message.channel.send 没有发送消息 [discord.py]

message.channel.send doesn't send message [discord.py]

import discord
from discord.ext import commands, tasks
import datetime
import requests
import time
from bs4 import BeautifulSoup


client = discord.Client()

r = requests.get("https://www.worldometers.info/coronavirus/country/italy/")
s = BeautifulSoup(r.text, "html.parser")
data = s.find_all("div",class_ = "maincounter-number")

@client.event
async def on_ready():
    print('We have logged in as {0.user}'.format(client))




@tasks.loop(seconds=50.0)
async def covid():
    x = datetime.datetime.now()
    d = x.strftime("%M")
    if d == "21":
        channel = bot.get_guild(guild).get_channel(channel)
        await message.channel.send("casi di coronavirus in italia: \ncasi totali: " + 
                           data[0].text.strip()
                           + "\nmorti totali: " + data[1].text.strip()
                           + "\nguariti totali: " + data[2].text.strip())

@covid.before_loop
async def before_printer(self):
    print('waiting...')
    await self.bot.wait_until_ready()

@covid.after_loop
async def post_loop(self):
  if self.covid.failed():
    import traceback
    error = self.covid.get_task().exception()
    traceback.print_exception(type(error), error, error.__traceback__)


client.run('token)

基本上这段代码会检查它是否是指定的时间,如果是,它会发送一条带有意大利 covid 数据的消息,但它不起作用,也没有 return 我试过的任何东西,甚至添加了一个错误处理程序(回溯)并且不执行任何操作我唯一的输出来自 async def on_ready()

所以我尝试了这个:

data = ''
@tasks.loop(seconds=50.0)
async def covid(ctx):
    global data
    x = datetime.datetime.now()
    d = x.strftime("%M")
    if d == "21":
        data = "casi di coronavirus in italia: \ncasi totali: " +                             
        data[0].text.strip() + "\nmorti totali: " + data[1].text.strip()
        return data

@covid.before_loop
async def before_printer(self):
    print('waiting...')
    await self.bot.wait_until_ready()

@client.command()
async def get_covid(ctx):
    global data
    await ctx.send(data)

但我没有得到任何输出,如果我在 async def covid 之前添加 @client.command() 它给了我这个错误: 追溯(最近一次通话): 文件“C:\Users\danie\OneDrive\Desktop\test.py”,第 26 行,位于 异步 def covid(ctx): 装饰器中的文件“C:\Users\danie\AppData\Local\Programs\Python\Python38\lib\site- packages\discord\ext\commands\core.py”,第 1162 行 结果 = 命令(*args,**kwargs)(函数) 装饰器中的文件“C:\Users\danie\AppData\Local\Programs\Python\Python38\lib\site-packages\discord\ext\commands\core.py”,第 1317 行 return cls(函数,名称=名称,**属性) 文件“C:\Users\danie\AppData\Local\Programs\Python\Python38\lib\site- packages\discord\ext\commands\core.py”,第 210 行,在 init 中 引发类型错误('Callback must be a coroutine.') 类型错误:回调必须是协程。 >>>

您需要在函数中添加上下文和 @bot.command() 装饰器,然后是您的实例。

同样:

@client.command()
async def test(ctx):
    await ctx.send('PASSED')

一条消息就是一个事件,您需要添加一个合适的侦听器才能使其正常工作。除非需要文本数据,否则不需要使用此事件。

在您的情况下,您是直接从 COVID-19 函数发送数据,该函数不会执行任何操作,因为消息未定义。 它将是:

#STORE THE VALUE OF COVID INSIDE DATA VARIABLE.
data = ''
@tasks.loop(seconds=50.0)
async def covid():
    global data
    x = datetime.datetime.now()
    d = x.strftime("%M")
    if d == "21":
        #Assign the value to DATA VARIABLE.
        data = "casi di coronavirus in italia: \ncasi totali: " + data[0].text.strip() + "\nmorti totali: " + data[1].text.strip()
        #Return the MODIFIED Data
        return data

现在用这个函数发送数据。

@client.command()
async def get_covid(ctx):
    global data
    await ctx.send(data)

另外,您错误地定义了客户端。 客户端=discord.Client() 它应该是:

# change '!' to any prefix you would like to use.
client = commands.Bot(command_prefix ='!')