gistfile1.txt

import irc3
from irc3.plugins.command import command

@irc3.plugin
class MyPlugin:
    def __init__(self, bot):
        self.bot = bot
        self.relay_enabled = {}

    @command(permission='admin', public=True
    async def disable(self, mask, target, args):
        """Disable message relay for a channel
            %%disable <channel>
        """
        channel = args['<channel>']
        self.relay_enabled[channel] = False
        return f"Relay disabled for {channel}"

    @irc3.event(irc3.rfc.PRIVMSG)
    async def on_message(self, mask, target, data, **kwargs):
        if target in self.relay_enabled and self.relay_enabled[target]:
            if target != self.bot.config.main_channel:
                self.bot.privmsg(self.bot.config.main_channel, f"[{target}] <{mask.nick}>: {data}")

    @irc3.event(irc3.rfc.JOIN)
    async def on_join(self, channel, mask):
        self.relay_enabled[channel] = True

config = {
    "nick": 'test',
    "username": 'test',
    "realname": 'Dazzled',
    "autojoins": ['#channel', '#channel1', '#channel2'],
    "host": 'irc.address.net',
    "port": 6697,
    "ssl": True,
    "sasl_username": 'Username',
    "sasl_password": 'Password',
    "includes": ['irc3.plugins.core', __name__],
    "main_channel": '#channel'
}

if __name__ == '__main__':
    bot = irc3.IrcBot.from_config(config)
    bot.run(forever=True)