Пайтон ткинтер bind

 import tkinter as tk 
 
def increase_font(event): 
    current_font_size = text.cget("font").split(" ")[-1] 
    new_font_size = int(current_font_size) + 2 
    text.config(font=("Arial", new_font_size)) 
 
def decrease_font(event): 
    current_font_size = text.cget("font").split(" ")[-1] 
    new_font_size = int(current_font_size) - 2 
    text.config(font=("Arial", new_font_size)) 
 
root = tk.Tk() 
 
text = tk.Text(root, font=("Arial", 10)) 
text.pack() 
 
root.bind("<Control-plus>", increase_font) 
root.bind("<Control-minus>", decrease_font) 
 
root.mainloop()