在python中的问题，请问如何解决

创建一个20以内的奇函列表，计算列表中所有数的和

lists=[i for i  in range(1,20,2)]
print(sum(lists))

def sum_num(num):
    list = []
    for i in range(num):
        if i % 2 == 1:
            list.append(i)
    result = sum(list)
    return list,result
num =20
list,end_num =sum_num(num)
print(list,end_num)