如何解决Telegram Bot中Updater的TypeError：缺少update_queue参数？

错误原因 #

你遇到的TypeError: __init__() missing 1 required positional argument: 'update_queue'，是因为python-telegram-bot v20及以上版本已完全移除Updater类，旧版本的初始化逻辑不再兼容。

修正方案 #

改用新版本的Application类替代Updater，同时调整代码适配异步环境（用异步请求库避免阻塞定时任务）。以下是修正后的完整代码：

import asyncio
import aiohttp
from bs4 import BeautifulSoup
from telegram import InputMediaPhoto
from telegram.ext import ApplicationBuilder

# Telegram Bot API Token
API_TOKEN = 'XXXXXXXXXXXXXXXXX'

# URL of the website
URL = 'https://chemiehalle.de'

# List for storing seen posts
seen_posts = []

# Async function for fetching posts
async def get_posts(bot):
    async with aiohttp.ClientSession() as session:
        async with session.get(URL) as res:
            # Parse HTML content
            soup = BeautifulSoup(await res.text(), 'html.parser')
            # Find all posts on the website
            posts = soup.find_all('article')
            # 倒序处理，优先检测最新帖子
            for post in reversed(posts):
                # Get title of the post
                title = post.find('h2', class_='entry-title').text.strip()
                # Check if post has already been seen
                if title not in seen_posts:
                    try:
                        # Get image URL
                        image_src = post.find('img')['src']
                        # Get short text of the post
                        text = post.find('div', class_='entry-content clearfix').find('p').text.strip()
                        # Send image, title, and text as message
                        await bot.send_media_group(
                            chat_id='@chemiehalleBot',
                            media=[InputMediaPhoto(media=image_src, caption=f"{title}\n\n{text}")]
                        )
                        # Add title of the post to the list of seen posts
                        seen_posts.append(title)
                        print(f"New post sent: {title}")
                    except Exception as e:
                        print(f"Error processing post: {e}")

# Main loop
async def main():
    # Initialize Telegram Bot with ApplicationBuilder
    application = ApplicationBuilder().token(API_TOKEN).build()
    bot = application.bot
    
    while True:
        await get_posts(bot)
        print("Checked for new posts")
        await asyncio.sleep(15)

if __name__ == "__main__":
    asyncio.run(main())

关键改动说明 #

• 替换Updater为ApplicationBuilder：这是python-telegram-bot v20+的标准初始化方式
• 异步请求改造：用aiohttp替代requests，避免同步请求阻塞async事件循环
• 异步消息发送：调用bot.send_media_group时添加await，适配异步上下文
• 异常捕获：增加错误处理，避免单个帖子处理失败导致程序崩溃
• 帖子倒序处理：确保最新发布的帖子优先被检测和推送

前置依赖安装 #

执行代码前需要安装异步请求库：

pip install aiohttp

内容的提问来源于stack exchange，提问作者Nicholas