def recurse(li, depth = 3, result =[]):
    if depth == 0:
        return result
    if not result:
        return recurse(li, depth -1, zip(li))
    else:
        nr = [ (x,) + y for x in li for y in result]
        return recurse(li, depth -1, nr)

recurse([0,1])

def recurse_trans(li, depth = 3):
    result = zip(li[:])
    depth -= 1
    while True:
        if depth <= 0:
            break
        nr = [(x,) + y for x in li for y in result]
        result = nr
        depth -= 1
    return result

recurse_trans([0,1])