# 8.3. Esempi

```## This program runs a test of knowledge

true = 1
false = 0

# First get the test questions
# Later this will be modified to use file io.
def get_questions():
# notice how the data is stored as a list of lists
return [["What color is the daytime sky on a clear day?","blue"],\
["What is the answer to life, the universe and everything?","42"],\
["What is a three letter word for mouse trap?","cat"]]

# This will test a single question
# it takes a single question in
# it returns true if the user typed the correct answer, otherwise false
#extract the question and the answer from the list
# give the question to the user
print "Correct"
return true
else:
return false

# This will run through all the questions
def run_test(questions):
if len(questions) == 0:
print "No questions were given."
# the return exits the function
return
index = 0
right = 0
while index < len(questions):
#Check the question
if check_question(questions[index]):
right = right + 1
#go to the next question
index = index + 1
#notice the order of the computation, first multiply, then divide
print "You got ",right*100/len(questions),"% right out of",len(questions)

#now lets run the questions
run_test(get_questions())```
Output:
```What color is the daytime sky on a clear day?green
Incorrect, correct was: blue
What is the answer to life, the universe and everything?42
Correct
What is a three letter word for mouse trap?cat
Correct
You got  66 % right out of 3```