Check iOのRegistrationで怒られた

registration.py

#python3.3 is inside
def checkio(els):
    return reduce(lambda x,y: x+y, els[0:3])

if checkio([1, 2, 3, 4, 5, 6]) == 6:
    print('Done!')

registration_passed.py

#python3.3 is inside
def checkio(els):
    from functools import reduce
    return reduce(lambda x,y: x+y, els[0:3])
 
if checkio([1, 2, 3, 4, 5, 6]) == 6:
    print('Done!')

registration_passed_2.py

#python3.3 is inside
def checkio(els):
    return sum(els[0:3])
 
if checkio([1, 2, 3, 4, 5, 6]) == 6:
    print('Done!')

python3.3 is inside

def checkio(els):
... return reduce(lambda x,y: x+y, els[0:3])
...
if checkio([1, 2, 3, 4, 5, 6]) == 6:
... print('Done!')
...
Done!

単純に3系でreduceがfunctoolsに移ったかららしい

あべさんにsumでいいんじゃね？と言われたので