quizzer/ui/cli.py

   1 from . import UserInterface
   2
   3
   4 class CommandLineInterface (UserInterface):
   5     def run(self):
   6         while True:
   7             question = self.get_question()
   8             if not question:
   9                 break
  10             print(question.prompt)
  11             while True:
  12                 try:
  13                     answer = input('? ')
  14                 except EOFError:
  15                     answer = 'quit'
  16                 a = answer.strip().lower()
  17                 if a in ['q', 'quit']:
  18                     print()
  19                     return
  20                 if a in ['?', 'help']:
  21                     print()
  22                     print(question.prompt)
  23                     print(question.hint)
  24                     continue
  25                 break
  26             correct = self.process_answer(question=question, answer=answer)
  27             if correct:
  28                 print('correct\n')
  29             else:
  30                 print('incorrect\n')
  31
  32     def display_results(self):
  33         print('results:')
  34         for question in self.quiz:
  35             for answer in self.answers.get(question.id, []):
  36                 self.display_result(question=question, answer=answer)
  37         self.display_totals()
  38
  39     def display_result(self, question, answer):
  40         if answer['correct']:
  41             correct = 'correct'
  42         else:
  43             correct = 'incorrect'
  44         print('question:     {}'.format(question.prompt))
  45         print('you answered: {}'.format(answer['answer']))
  46         print('which was:    {}'.format(correct))
  47         print()
  48
  49     def display_totals(self):
  50         answered = self.answers.get_answered(questions=self.quiz)
  51         correctly_answered = self.answers.get_correctly_answered(
  52             questions=self.quiz)
  53         la = len(answered)
  54         lc = len(correctly_answered)
  55         print('answered {} of {} questions'.format(la, len(self.quiz)))
  56         print(('of the answered questions, {} ({:.2f}) were answered correctly'
  57                ).format(lc, float(lc)/la))