Conditional Functions in Python PRO

Python allows us to condition the definition of a function. Since the function is defined during the execution of the code itself we can use a conditional statement in order to define the function that fits most.

recursive = True

if recurcive:
    def factorial(n):
        print("within recursive factorial")
        if n==0:
            return 1
        else:
            return factorial(n-1)*n
else:
    def factorial(n):
        print("within simple factorial")
        index = 1
        total = 1
        while index<n:
            total *= index
            index+=1
        return total

print(factorial(3))

The following short video clip shows that.