I need that when reaching seven characters, the two widgets below change their state to active. The code runs fine, but when I type the seven characters below, they don't fire. Who can correct me, thanks.
marco_ticket = customtkinter.CTk()
marco_ticket.geometry(f"{600}x{300}")
marco_ticket.title("Control de Pesajes Baelca")
#Función validar placa
def validar_placa():
texto=entry_placa.get()
if len(texto) >=7:
entrada.configure(State="normal")
entrada2.configure(state="normal")
else:
pass
label_placa=customtkinter.CTkLabel(marco_ticket, text="Placa :", text_font=("arial", 16))
label_placa.grid(column=0, row=0, pady=5, padx=5)
entry_placa=customtkinter.CTkEntry(marco_ticket)
entry_placa.grid(column=1, row=0, pady=5, padx=50)
entrada=customtkinter.CTkComboBox(marco_ticket, values=["Lleno", "Vacio", "Pesada múltiple"], state="disabled")
entrada.grid(column=0, row=1, pady=5, padx=5)
entrada.set("Lleno")
entrada2=customtkinter.CTkEntry(marco_ticket, state="disabled")
entrada2.grid(column=0, row=2, pady=5, padx=5)
validar_placa()
marco_ticket.mainloop()