"NoneType" 任务不能存储值

Question

我只是想用 Task 执行停止命令，但是程序 returns 这段代码
[AttributeError: 'NoneType' object has no attribute 'cancel']
似乎全局值没有存储，我我缺少有关全局值的知识？
我应该如何执行此命令

import discord
import asyncio

task = None


async def start(message):
    while True:
        await message.channel.send("loop")
        await asyncio.sleep(10)

class MyClient(discord.Client):
    async def on_ready(self):
        print('Logged on as {0}!'.format(self.user))

    async def on_message(self, message):
        if message.author == client.user:
            return

        if message.content.startswith("!p start"):
            global task
            task = await client.loop.create_task(start(message))

        elif message.content.startswith("!p stop"):
            task.cancel()
            task = None


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

if __name__ == "__main__":
    pass

重新格式化哑码

import discord
import asyncio


class TaskStore():
    global task

    def __init__(self, task):
        self.task = task


async def start(message):
    while True:
        await message.channel.send("loop")
        await asyncio.sleep(10)


class MyClient(discord.Client):
    async def on_ready(self):
        print('Logged on as {0}!'.format(self.user))

    async def on_message(self, message):
        if message.author == client.user:
            return

        if message.content.startswith("!p start"):
            TaskStore.task = await client.loop.create_task(start(message))

        elif message.content.startswith("!p stop"):
            TaskStore.task.cancel()
            TaskStore.task = None
        else:
            print("not working")


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

if __name__ == "__main__":
    pass

错误

Ignoring exception in on_message Traceback (most recent call last):
File "discord\client.py", line 270, in _run_event await coro(*args, **kwargs) File "main.py", line 30, in on_message TaskStore.task.cancel() AttributeError: type object 'TaskStore' has no attribute 'task'

Answer 1

我完全糊涂了，这是我试图实现的代码
我感谢 furas，感谢您帮助我！

已解决

import discord
import asyncio


class TaskStore():
    task = None

    def __init__(self, task):
        self.task = task


async def start(message):
    while True:
        await message.channel.send("loop")
        await asyncio.sleep(10)


class MyClient(discord.Client):
    async def on_ready(self):
        print('Logged on as {0}!'.format(self.user))

    async def on_message(self, message):
        if message.author == client.user:
            return

        if message.content.startswith("!p start"):
            if TaskStore.task != True:
                global task
                task = client.loop.create_task(start(message))
                TaskStore.task = True
            else:
                await message.channel.send("bot is currently working on it")
        elif message.content.startswith("!p stop"):
            if TaskStore.task is not None and not False:
                task.cancel()
                TaskStore.task = False
                await message.channel.send("bot will be off")
            else:
                await message.channel.send("bot is currently not working")


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

if __name__ == "__main__":
    pass

"NoneType" 任务不能存储值

"NoneType" Task cannot be store a value

python

discord.py-rewrite