Question

def countup(k, n):
     'counts up from k to n'
     if k == n:
         print(k)
     elif n <= 0:
         print("Let's go!")
     else:
         print(k)
         countup(k+1,n)

I want to add a print statement of “Let’s Go” before the recursion starts so it would look like this:

countup(3,6)

Let’s Go!
3
4
5
6

Answer 1

You can write a wrapper function like this

def countup(k,n):
    print "Let's Go"
    _countup(k,n)

def _countup(k, n):
     'counts up from k to n'
     if k == n:
         print(k)
     else:
         print(k)
         _countup(k+1,n)