#!/usr/bin/env python # -*- coding: utf-8 -*- """Simple inline keyboard bot with multiple CallbackQueryHandlers. This Bot uses the Updater class to handle the bot. First, a few callback functions are defined as callback query handler. Then, those functions are passed to the Dispatcher and registered at their respective places. Then, the bot is started and runs until we press Ctrl-C on the command line. Usage: Example of a bot that uses inline keyboard that has multiple CallbackQueryHandlers arranged in a ConversationHandler. Send /start to initiate the conversation. Press Ctrl-C on the command line to stop the bot. """ from telegram import InlineKeyboardButton, InlineKeyboardMarkup from telegram.ext import Updater, CommandHandler, CallbackQueryHandler, ConversationHandler import logging # Enable logging logging.basicConfig(format='%(asctime)s - %(name)s - %(levelname)s - %(message)s', level=logging.INFO) logger = logging.getLogger(__name__) # Stages FIRST, SECOND = range(2) # Callback data ONE, TWO, THREE, FOUR = range(4) def start(update, context): """Send message on `/start`.""" # Get user that sent /start and log his name user = update.message.from_user logger.info("User %s started the conversation.", user.first_name) # Build InlineKeyboard where each button has a displayed text # and a string as callback_data # The keyboard is a list of button rows, where each row is in turn # a list (hence `[[...]]`). keyboard = [ [InlineKeyboardButton("1", callback_data=str(ONE)), InlineKeyboardButton("2", callback_data=str(TWO))] ] reply_markup = InlineKeyboardMarkup(keyboard) # Send message with text and appended InlineKeyboard update.message.reply_text( "Start handler, Choose a route", reply_markup=reply_markup ) # Tell ConversationHandler that we're in state `FIRST` now return FIRST def start_over(update, context): """Prompt same text & keyboard as `start` does but not as new message""" # Get CallbackQuery from Update query = update.callback_query # Get Bot from CallbackContext bot = context.bot keyboard = [ [InlineKeyboardButton("1", callback_data=str(ONE)), InlineKeyboardButton("2", callback_data=str(TWO))] ] reply_markup = InlineKeyboardMarkup(keyboard) # Instead of sending a new message, edit the message that # originated the CallbackQuery. This gives the feeling of an # interactive menu. bot.edit_message_text( chat_id=query.message.chat_id, message_id=query.message.message_id, text="Start handler, Choose a route", reply_markup=reply_markup ) return FIRST def one(update, context): """Show new choice of buttons""" query = update.callback_query bot = context.bot keyboard = [ [InlineKeyboardButton("3", callback_data=str(THREE)), InlineKeyboardButton("4", callback_data=str(FOUR))] ] reply_markup = InlineKeyboardMarkup(keyboard) bot.edit_message_text( chat_id=query.message.chat_id, message_id=query.message.message_id, text="First CallbackQueryHandler, Choose a route", reply_markup=reply_markup ) return FIRST def two(update, context): """Show new choice of buttons""" query = update.callback_query bot = context.bot keyboard = [ [InlineKeyboardButton("1", callback_data=str(ONE)), InlineKeyboardButton("3", callback_data=str(THREE))] ] reply_markup = InlineKeyboardMarkup(keyboard) bot.edit_message_text( chat_id=query.message.chat_id, message_id=query.message.message_id, text="Second CallbackQueryHandler, Choose a route", reply_markup=reply_markup ) return FIRST def three(update, context): """Show new choice of buttons""" query = update.callback_query bot = context.bot keyboard = [ [InlineKeyboardButton("Yes, let's do it again!", callback_data=str(ONE)), InlineKeyboardButton("Nah, I've had enough ...", callback_data=str(TWO))] ] reply_markup = InlineKeyboardMarkup(keyboard) bot.edit_message_text( chat_id=query.message.chat_id, message_id=query.message.message_id, text="Third CallbackQueryHandler. Do want to start over?", reply_markup=reply_markup ) # Transfer to conversation state `SECOND` return SECOND def four(update, context): """Show new choice of buttons""" query = update.callback_query bot = context.bot keyboard = [ [InlineKeyboardButton("2", callback_data=str(TWO)), InlineKeyboardButton("4", callback_data=str(FOUR))] ] reply_markup = InlineKeyboardMarkup(keyboard) bot.edit_message_text( chat_id=query.message.chat_id, message_id=query.message.message_id, text="Fourth CallbackQueryHandler, Choose a route", reply_markup=reply_markup ) return FIRST def end(update, context): """Returns `ConversationHandler.END`, which tells the ConversationHandler that the conversation is over""" query = update.callback_query bot = context.bot bot.edit_message_text( chat_id=query.message.chat_id, message_id=query.message.message_id, text="See you next time!" ) return ConversationHandler.END def error(update, context): """Log Errors caused by Updates.""" logger.warning('Update "%s" caused error "%s"', update, context.error) def main(): # Create the Updater and pass it your bot's token. updater = Updater("TOKEN", use_context=True) # Get the dispatcher to register handlers dp = updater.dispatcher # Setup conversation handler with the states FIRST and SECOND # Use the pattern parameter to pass CallbackQueries with specific # data pattern to the corresponding handlers. # ^ means "start of line/string" # $ means "end of line/string" # So ^ABC$ will only allow 'ABC' conv_handler = ConversationHandler( entry_points=[CommandHandler('start', start)], states={ FIRST: [CallbackQueryHandler(one, pattern='^' + str(ONE) + '$'), CallbackQueryHandler(two, pattern='^' + str(TWO) + '$'), CallbackQueryHandler(three, pattern='^' + str(THREE) + '$'), CallbackQueryHandler(four, pattern='^' + str(FOUR) + '$')], SECOND: [CallbackQueryHandler(start_over, pattern='^' + str(ONE) + '$'), CallbackQueryHandler(end, pattern='^' + str(TWO) + '$')] }, fallbacks=[CommandHandler('start', start)] ) # Add ConversationHandler to dispatcher that will be used for handling # updates dp.add_handler(conv_handler) # log all errors dp.add_error_handler(error) # Start the Bot updater.start_polling() # Run the bot until you press Ctrl-C or the process receives SIGINT, # SIGTERM or SIGABRT. This should be used most of the time, since # start_polling() is non-blocking and will stop the bot gracefully. updater.idle() if __name__ == '__main__': main()