RuntimeError:超时上下文管理器应该在任务中使用 [英] RuntimeError: Timeout context manager should be used inside a task

问题描述

背景:我在 Discord 客户端旁边托管了一个 Flask 服务器

Background: I am hosting a flask server alongside a discord client

flask 服务器只需要将来自客户端的消息传递给 discord，并将来自 discord 的消息传递给客户端.

The flask server just needs to pass on messages from the client to discord and from messages from discord to the client.

当我调用 loop.run_until_complete(sendMsg(request)) 时出现错误我在 sendMsg 和 wait_for loop.run_until_complete()

I am getting the error when I call loop.run_until_complete(sendMsg(request)) I have tried wait_for in sendMsg and wait_for loop.run_until_complete()

我到处找都没有找到任何帮助，我们将不胜感激.

I have looked everywhere and haven't found anything so any help would be appreciated.

代码:

import discord
import json
import os
import asyncio
from flask import Flask, request, render_template
from async_timeout import timeout
from threading import Thread
from time import sleep

client = discord.Client()
messages = []
app = Flask(__name__)

def startClient():
    loop = asyncio.new_event_loop()
    asyncio.set_event_loop(loop)
    client.run('token')


#
# Discord Events
#
@client.event
async def on_ready():
    print('Discord Client Ready')

@client.event
async def on_message(message):
    global messages
    message.append(message)


#
# Flask Stuff
#
async def sendMsg(request):
    await client.send_message(discord.Object('channel id'), request.form['message'])


@app.route("/chat/", methods=['GET', 'POST'])
def chatPage():
    global messages

    if request.method == 'GET':
        return render_template('main.html')

    elif request.method == 'POST':
        loop = asyncio.new_event_loop()
        loop.run_until_complete(sendMsg(request))
        return ''

@app.route("/chat/get", methods=['GET'])
def chatGet():
    return json.dumps(messages[int(request.args['lastMessageId']):])


# Start everything
os.environ["WERKZEUG_RUN_MAIN"] = 'true'
print('Starting discord.py client')
Thread(target=startClient).start()
print('Starting flask')
app.run(host='0.0.0.0', debug=True)

追溯:

Traceback (most recent call last):
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/flask/app.py", line 2309, in __call__
    return self.wsgi_app(environ, start_response)
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/flask/app.py", line 2295, in wsgi_app
    response = self.handle_exception(e)
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/flask/app.py", line 1741, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/flask/app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/flask/app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/flask/app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/flask/app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/mnt/c/Users/SuperKooks/Documents/Coding/HTML/kindle-discord/app.py", line 51, in chatPage
    loop.run_until_complete(sendMsg(request))
  File "/usr/lib/python3.5/asyncio/base_events.py", line 387, in run_until_complete
    return future.result()
  File "/usr/lib/python3.5/asyncio/futures.py", line 274, in result
    raise self._exception
  File "/usr/lib/python3.5/asyncio/tasks.py", line 239, in _step
    result = coro.send(None)
  File "/mnt/c/Users/SuperKooks/Documents/Coding/HTML/kindle-discord/app.py", line 39, in sendMsg
    await client.send_message(discord.Object('382416348007104513'), request.form['message'])
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/discord/client.py", line 1152, in send_message
    data = yield from self.http.send_message(channel_id, content, guild_id=guild_id, tts=tts, embed=embed)
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/discord/http.py", line 137, in request
    r = yield from self.session.request(method, url, **kwargs)
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/aiohttp/client.py", line 555, in __iter__
    resp = yield from self._coro
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/aiohttp/client.py", line 197, in _request
    with Timeout(timeout, loop=self._loop):
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/async_timeout/__init__.py", line 39, in __enter__
    return self._do_enter()
  File "/home/SuperKooks/.local/lib/python3.5/site-packages/async_timeout/__init__.py", line 76, in _do_enter
    raise RuntimeError('Timeout context manager should be used '
RuntimeError: Timeout context manager should be used inside a task

推荐答案

aiohttp.ClientSession() 想要在协程内部调用.尝试将您的 Client() 初始值设定项移动到任何 async def 函数

aiohttp.ClientSession() wants to be called inside a coroutine. Try moving your Client() initializer into any async def function

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