Code Snippet

#-------------------------------------------------------------------------------
# Name:       Maths Quiz
# Purpose:    Tutoral
# Author:     teachingcomputing.com
# Created:     23/02/2016
# Copyright:   (c) teachingcomputing.com 2016

#-------------------------------------------------------------------------------

""" File Structure
scores.txt
===========
user1,1
user2,3
user3,1

"""
def quiz():
   import random

   #identifying the variables we will be using
   score=0
   answer=0
   operators=("x", "+", "-")
   #Add a variable for valid_name set to Boolean value 'false' by default
   valid_name=False
   #Add a variable to be used in validation of the name (not to include numbers)
   found_number=False
   numbers="123456789"

   #Ask for name
   #While valid_name is false...then ask the user for their name
   while valid_name==False:
      #the variable found_number needs to be initialised to FALSE at the start of the loop
      found_number=False
      name=input("Hi there, what is your name?: ")

   #for every character in the name entered
      for i in name:
      #...and for every character in name (i) that is equal to a number in numbers
         for u in numbers:
            if i==u:
               found_number=True

      if found_number==True:
            valid_name=False
            print("Invalid Name - Try again, without any numbers")
            
      elif found_number==False:
            valid_name=True
            break

   print("Great...let's start the quiz")
   print("*********************************************")

   #Randomly generate the numbers and operators we will be using in this Maths Quiz
   #Let's say we only need to ask 5 questions
   #The For in in range loop will tell us how many times to repeat the program

   for i in range(3):
       #variable num is equal to a random number between 5 and 10
       num1=random.randint(5,10)
       #this will generate a random number between 1 and 5
       num2=random.randint(1,5)
       #select an operator of choice
       operator=random.choice(operators)

   #Now we need to calculate the answer! For that, we need to know which operator is being used
       if operator=="+":
            answer=num1+num2
       elif operator=="-":
           answer=num1-num2
       elif operator=="x":
           answer=num1*num2

   #Creating the question (randomlly generated) and create user's input
   #remember the lines to follow should be indented to be IN the above for loop
       print('What is ' + str(num1)+operator+str(num2))
       user_answer=int(input("Enter Answer: "))

   #This section allows for the user's response
       if user_answer==answer:
           print("That's Right")
           #increment (add 1) to the score if it is right
           score=score+1
       else:
               print("Not quite, sorry! The answer was: " + str(answer))
               score=score
   print("Well done:>" + name + "...Your Score was: " + str(score))
                    

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