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persistentconversationbot.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Simple Bot to reply to Telegram messages
# This program is dedicated to the public domain under the CC0 license.
"""
This Bot uses the Updater class to handle the bot.
First, a few callback functions are defined. 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-user conversation using ConversationHandler.
Send /start to initiate the conversation.
Press Ctrl-C on the command line or send a signal to the process to stop the
bot.
"""
from telegram import ReplyKeyboardMarkup
from telegram.ext import (Updater, CommandHandler, MessageHandler, Filters, RegexHandler,
ConversationHandler, PicklePersistence)
import logging
# Enable logging
logging.basicConfig(format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
level=logging.INFO)
logger = logging.getLogger(__name__)
CHOOSING, TYPING_REPLY, TYPING_CHOICE = range(3)
reply_keyboard = [['Age', 'Favourite colour'],
['Number of siblings', 'Something else...'],
['Done']]
markup = ReplyKeyboardMarkup(reply_keyboard, one_time_keyboard=True)
def facts_to_str(user_data):
facts = list()
for key, value in user_data.items():
facts.append('{} - {}'.format(key, value))
return "\n".join(facts).join(['\n', '\n'])
def start(bot, update, user_data):
reply_text = "Hi! My name is Doctor Botter."
if user_data:
reply_text += " You already told me your {}. Why don't you tell me something more " \
"about yourself? Or change enything I " \
"already know.".format(", ".join(user_data.keys()))
else:
reply_text += " I will hold a more complex conversation with you. Why don't you tell me " \
"something about yourself?"
update.message.reply_text(reply_text, reply_markup=markup)
return CHOOSING
def regular_choice(bot, update, user_data):
text = update.message.text
user_data['choice'] = text
if user_data.get(text):
reply_text = 'Your {}, I already know the following ' \
'about that: {}'.format(text.lower(), user_data[text.lower()])
else:
reply_text = 'Your {}? Yes, I would love to hear about that!'.format(text.lower())
update.message.reply_text(reply_text)
return TYPING_REPLY
def custom_choice(bot, update):
update.message.reply_text('Alright, please send me the category first, '
'for example "Most impressive skill"')
return TYPING_CHOICE
def received_information(bot, update, user_data):
text = update.message.text
category = user_data['choice']
user_data[category] = text.lower()
del user_data['choice']
update.message.reply_text("Neat! Just so you know, this is what you already told me:"
"{}"
"You can tell me more, or change your opinion on "
"something.".format(facts_to_str(user_data)), reply_markup=markup)
return CHOOSING
def show_data(bot, update, user_data):
update.message.reply_text("This is what you already told me:"
"{}".format(facts_to_str(user_data)))
def done(bot, update, user_data):
if 'choice' in user_data:
del user_data['choice']
update.message.reply_text("I learned these facts about you:"
"{}"
"Until next time!".format(facts_to_str(user_data)))
return ConversationHandler.END
def error(bot, update, error):
"""Log Errors caused by Updates."""
logger.warning('Update "%s" caused error "%s"', update, error)
def main():
# Create the Updater and pass it your bot's token.
pp = PicklePersistence(filename='conversationbot')
updater = Updater("TOKEN", persistence=pp)
# Get the dispatcher to register handlers
dp = updater.dispatcher
# Add conversation handler with the states CHOOSING, TYPING_CHOICE and TYPING_REPLY
conv_handler = ConversationHandler(
entry_points=[CommandHandler('start', start, pass_user_data=True)],
states={
CHOOSING: [RegexHandler('^(Age|Favourite colour|Number of siblings)$',
regular_choice,
pass_user_data=True),
RegexHandler('^Something else...$',
custom_choice),
],
TYPING_CHOICE: [MessageHandler(Filters.text,
regular_choice,
pass_user_data=True),
],
TYPING_REPLY: [MessageHandler(Filters.text,
received_information,
pass_user_data=True),
],
},
fallbacks=[RegexHandler('^Done$', done, pass_user_data=True)],
name="my_conversation",
persistent=True
)
dp.add_handler(conv_handler)
show_data_handler = CommandHandler('show_data', show_data, pass_user_data=True)
dp.add_handler(show_data_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()