Код: Выделить всё
def choose_option(self):
if self.option_picker.currentRow() == 0:
description = open(":/description_files/program_description.txt","r")
self.information_shower.setText(description.read())
elif self.option_picker.currentRow() == 1:
requirements = open(":/description_files/requirements_for_client_data.txt", "r")
self.information_shower.setText(requirements.read())
elif self.option_picker.currentRow() == 2:
menus = open(":/description_files/menus.txt", "r")
self.information_shower.setText(menus.read())
Подробнее здесь: https://stackoverflow.com/questions/255 ... -in-python