RuntimeError:这个事件循环已经在运行aiogram了

Question

我想制作电报机器人下载TikTok视频。我需要下载TikTok视频使用它的网址。在我发送带有链接的消息后，它会引发此错误。我该怎么解决呢？有没有其他方式下载TikTok视频，我的代码如下。

ERROR: 
Traceback (most recent call last):
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\site-packages\aiogram\dispatcher\dispatcher.py", line 415, in _process_polling_updates
    for responses in itertools.chain.from_iterable(await self.process_updates(updates, fast)):
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\site-packages\aiogram\dispatcher\dispatcher.py", line 235, in process_updates
    return await asyncio.gather(*tasks)
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\site-packages\aiogram\dispatcher\handler.py", line 116, in notify
    response = await handler_obj.handler(*args, **partial_data)
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\site-packages\aiogram\dispatcher\dispatcher.py", line 256, in process_update
    return await self.message_handlers.notify(update.message)
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\site-packages\aiogram\dispatcher\handler.py", line 116, in notify
    response = await handler_obj.handler(*args, **partial_data)
  File "C:\Users\User\Desktop\scripts\saveassbot\bot.py", line 28, in text
    with TikTokApi() as api:
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\site-packages\TikTokApi\tiktok.py", line 159, in __init__
    self._initialize(
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\site-packages\TikTokApi\tiktok.py", line 205, in _initialize
    self._browser = asyncio.get_event_loop().run_until_complete(
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 618, in run_until_complete
    self._check_running()
  File "C:\Users\User\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 578, in _check_running
    raise RuntimeError('This event loop is already running')
RuntimeError: This event loop is already running

Code:
    # -*- coding: utf-8 -*-
    from aiogram import Bot, Dispatcher, executor, types
    import logging
    import main
    import config
    from TikTokApi import TikTokApi
    
    logging.basicConfig(level=logging.INFO)
    bot = Bot(token=config.token)
    dp = Dispatcher(bot)
    
    
    @dp.message_handler(commands=['start'])
    async def send_welcome(message: types.Message):
        # if(not BotDB.user_exists(message.from_user.id)):
        #    BotDB.add_user(message.from_user.id, message.from_user.username)
        await bot.send_message(message.from_user.id,
                               f'hello',
                               parse_mode="Markdown")
    
    
    @dp.message_handler(content_types=['text'])
    async def text(message: types.Message):
        if message.text.startswith('https://vt.tiktok.com'):
            video_url = message.text
            with TikTokApi() as api:
                video = api.video(url=f"{video_url}")
    
                # Bytes of the TikTok video
                video_data = video.bytes()
    
                with open(f"{message.from_user.id}", "wb") as out_file:
                    out_file.write(video_data)
    
    
    if __name__ == "__main__":
        executor.start_polling(dp, skip_updates=True)

Answer 1

从外表上看，从某种意义上说，如果已经运行了异步循环(当您使用aiogram时)，则无法构造TikTokApi库。

在进入aiogram循环之前，通过在程序开始时对API进行初始化，可以看出“滥用”API是否有效：

# ...
dp = Dispatcher(bot)
tiktok_api = TikTokApi()
# ...
async def text(message: types.Message):
   # ...
   video = tiktok_api.video(...)

但我不会指望它。