Button not defined, why?

[Windspar]

Let see if this clear it up

import tkinter as tk

def create_buttons():
    buttons_name = ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', 'ten']
    buttons = []
    
    for name in buttons_name:
        buttons.append(tk.Button(text=name))
        
    return buttons
    
def main():
    buttons = create_buttons()
    for button in buttons:
        print(button['text'])
    print('')
    print('button 3:', buttons[3]['text']) # four will be the answer