Find Factorial with Python

factorial.py

def factorial(start): # Function to find factorial
    numbers = list(range(1, start+1)) # Getting the list to find factorial
    factorial = 1 # defining the factorial as 1

    for number in numbers: # In the list of numbers, Get numbers one by one
        factorial *= number #  and multiplying it by the factorial and save it to factorial

    rounding = "{:0.2f}".format(factorial) # Rounding the factorial
    print(rounding) # Outputting the factorial as rounded

def getin(): # Function to get inputs
    try:
        start = int(input("Enter A Number to Find Factorial Number : ")) # Trying to get the input number
        factorial(start) # Passing it to find the factorial
    except ValueError: # If a value error occurs
        print("Enter a number (Integer) only...") # Telling the user to input only number
        getin() # Getting the input again

getin() # Calling getin() function

This is made for google code in