telebot state machines register_next_step_handler?

Question

Python

The essence of the question is why the register_next_step_handler function does not end after being called multiple times, but continues to be called with subsequent bot commands.
I give an example in the form of screenshots:

When I call one command many times, it does not complete and starts to duplicate with the following commands


And so it continues with all menu items

Here is the source code that I got

import telebot
import user
import json
from telebot import apihelper
from telebot.types import Message
from telebot import types
bot = telebot.TeleBot(config.token)
apihelper.proxy = {'https': 'xxx'}
def keyboard_menu():
    print("вызов keyboard_menu")
    keyboard_menu = telebot.types.ReplyKeyboardMarkup(True)
    keyboard_menu.row('Город')
    keyboard_menu.row('Способы оплаты')
    return keyboard_menu

def keyboard_sity():
    print("вызов keyboard_sity")
    keyboard_menu = telebot.types.ReplyKeyboardMarkup(True)
    keyboard_menu.row('Главное меню')
    return keyboard_menu

def send_text(message):
    if message.text == 'Город':
        bot.send_message(message.chat.id, 'Выберите город из ниже предоставленных:',reply_markup=keyboard_sity())
        bot.register_next_step_handler(message, sity)
    else:
        bot.send_message(message.chat.id, '*Выберите один из пунктов меню*',parse_mode="Markdown",reply_markup=keyboard_menu())
        bot.register_next_step_handler(message, send_text)
def sity(message):
    if message.text.lower() == 'главное меню':
        bot.send_message(message.chat.id, '*Выберите один из пунктов меню*' ,reply_markup=keyboard_menu() , parse_mode="Markdown")
        bot.register_next_step_handler(message,send_text)
    else:
        bot.send_message(message.chat.id,'такого города не знаем =(')
        bot.register_next_step_handler(message, sity)

@bot.message_handler(commands=['start'])
def start_message(message):
    if message.text == '/start':
        start_bot = f'*Приветствуем {message.chat.username}*\n\n*Выберите один из пунктов меню*'
        bot.send_message(message.chat.id, start_bot ,reply_markup=keyboard_menu(),parse_mode="Markdown")
    
@bot.message_handler(content_types=['text'])
def text(message):
    bot.send_message(message.chat.id,'*Нажмите /start*',reply_markup=telebot.types.ReplyKeyboardRemove(),parse_mode="Markdown")
    bot.register_next_step_handler(message, send_text)


while True:
    try:
        bot.polling(none_stop=True,interval=3)
    except Exception as e:
        print(e)
        time.sleep(15)

Answer 1

I didn't manage to solve the problem myself, but this helped me:

types.ReplyKeyboardMarkup(one_time_keyboard=True,
                                       resize_keyboard=True)

one_time_keyboard=True
The keyboard is immediately removed when the user selects the desired menu item. Due to this, the user will not be able to repeatedly and quickly switch through the menu.

Answer 2

Put the functions in the correct order.

Answer 3

Hey!
I recommend switching to states.
https://github.com/eternnoir/pyTelegramBotAPI/blob...