mirror of
https://github.com/python-telegram-bot/python-telegram-bot.git
synced 2024-11-21 22:56:38 +01:00
125 lines
4.5 KiB
Python
125 lines
4.5 KiB
Python
#!/usr/bin/env python
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# pylint: disable=unused-argument, wrong-import-position
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# This program is dedicated to the public domain under the CC0 license.
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"""This example showcases how PTBs "arbitrary callback data" feature can be used.
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For detailed info on arbitrary callback data, see the wiki page at
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https://github.com/python-telegram-bot/python-telegram-bot/wiki/Arbitrary-callback_data
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"""
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import logging
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from typing import List, Tuple, cast
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from telegram import __version__ as TG_VER
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try:
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from telegram import __version_info__
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except ImportError:
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__version_info__ = (0, 0, 0, 0, 0) # type: ignore[assignment]
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if __version_info__ < (20, 0, 0, "alpha", 1):
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raise RuntimeError(
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f"This example is not compatible with your current PTB version {TG_VER}. To view the "
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f"{TG_VER} version of this example, "
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f"visit https://docs.python-telegram-bot.org/en/v{TG_VER}/examples.html"
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)
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from telegram import InlineKeyboardButton, InlineKeyboardMarkup, Update
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from telegram.ext import (
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Application,
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CallbackQueryHandler,
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CommandHandler,
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ContextTypes,
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InvalidCallbackData,
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PicklePersistence,
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)
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# Enable logging
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logging.basicConfig(
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format="%(asctime)s - %(name)s - %(levelname)s - %(message)s", level=logging.INFO
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)
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logger = logging.getLogger(__name__)
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async def start(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
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"""Sends a message with 5 inline buttons attached."""
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number_list: List[int] = []
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await update.message.reply_text("Please choose:", reply_markup=build_keyboard(number_list))
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async def help_command(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
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"""Displays info on how to use the bot."""
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await update.message.reply_text(
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"Use /start to test this bot. Use /clear to clear the stored data so that you can see "
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"what happens, if the button data is not available. "
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)
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async def clear(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
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"""Clears the callback data cache"""
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context.bot.callback_data_cache.clear_callback_data()
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context.bot.callback_data_cache.clear_callback_queries()
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await update.effective_message.reply_text("All clear!")
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def build_keyboard(current_list: List[int]) -> InlineKeyboardMarkup:
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"""Helper function to build the next inline keyboard."""
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return InlineKeyboardMarkup.from_column(
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[InlineKeyboardButton(str(i), callback_data=(i, current_list)) for i in range(1, 6)]
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)
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async def list_button(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
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"""Parses the CallbackQuery and updates the message text."""
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query = update.callback_query
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await query.answer()
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# Get the data from the callback_data.
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# If you're using a type checker like MyPy, you'll have to use typing.cast
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# to make the checker get the expected type of the callback_data
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number, number_list = cast(Tuple[int, List[int]], query.data)
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# append the number to the list
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number_list.append(number)
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await query.edit_message_text(
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text=f"So far you've selected {number_list}. Choose the next item:",
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reply_markup=build_keyboard(number_list),
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)
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# we can delete the data stored for the query, because we've replaced the buttons
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context.drop_callback_data(query)
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async def handle_invalid_button(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
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"""Informs the user that the button is no longer available."""
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await update.callback_query.answer()
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await update.effective_message.edit_text(
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"Sorry, I could not process this button click 😕 Please send /start to get a new keyboard."
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)
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def main() -> None:
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"""Run the bot."""
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# We use persistence to demonstrate how buttons can still work after the bot was restarted
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persistence = PicklePersistence(filepath="arbitrarycallbackdatabot")
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# Create the Application and pass it your bot's token.
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application = (
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Application.builder()
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.token("TOKEN")
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.persistence(persistence)
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.arbitrary_callback_data(True)
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.build()
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)
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application.add_handler(CommandHandler("start", start))
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application.add_handler(CommandHandler("help", help_command))
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application.add_handler(CommandHandler("clear", clear))
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application.add_handler(
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CallbackQueryHandler(handle_invalid_button, pattern=InvalidCallbackData)
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)
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application.add_handler(CallbackQueryHandler(list_button))
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# Run the bot until the user presses Ctrl-C
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application.run_polling()
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if __name__ == "__main__":
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main()
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