background_task.py 不显示消息 - Python

background_task.py not showing messages - Python

我注意到当我 运行 来自 discord.py Github 页面的代码片段时,它没有显示预期的消息。

我稍微修改的代码:

import discord
import asyncio

import nest_asyncio
nest_asyncio.apply()

class MyClient(discord.Client):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

        # create the background task and run it in the background
        self.bg_task = self.loop.create_task(self.my_background_task())

    async def on_ready(self):
        print('Logged in as')
        print(self.user.name)
        print(self.user.id)
        print('------')

    async def my_background_task(self):
        counter = 0
        channel = self.get_channel(1234567890) # channel ID goes here
        while not self.is_closed():
            counter += 1
            await channel.send(counter)
            await asyncio.sleep(10) # task runs every 10 seconds


client = MyClient()
client.run('token')

当我检查 Discord 时没有任何显示,但它确实在 IDLE 中显示输出:

Logged in as
bot_name
1234567890
------

但在 Discord 服务器中,没有任何反应。有办法解决这个问题吗?

代码失败,因为在 bot 正确连接之前使用 self.get_channel(1234567890),导致它总是返回 None。这是因为 client = MyClient() 先完成,这意味着后台任务已创建但 bot 尚未连接,这是通过 client.run.

完成的

要解决此问题,请将循环的创建移动到 on_ready 事件内部。

import discord
import asyncio

import nest_asyncio
nest_asyncio.apply()

class MyClient(discord.Client):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

    async def on_ready(self):
        print('Logged in as')
        print(self.user.name)
        print(self.user.id)
        print('------')

        # create the background task and run it in the background
        self.bg_task = self.loop.create_task(self.my_background_task())

    async def my_background_task(self):
        counter = 0
        channel = self.get_channel(1234567890) # channel ID goes here
        while not self.is_closed():
            counter += 1
            await channel.send(counter)
            await asyncio.sleep(10) # task runs every 10 seconds


client = MyClient()
client.run('token')