Vk BOT of lesson (2) | nobody

import vk_api
from vk_api.longpoll import VkLongPoll, VkEventType
from vk_api.keyboard import VkKeyboard, VkKeyboardColor

session = vk_api.VkApi(token="TOKEN")


def send_message(user_id, message, keyboard=None):
    post = {
        "user_id": user_id,
        "message": message,
        "random_id": 0
    }

    if keyboard != None:
        post["keyboard"] = keyboard.get_keyboard()

    session.method("messages.send", post)


for event in VkLongPoll(session).listen():
    if event.type == VkEventType.MESSAGE_NEW and event.to_me:
        text = event.text.lower()
        user_id = event.user_id

        if text == "start":
            keyboard = VkKeyboard()
            keyboard.add_location_button()
            keyboard.add_line()

            buttons = ["blue", "red", "white", "green"]
            button_colors = [VkKeyboardColor.PRIMARY, VkKeyboardColor.NEGATIVE,
                                VkKeyboardColor.DEFAULT, VkKeyboardColor.POSITIVE]

            for btn, btn_color in zip(buttons, button_colors):
                keyboard.add_button(btn, btn_color)

            send_message(user_id, "The first button!", keyboard)

        elif text == "blue":
            send_message(user_id, "BLUE")