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                 answer = input('? ')
  13                 a = answer.strip().lower()
  14                 if a in ['q', 'quit']:
  15                     print()
  16                     return
  17                 if a in ['?', 'help']:
  18                     print()
  19                     print(question.prompt)
  20                     print(question.hint)
  21                     continue
  22                 break
  23             correct = self.process_answer(question=question, answer=answer)
  24             if correct:
  25                 print('correct\n')
  26             else:
  27                 print('incorrect\n')
  28
  29     def display_results(self):
  30         print('results:')
  31         for question in self.quiz:
  32             for answer in self.answers.get(question.id, []):
  33                 self.display_result(question=question, answer=answer)
  34         self.display_totals()
  35
  36     def display_result(self, question, answer):
  37         if answer['correct']:
  38             correct = 'correct'
  39         else:
  40             correct = 'incorrect'
  41         print('question:     {}'.format(question.prompt))
  42         print('you answered: {}'.format(answer['answer']))
  43         print('which was:    {}'.format(correct))
  44         print()
  45
  46     def display_totals(self):
  47         answered = self.answers.get_answered(questions=self.quiz)
  48         correctly_answered = self.answers.get_correctly_answered(
  49             questions=self.quiz)
  50         la = len(answered)
  51         lc = len(correctly_answered)
  52         print('answered {} of {} questions'.format(la, len(self.quiz)))
  53         print(('of the answered questions, {} ({:.2f}) were answered correctly'
  54                ).format(lc, float(lc)/la))