Here's a basic implementation of the Telegram bot:

def start(update, context): context.bot.send_message(chat_id=update.effective_chat.id, text='Welcome! Send me a YouTube video URL to download.')

logging.basicConfig(level=logging.INFO)

import logging from telegram.ext import Updater, CommandHandler, MessageHandler from pytube import YouTube

def main(): updater = Updater(TOKEN, use_context=True) dp = updater.dispatcher

def download(update, context): url = update.message.text try: yt = YouTube(url) yt.streams.get_highest_resolution().download() context.bot.send_message(chat_id=update.effective_chat.id, text='Video downloaded successfully!') context.bot.send_document(chat_id=update.effective_chat.id, document=open(yt.title + '.mp4', 'rb')) except Exception as e: context.bot.send_message(chat_id=update.effective_chat.id, text='Error downloading video: ' + str(e))

dp.add_handler(CommandHandler('start', start)) dp.add_handler(MessageHandler(Filters.regex(r'https?://www\.youtube\.com/.*'), download))