How to pass a list of buttons in the aiogram library to the add function?

Question

Python

@dp.message_handler( filters.CommandStart() )
async def start( message: types.Message ):
    await message.answer(
        'hi', 
        reply_markup = 
            InlineKeyboardMarkup(row_width=1).add(
                [InlineKeyboardButton(text = "Apples", callback_data='1'),
                InlineKeyboardButton(text = "Oranges", callback_data='2'),
                InlineKeyboardButton(text = "Beans", callback_data='3')]
            )
    )

TypeError: aiogram.types.inline_keyboard.InlineKeyboardButton object at 0x000001A3CB035610 is not JSON serializable

Answer 1

You need to unpack your list, or simply pass it there separated by commas.

@dp.message_handler( filters.CommandStart() )
async def start( message: types.Message ):
    await message.answer(
        'hi', 
        reply_markup = 
            InlineKeyboardMarkup(row_width=1).add(
                *[InlineKeyboardButton(text = "Apples", callback_='1'),
                InlineKeyboardButton(text = "Oranges", callback_data='2'),
                InlineKeyboardButton(text = "Beans", callback_data='3')]
            )
    )