aiogram — asynchronous Python framework for the Telegram Bot API

import asyncio
import logging
from os import getenv

from aiogram import Bot, Dispatcher
from aiogram.filters import CommandStart
from aiogram.types import Message

dp = Dispatcher()


@dp.message(CommandStart())
async def start(message: Message) -> None:
    await message.answer(f"Hello, {message.from_user.full_name}!")


@dp.message()
async def echo(message: Message) -> None:
    try:
        await message.send_copy(chat_id=message.chat.id)
    except TypeError:
        await message.answer("Nice try!")


async def main() -> None:
    bot = Bot(token=getenv("BOT_TOKEN"))
    await dp.start_polling(bot)


if __name__ == "__main__":
    logging.basicConfig(level=logging.INFO)
    asyncio.run(main())