How many times would the fib function in Listing 15.2 be invoked for fib(6)? LISTING 15.2 ComputeFibonacci.py 1 def main(): 2 index = eval(input("Enter an index for a Fibonacci number: ")) 3 # Find...

How many times would the fib function in Listing 15.2 be invoked for fib(6)?

LISTING 15.2 ComputeFibonacci.py
1 def main():
2 index = eval(input("Enter an index for a Fibonacci number: "))
3 # Find and display the Fibonacci number
4 print("The Fibonacci number at index", index, "is", )
5
6 # The function for finding the Fibonacci number
7 def :
8 if index == 0: # Base case
9 return 0
10 elif index == 1: # Base case
11 return 1
12 else: # Reduction and recursive calls
13 return
14
15 main() # Call the main function