gab.append(line.split()[0][-1])
        gab_ofc.close()

        for i in range(0, 20):
            if gab[i] == gabarito_aluno[i].text.lower():
                nota += 1
            else:
                erradas.append(i + 1)
        gabarito_aluno = []

        sm.switch_to(sm.screen_1)


sm = ScreenManager(transition=FadeTransition())
sm.screen_1 = (Header(name='main'))
sm.screen_2 = Aluno(name='aluno')
sm.add_widget(sm.screen_1)
sm.add_widget(sm.screen_2)


class Gabarito(App):
    def build(self):
        global nota
        global erradas
        page = sm
        return page


if __name__ == '__main__':
    a = Gabarito()
    a.run()