fibonacci_num.py

def Fibonacci(n):

    if n < 0:
        print("Incorrect input")

    elif n == 0:
        return 0

    elif n == 1 or n == 2:
        return 1
 
    else:
        return Fibonacci(n-1) + Fibonacci(n-2)
 
print(Fibonacci(int(input("enter the number : "))))