同时运行异步机器人到Tkinter GUI

Question

我正在尝试集成Python Twitch机器人(https://github.com/TwitchIO/TwitchIO)转换为Tkinter GUI。这是从twitch.io.ext.commands.bot中派生出来的机器人程序I

import os
from twitchio.ext import commands
from dotenv import load_dotenv
from os.path import join, dirname
class Bot(commands.Bot):
def __init__(self):
dir_path = os.path.dirname(os.path.realpath(__file__))
dotenv_path = join(dir_path, '.env')
load_dotenv(dotenv_path)
TMI_TOKEN = os.environ.get('TMI_TOKEN')
CLIENT_ID = os.environ.get('CLIENT_ID')
BOT_NICK = os.environ.get('BOT_NICK')
BOT_PREFIX = os.environ.get('BOT_PREFIX')
CHANNEL = os.environ.get('CHANNEL')
super().__init__(irc_token=TMI_TOKEN,
client_id=CLIENT_ID,
nick=BOT_NICK,
prefix=BOT_PREFIX,
initial_channels=[CHANNEL])

async def start(self):
await self._ws._connect()
try:
await self._ws._listen()
except KeyboardInterrupt:
pass
finally:
self._ws.teardown()

async def stop(self):
self._ws.teardown()

async def event_ready(self):
print("ready")

async def event_message(self, message):
print(message.content)
await self.handle_commands(message)

@commands.command(name='test')
async def my_command(self, ctx):
await ctx.send(f'Hello {ctx.author.name}!')

这是Tkinter GUI

try:
import Tkinter as Tk
except ModuleNotFoundError:
import tkinter as Tk
import asyncio
from bot import Bot
bot = Bot()
loop = asyncio.get_event_loop()
def on_start():
print("start")
loop.run_until_complete(bot.start())
def on_stop():
print("stop")
loop.run_until_complete(bot.stop())
if __name__ == '__main__':
root = Tk.Tk()
frame = Tk.Frame(root)
start_button = Tk.Button(frame.master, text="start", command = on_start)
start_button.pack()
stop_button = Tk.Button(frame.master, text="stop", command = on_stop)
stop_button.pack()
root.mainloop()

因此，当按下启动按钮时，机器人会自动启动并连接到Twitch。然而，GUI在on_start()中的loop.run_until_complete(bot.start())之后被卡住，它永远不会返回。我如何能够在GUI上同时运行机器人程序？

Answer 1

您可以尝试在不同的线程中运行事件循环，并以线程安全的方式向其提交任务。例如：

loop = asyncio.get_event_loop()
threading.Thread(daemon=True, target=loop.run_forever).start()
# ... in the GUI:
def on_start():
print("start")
asyncio.run_coroutine_threadsafe(loop, bot.start())
def on_stop():
print("stop")
asyncio.run_coroutine_threadsafe(loop, bot.stop())