Python - Quiz (reddit.com/u/learnpython)

#
# https://www.reddit.com/r/learnpython/comments/4zosbr/an_example_for_beginners_to_use/
# http://pastebin.com/6gZEgVi2
#

import random
import time

# questions and answers list :

data = [
    ("Does int(x) make x into an integer?", "yes"),
    ("Is Polkagrisen087 a good streamer?", "yes"),
    ("Is Justin Bieber a singer?", "yes"),
    ("Is Alexander Gay?", "no"),  # Are you sure ?
]


class QuestionAsker():

    def __init__(self):
            self.answers = 0

            self.display_help()
            self.run()

    def display_help(self):

            print
            print "=== The Quiz ==="
            print
            print "If invalid, scrip crashes"
            print
            print "Acceptable strings:"
            print " yes"
            print " no"
            print " c - show result"
            print " h - display this help"
            print

    def select_question(self):
        self.question, self.answer = random.choice(data)

    def run(self):

        self.select_question()

        while True:
            user_in = raw_input(self.question).strip().lower()

            if user_in == "c":
                print "Answers:", self.answers
            if user_in == "h":
                self.display_help()
            elif user_in == self.answer:
                print "that is correct!"
                self.answers += 1
                self.select_question()
            else:
                print "Wrong answer, you are not allowed to play my quiz"
                time.sleep(1)
                #raise TypeError("Invalid input") # Crashing the script.
                return # exit funtion (and end script)

if __name__ == "__main__":
    QuestionAsker()