Factorial using Recursion in python

def fact_recurse(n):
        if n==1:
                return n
        else:
                return n*fact_recurse(n-1)
num=int(input("Enter an integer to find factorial : "))
if num<0:
        print("Factorial of negative numbers does not exist.")
elif num==0:
        print("Factorial of 0 is 1.")
else:
        print("Factorial of ",num," is ",fact_recurse(num))

Output