Python｜yieldで関数を高速化する

def func1(cnt_max):
    return [i for i in range(cnt_max)]

def main1():
    cnt = 0
    for i in func1(10):
        cnt += i
    return cnt

print(main1())

# 出力
# 45

def func2(cnt_max):
    for i in range(cnt_max):
        yield i

def main2(cnt_max):
    cnt = 0
    for i in func2(cnt_max):
        cnt += i
    return cnt

print(main2(10))

# 出力
# 45