gistfile1.py

import random

number_to_guess=0
number_of_guesses=0

def new_game():
    global number_to_guess, number_of_guesses
    user_response=raw_input("Start a new game? Y/N > ")
    if user_response.lower() in ["no","n"]:
        print "Bye!"
        exit()
    elif user_response.lower() in ["yes","y"]:
        level_select= int(raw_input("Enter level 1, 2 or 3."))
        if level_select==1:
            number_to_guess=random.randint(0,100)
        elif level_select==2:
            number_to_guess=random.randint(100,200)
        elif level_select==3:
            number_to_guess=random.randint(200,300)
        number_of_guesses=0

def play():
    global number_to_guess,number_of_guesses
    user_guess=int(raw_input("Enter number> "))
    if user_guess<number_to_guess:
        print "The number I'm thinking of is bigger"
        number_of_guesses+=1
    elif user_guess>number_to_guess:
        print "The number I'm thinking of is smaller"
        number_of_guesses+=1
    elif user_guess==number_to_guess:
        print "That's right!"
        if number_of_guesses<=3:
            print("Great Work! You are a mathematical wizard.")
        elif number_of_guesses>3 and number_of_guesses<=7:
            print("Not too bad! You've got some potential.")
        else:
             print("What took you so long? Maybe you should take some lessons.")
        new_game()
    else:
        print "Invalid input..."

if __name__ == '__main__':
    new_game()
    while True:
        play()