Button does not call function correctly

Question

from tkinter import *

class Application:

      def __init__(self, master=None):
          self.inicio = Frame(master)
          self.inicio.pack()
          self.msg = Label(self.inicio, text="Deseja exprimentar a versao input?")
          self.msg["font"] = ("Calibri", "9", "italic")
          self.msg.pack ()
          self.sim = Button(self.inicio)
          self.sim["text"] = "sim"
          self.sim["font"] = ("Calibri", "9")
          self.sim["width"] = 10
          self.sim.bind("<Button-1>", self.Verificar)
          self.sim.pack ()
          self.nao = Button(self.inicio)
          self.nao["text"] = "nao"
          self.nao["font"] = ("Calibri", "9")
          self.nao["width"] = 10
          self.nao.bind("<Button-2>", self.Verificar)
          self.nao.pack ()

      def Verificar(self, event):
          if self.msg["text"] == "Deseja exprimentar a versao input?":
              self.msg["text"] = "Bem vindo a versao de input"

          else:
              self.msg['text']='Deseja exprimentar a versao input?'

root = Tk()

Application(root)

root.mainloop()

Can someone explain to me how to do when to click the 'Welcome to output version' message'?

Answer 1

In this passage:

self.nao.bind("<Button-2>", self.Verificar)

<Button-2> refers to the middle mouse button (try your program as is by clicking the middle mouse button).

Without touching your program too much, I would add a new function:

  def Verificar(self, event): # removi o else dessa
          self.msg["text"] = "Bem vindo a versao de input"
  def Verificar2(self, event): # função nova
          self.msg["text"] = "Bem vindo a versao de output"

And change the button code nao for <Button-1> also:

self.nao.bind("<Button-1>", self.Verificar2)

This should do what you want, using the correct buttons... :)