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  1. import tkinter as tk
  2. from functools import partial
  3.  
  4.  
  5. class Botao(tk.Button):
  6.  
  7.     def clique(self, saida, vezes):
  8.         saida['text'] = 'Clicou {} !'.format(vezes)
  9.  
  10.     def contagem(self, saida):
  11.         valor = 0
  12.         def retorna():
  13.             nonlocal valor
  14.             valor += 1
  15.             self.clique(saida, valor)
  16.         return retorna
  17.  
  18.  
  19. class App(object):
  20.  
  21.     def __init__(self):
  22.         self.root = tk.Tk()
  23.         self.fonte = ('Comic Sans MS', 14, 'bold')
  24.         self.frame1 = tk.Frame(self.root)
  25.         self.frame2 = tk.Frame(self.root)
  26.         self.botao1 = Botao(self.frame1, text = 'Clique Aqui !', font = self.fonte)
  27.         self.saida1 = tk.Label(self.frame1, text = 'Ainda não clicou !', fg = 'red', font = self.fonte)
  28.         self.botao1['command'] = self.botao1.contagem(self.saida1)
  29.         self.saida1.pack()
  30.         self.botao1.pack()
  31.         self.botao2 = Botao(self.frame1, text = 'Clique Aqui !', font = self.fonte)
  32.         self.saida2 = tk.Label(self.frame1, text = 'Ainda não clicou !', fg = 'red', font = self.fonte)
  33.         self.botao2['command'] = self.botao2.contagem(self.saida2)
  34.         self.saida2.pack()
  35.         self.botao2.pack()
  36.         self.frame1.pack()
  37.  
  38. app = App()
Runtime error #stdin #stdout #stderr 0.06s 15256KB
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Standard input is empty
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Standard output is empty
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Traceback (most recent call last):
  File "./prog.py", line 38, in <module>
  File "./prog.py", line 22, in __init__
  File "/usr/lib/python3.5/tkinter/__init__.py", line 1880, in __init__
    self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
_tkinter.TclError: no display name and no $DISPLAY environment variable
https://ideone.com/0PW8vR
language:
Python 3 (python  3.9.5)
created:
6 years ago
visibility:
public

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