Диалоговое окно python

from  tkinter import*
from tkinter import messagebox
import turtle
def square (): 
    turtle.forward(150) 
    turtle.left(90)
    turtle.forward(150) 
    turtle.left(90)
    turtle.forward(150) 
    turtle.left(90)
    turtle.forward(150) 
    turtle.left(90)
    turtle.left(60)
root = Tk()
root.title("Algoritmika")
root.geometry("400x400")
 
def asking():
    question_Number=Label(root,text="Enter number!")
    answer_Number=Entry()
    question_Color=Label(root,text="Enter color!")
    answer_Color=Entry()
    btn= Button(root, text="Answer",command=lambda: start())
    question_Number.grid(row=0)
    answer_Number.grid(row=1)
    question_Color.grid(row=2)
    answer_Color.grid(row=3)
    btn.grid(row=4)
    def start():
        if answer_Color == "Синий":
            turtle.color("pink")
        elif answer_Color=="Зеленый":
            turtle.color("green")
        else:
            turtle.color("black")
        
        e=int(answer_Number.get())
        if 1<=e<=6:
            for number in range(e): 
                square()
            
    
asking()
        
root.mainloop()