Another way to attach event handlers to a bottom Client without hardcoding the Client instance

00_views.py

import bottom
from collections import defaultdict
_handlers = defaultdict(list)


def attach_handlers(client: bottom.Client) -> bottom.Client:
    for event, funcs in _handlers.items():
        for func_builder in funcs:
            client.on(event, func=func_builder(client))


def make_keepalive(client):
    def keepalive(message=None, **kw):
        message = message or ""
        client.send("pong", message=message)
    return keepalive
_handlers["ping"].append(make_keepalive)


def make_echo(client):
    def respond(nick, target, message, **kwargs):
        bot.send("privmsg", target=target, message=message)
    return respond
_handlers["privmsg"].append(make_echo)

01_app.py

from bottom import Client
from views import attach_handlers


client = Client(...)
attach_handlers(client)

bot.loop.create_task(bot.connect())
bot.loop.run_forever()