Pet Nation | Python Fiddle

def start():
	print("Type 'begin' when you are ready to start.")
    begin;
    while begin != "begin":
        begin=input("")
    print "OK. Let's get started!"
    username=input("What will your username be?  ")
    password=input("... and password?  ")
    print"Great you're all set! Now to the game!"
 	game(username,password)
def game(user,pwd):
    coins=100
    print("Welcome "+user+"!")
	print("You have just moved into a new house and are starting a new life, now there is only one thing left to do...")
   	print("GET A PET!!!!!!")
    pet_type=input("You have 100 coins. Would you like a cat for 17 coins, a dog for 17 coins, a fish for 10 coins, or a parrot for 13 coins?").lower()
    if pet_type == "cat":
    	coins-=17
        catverse(user,pwd,coins)
    elif pet_type == "dog":
        cons-=17
        dogverse(user,pwd,coins)
def catverse(user,pwd,coins):
    print"CATS"
    print user+","+pwd+","+str(coins)
def dogverse(user,pwd,coins):
    print"DOGS"
    print user+","+pwd+","+str(coins)

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