How to fix AttributeError: 'NoneType' object has no attribute 'to_dict'?

Question

Python

Hello. The problem is this:

elif call.data == "1":
        keyboard = types.InlineKeyboardMarkup()
        rele5 = types.InlineKeyboardButton(text="Оформить", callback_data="e")
        backbutton = types.InlineKeyboardButton(text="back", callback_data="mainmenu")
        keyboard.add(rele5, backbutton)
        bot.edit_message_text(chat_id=call.message.chat.id, message_id=call.message.message_id,
                              text="Купить:",
                              reply_markup=keyboard)
    elif call.data == "e":
        keyboard = types.InlineKeyboardMarkup()
        rele1 = types.InlineKeyboarButton(text="Ввести имя пользователя", callback_data="6")
        backbutton = types.InlineKeyboardButton(text="back", callback_data="mainmenu")
        keyboard.add(rele1, backbutton)
        bot.edit_message_text(chat_id=call.message.chat.id, message_id=call.message.message_id,
                              text="Введите имя пользователя :",
                              reply_markup=keyboard)

Throws an error:
AttributeError: 'NoneType' object has no attribute 'to_dict'

Answer 1

We go into the translator and drive in the error there. At the output we get:

AttributeError: 'NoneType' object has no attribute 'to_dict'.

That is, you are trying to call the "Nothing" function to_dict.
And this is not the complete code, and the error log.

Answer 2

And how did your code, in principle, start up and reach line 56, if it throws an error here?
rele1 = types.InlineKeyboarButton(text="Enter username", callback_data="6")
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