Telegram bot for video downloading

First, you'll need to create a new bot on Telegram by talking to the BotFather. You'll receive an API token that you can use to interact with the Telegram Bot API.
Then, you can use the python-telegram-bot library to interact with the Telegram Bot API. You can install it using pip:

pip install python-telegram-bot

Next, you'll need to install a library for downloading and converting videos, such as youtube-dl. You can install it using pip:

pip install youtube-dl

You can use the following code to handle messages sent to your bot and download videos in different formats:

import logging
import subprocess
from telegram import Bot
from telegram import Update
from telegram.ext import Updater
from telegram.ext import CommandHandler
from telegram.ext import MessageHandler
from telegram.ext import Filters
logging.basicConfig(format='%(asctime)s - %(name)s - %(levelname)s - %(message)s', level=logging.INFO)
logger = logging.getLogger(__name__)
def start(bot, update):
update.message.reply_text("Hi! I can help you download videos in different formats.")
def help(bot, update):
update.message.reply_text("Use /download to download a video.")
def download(bot, update, args):
if len(args) != 1:
update.message.reply_text("Please provide a valid video URL.")
return
video_url = args[0]
video_format = "bestvideo[ext=mp4]+bestaudio[ext=m4a]/best[ext=mp4]/best"
# Use youtube-dl to download the video
result = subprocess.run(["youtube-dl", "-f", video_format, "--output", "video.%(ext)s", video_url], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
if result.returncode != 0:
update.message.reply_text("Failed to download the video.")
return
# Send the video file to the user
with open("video.mp4", "rb") as f:
bot.send_video(chat_id=update.message.chat_id, video=f)
update.message.reply_text("Video has been downloaded and sent.")
def error(bot, update, error):
logger.warning('Update "%s" caused error "%s"', update, error)
def main():
# Create an Updater object and attach a handler to it
updater = Updater(token="")
dispatcher = updater.dispatcher
start_handler = CommandHandler('start', start)
help_handler = CommandHandler('help', help)
download_handler = CommandHandler('download', download, pass_args=True)
error_handler = MessageHandler(Filters.text, error)
dispatcher.add