python-telegram-bot

import os import logging from telegram import Update from telegram.ext import Application, CommandHandler, MessageHandler, filters, ContextTypes # Enable logging logging.basicConfig( format="%(asctime)s - %(name)s - %(levelname)s - %(message)s", level=logging.INFO ) # set higher logging level for httpx to avoid all GET and POST requests being logged logging.getLogger("httpx").setLevel(logging.WARNING) logger = logging.getLogger(__name__) async def start_command(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: """Sends a message when the command /start is issued.""" user = update.effective_user await update.message.reply_html( f"Hi {user.mention_html()}!\nI'm an echo bot. Send me anything!", ) async def help_command(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: """Sends a message when the command /help is issued.""" await update.message.reply_text("Help! Send me a message and I will echo it back!") async def echo(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None: """Echo the user message.""" await update.message.reply_text(update.message.text) async def main() -> None: """Start the bot.""" # Replace with your bot's token from BotFather. Get from environment variable. BOT_TOKEN = os.environ.get('TELEGRAM_BOT_TOKEN') if not BOT_TOKEN: raise ValueError("TELEGRAM_BOT_TOKEN environment variable not set.") # Create the Application and pass it your bot's token. application = Application.builder().token(BOT_TOKEN).build() # On different commands - add handlers application.add_handler(CommandHandler("start", start_command)) application.add_handler(CommandHandler("help", help_command)) # On non command messages - echo the message on Telegram application.add_handler(MessageHandler(filters.TEXT & ~filters.COMMAND, echo)) # Run the bot until the user presses Ctrl-C logger.info("Starting bot polling...") await application.run_polling(allowed_updates=Update.ALL_TYPES) if __name__ == "__main__": import asyncio asyncio.run(main())