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use some subclassing because why not

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by Profile picture of Benjamin PollackBenjamin Pollack

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Change 1 of 4 Show Entire File brain.py Stacked
 
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@@ -14,7 +14,31 @@
  else:   print 'Please type "yes" or "no"'   -class Determiner(object): +class Question(object): + """abstract class for thing that can be asked""" + + def is_possible_answer(self): + """return whether I'm a final answer (e.g., a thing, person, etc.)""" + raise NotImplementedError + + def question(self): + """returns the question that I represent""" + raise NotImplementedError + + def ask(self): + """asks the question on the command line + + You can use Determiner.question() to grab the question text, + and manually call Questioner.advance_yes() or + Questioner.advance_no based on the answer, if you want to + ask users questions in some other way (see twivy.py) + """ + if ask(self.question()): + self.questioner.advance_yes() + else: + self.questioner.advance_no() + +class Determiner(Question):   """represents a question that helps us narrow down possible answers     Determiners need to know about their questioner, so they can let @@ -22,6 +46,7 @@
  true_question and a false_question property that stores the next   thing to ask if the user says yes/no, respectively.   """ +   def __init__(self, questioner, question, true_question, false_question):   self.questioner = questioner   self._question = question @@ -29,27 +54,13 @@
  self.false_question = false_question     def question(self): - """returns the question as a string"""   return self._question   - def ask(self): - """asks the user on the command line - - You can use Determiner.question() to grab the question text, - and manually call Questioner.advance_yes() or - Questioner.advance_no(), if you want to ask users questions in - other ways. This is here just for convenience. - """ - if ask(self.question()): - self.questioner.advance_yes() - else: - self.questioner.advance_no() -   def is_possible_answer(self):   False     -class Thing(object): +class Thing(Question):   """represents a concrete thing that might be the right answer     For example, valid Things might be "a dog", "a cat", "Apollo 11", @@ -60,26 +71,8 @@
  self.what = what     def question(self): - """returns the question as a string - - This nicely formats things for you in the form of a question - so you don't have to. - """   return 'Are you thinking of %s?' % self.what   - def ask(self): - """asks the user on the command line - - You can use Determiner.question() to grab the question text, - and manually call Questioner.advance_yes() or - Questioner.advance_no(), if you want to ask users - questions in other ways. This is here just for convenience. - """ - if ask(self.question()): - self.questioner.advance_yes() - else: - self.questioner.advance_no() -   def is_possible_answer(self):   return True