for selected in answer['closed_part']:
option = get_option(exercise['options'], selected)
toret += '%s: %s\n' % (selected, option['text'])
+ else:
+ toret += u'<nie wybrano odpowiedzi>\n'
toret += u'\nCzesc otwarta (%s):\n\n' % ' '.join(exercise['open_part'])
toret += answer['open_part']