Get User Input after keyboard inline keyboard selection Telegram Bot Python

Question

I have an issue with my telegram bot. I wrote a bot in which the user needs to make a choice with an Inline Keyboard. If he selects 'Cerca un prodotto' the bot should wait for user input and print it. But if I start the bot then it prints the text 'FU' in update.message.reply_text('HELLO FU', reply_markup=reply_markup_main) row instead of printing user input. This is my code:

from telegram.ext import Updater, CommandHandler, MessageHandler, Filters
from telegram.ext import CommandHandler, CallbackQueryHandler, CallbackContext
from telegram import InlineKeyboardButton, InlineKeyboardMarkup, ReplyKeyboardMarkup
from telegram import Update
import telegram

def start(update, context):
    kb_main = [
        [InlineKeyboardButton("Cerca le migliori offerte", callback_data='trovaofferte')],
        [InlineKeyboardButton("Cerca un prodotto", callback_data='cercaprod')]
    ]

    reply_markup_main = InlineKeyboardMarkup(kb_main)
    update.message.reply_text('HELLO FU', reply_markup=reply_markup_main)

def kb(update: Update, _: CallbackContext) -> None:
    query = update.callback_query
    query.answer()

    #===> IF USER CHOICE IS 'cercaprod' THEN BOT SHOULD WAIT FOR USER INPUT<====
    if query.data == 'cercaprod':
        print(query.message.text)

def main():
   update= Updater('1655760090:AAFKyOR-i7wLW1zIAH9-air0EtqIDQJrCwk', use_context=True)
   disp=update.dispatcher

   disp.add_handler(CommandHandler("start", start))
   disp.add_handler(MessageHandler(Filters.text & ~Filters.command, kb))
   update.dispatcher.add_handler(CallbackQueryHandler(kb))
   update.start_polling()
   update.idle()

if __name__=='__main__':
   main()

Answer 1

A have a few remarks:

• You should revoke your bot token with @Botfather. Otherwise anyone could use it, because you posted it
• you use the callback kb in both a MessageHandler and a CallbackQueryHandler, but call update.callback_query.answer(). However, if the update is a message (in the MessageHandler case, update.callback_query will be None and you'll get an exception.

Now to the actual problem:

When the button is pressed, the only update you get is the CallbackQuery and query.message is the message that the button is attached to - in your case the message with text HELLO FU. If you want the user to enter some text after pressing the button, that will come in a new update. So you'd have to use a MessageHandler to catch that. I guess that's what you tried by setting up a MessageHandler with kb as callback, but as mentioned above that will only raise an error, which you currently won't see because you have no logging set up and no error handler.

For this kind of setup, I strongly recommend to use ConversationHandler, which is perfect for setups where multiple user inputs are needed. There's also a neat example here.