fibonacci recursive

fib.py

def fibonacci(n):
    if n == 0:
        print "finobacci(0) = 0"
        return 0
    elif n == 1:
        print "finobacci(1) = 1"
        return 1
    else:
        print "fibonacci(%s) = fibonacci(%s) + fibonacci(%s)" % (n, n-1, n-2)
        return fibonacci(n-1) + fibonacci(n-2)

user_input = int(raw_input("Please enter a non-negative integer here:"))

while user_input >= 0:
    print fibonacci(user_input)
    user_input = int(raw_input("Please enter a non-negative integer here:"))