Пагинация для телеграмм бота

 from telegram import InlineKeyboardButton, InlineKeyboardMarkup, Update 
from telegram.ext import Updater, CommandHandler, CallbackQueryHandler, CallbackContext 
import logging 
 
# Замени на свой токен бота 
TOKEN = "YOUR_BOT_TOKEN" 
 
# Наш пример данных 
DATA = [f"Item {i}" for i in range(1, 31)] 
ITEMS_PER_PAGE = 5 
 
logging.basicConfig( 
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s', level=logging.INFO 
) 
logger = logging.getLogger(__name__) 
 
def get_page(page_num: int, data: list, items_per_page: int): 
    start = (page_num - 1) * items_per_page 
    end = start + items_per_page 
    return data[start:end] 
 
def create_pagination_keyboard(page_num: int, total_pages: int): 
    buttons = [] 
 
    if page_num > 1: 
        buttons.append(InlineKeyboardButton("⬅️ Назад", callback_data=f"page_{page_num - 1}")) 
     
    if page_num < total_pages: 
        buttons.append(InlineKeyboardButton("Вперед ➡️", callback_data=f"page_{page_num + 1}")) 
     
    return InlineKeyboardMarkup([buttons]) 
 
def start(update: Update, context: CallbackContext): 
    page_num = 1 
    total_pages = (len(DATA) + ITEMS_PER_PAGE - 1) // ITEMS_PER_PAGE  # Вычисление общего числа страниц 
    current_page_items = get_page(page_num, DATA, ITEMS_PER_PAGE) 
 
    message = f"Страница {page_num}/{total_pages}:\n" + "\n".join(current_page_items) 
     
    keyboard = create_pagination_keyboard(page_num, total_pages) 
    update.message.reply_text(message, reply_markup=keyboard) 
 
 
def handle_pagination(update: Update, context: CallbackContext): 
    query = update.callback_query 
    query.answer()  # Чтобы убрать индикатор загрузки 
 
    page_num = int(query.data.split("_")[1]) 
    total_pages = (len(DATA) + ITEMS_PER_PAGE - 1) // ITEMS_PER_PAGE  # Вычисление общего числа страниц 
    current_page_items = get_page(page_num, DATA, ITEMS_PER_PAGE) 
 
    message = f"Страница {page_num}/{total_pages}:\n" + "\n".join(current_page_items) 
    keyboard = create_pagination_keyboard(page_num, total_pages) 
    query.edit_message_text(text=message, reply_markup=keyboard) 
 
 
def main(): 
    updater = Updater(TOKEN) 
 
    dp = updater.dispatcher 
    dp.add_handler(CommandHandler("start", start)) 
    dp.add_handler(CallbackQueryHandler(handle_pagination, pattern='^page_')) 
 
    updater.start_polling() 
    updater.idle() 
 
if __name__ == "__main__": 
    main()