A very simple and sometimes mean bot for telegram based on chatterbot.

wittgenstein.py

import requests
from flask import Flask, request

from chatterbot import ChatBot


app = Flask(__name__)

TOKEN = "PUT YOUR TOKEN STRING HERE"

# cites = open('zitate.txt').read().split('\n')

wittgenstein = ChatBot('Wittgenstein', database="wittgenstein.db")


@app.route("/")
def hello():
    return "Hello from Wittgenstein!"


@app.route("/", methods=['POST'])
def webhook():
    print request.json

    msg = request.json.get('message')
    if msg and msg.get('text'):
        text = msg['text']
        user = msg.get('from') and msg.get('from').get('first_name')

        response = None
        if text.lower().find("wittgenstein") != -1 and \
           text.lower().find("hallo") != -1:
            response = "Hello from the Underworld, you sucker!"
        elif user == 'Sarah':
            response = 'Isso.'
        else:
            if text.lower().find("wittgenstein") != -1 or \
                    (msg.get("chat") and msg['chat'].get('username')):
                response = wittgenstein.get_response(
                    text.replace(
                        'wittgenstein', '').replace(
                        'Wittgenstein', ''), user_name=user)
            else:
                wittgenstein.get_response(text, user_name=user)

        if response:
            print "Sending response"
            message = {
                'chat_id': request.json['message']['chat']['id'],
                'reply_to_message': request.json['message']['message_id'],
                'text': response
            }
            requests.post(
                'https://api.telegram.org/bot' + TOKEN + '/sendMessage',
                data=message)

    return 'ok'


if __name__ == "__main__":
    app.debug = True
    app.run(port=9768)