<gh_stars>1-10
def recurse(level):
    print ('recurse({})'.format(level))
    if level:
        recurse(level - 1)

def not_called():
    print('This function is never called')
def recurse(level):
    print ('recurse({})'.format(level))
    if level:
        recurse(level - 1)

def not_called():
    print('This function is never called')