Когда я пытаюсь запустить его, он выдает мне ошибку, говоря, что Викторина не определена ?

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"""quiz.py - simple quiz program."""
 

def main():
        """Set up the quiz."""
 
# The questions and answers are in this dictionary.
qs = {"What's the capital of England? ":"London",
"What's the third planet in the Solar System? ":"Earth",
"Who wrote \"Great Expectations\"? ": "Charles Dickens",
"Who sang \"Someone Like You\"? ":"Adele",
"Who is the current Doctor Who? ":"Peter Capaldi",
"Who is the sheriff in \"The Walking Dead\"? ": "Rick Grimes",
"Which metal is liquid at room temperature? ": "Mercury",
"Who plays Katniss in \"The Hunger Games\"? ": "Jennifer Lawrence",
"Which element combines with hydrogen to make water? ": "Oxygen",
"What is the highest mountain in the UK? ": "Ben Nevis"}
 
print("*** Quiz ***\n")
name = input("Please enter your name: ")
print()
print("\nWell done {0}, you scored {1} out of {2}).".format(name, quiz(qs), len(qs)))
 
def quiz(qs):
#Returns a score. Asks questions from qs dictionary.""
score = 0
# Use the .items() method to get the key / value pairs.
	for q,a in qs.items():
		if input(q).lower() == a.lower():
			score += 1
		print("Correct.")
	else:
		print("Sorry, correct answer is \"{}\".".format(a))
	return score
 
	if __name__ == "__main__":
		main()

Что я уже пробовал:

исправлено небольшое количество ошибок таких как блоки отступов и то что я использую python 3.4 может ли кто нибудь дать мне руку пожалуйста

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