if self.state:
if channel not in self.state.data.joinedchannels:
self.state.data.joinedchannels.append(channel)
self.state.save()
