pyTkinterQuestionnaire-non-OOP

from tkinter import *

window = Tk()
window.title('Questionnaire')
window.geometry('400x200')

questions = [
    (),
    ("Question 1: Do you like Python?", 2, 3),
    ("Question 2: Do you prefer cats over dogs?", 3, 4),
    ("Question 3: Are you a morning person?", 5, 7),
    ("Question 4: Do you enjoy reading books?", 6, 9),
    ("Question 5: Is pizza your favorite food?", 8, 9),
    ("Question 6: Do you like traveling?", 9, 10),
    ("Question 7: Are you interested in learning new languages?", 5, 10),
    ("Question 8: Do you enjoy outdoor activities?", 6, 10),
    ("Question 9: Are you a fan of superhero movies?", 4, 10),
    ("Question 10: Do you like solving puzzles?", 0, 0)
]

question_index = 1
yesnum = 0
nonum = 0

def go():
    global question_index, yesnum, nonum, question_label

    data = questions[question_index]
    quest = data[0]
    yesnum = data[1]
    nonum = data[2]
    question_label = Label(window, text=quest)  # text=self.questions[self.current_question_index])
    question_label.pack()

    yes_button = Button(window, text="YES", command=next_yes)
    yes_button.pack(side=LEFT, padx=10)

    no_button = Button(window, text="NO", command=next_no)
    no_button.pack(side=RIGHT, padx=10)

def next():
    global question_index, yesnum, nonum, question_label
    if question_index == 0:
        question_label.config(text="Questionnaire completed.")
    else:
        data = questions[question_index]
        quest = data[0]
        yesnum = data[1]
        nonum = data[2]
        question_label.config(text=quest)


def next_yes():
    global question_index, yesnum
    question_index = yesnum

    next()

def next_no():
    global question_index, nonum
    question_index = nonum

    next()

go()
mainloop()