Python使用生成器generator

Python3，使用生成器，生成一个列表，保存从历史日期到现在所有的天

#!/usr/bin/python

import datetime

def date_print(day):
    Lis = []
    begin = datetime.datetime.strptime(day, '%Y-%m-%d')
    #print(type(begin))
    nowtime = datetime.datetime.today()
    for i in range((nowtime - begin).days + 1):
        yield i
        date_day = begin + datetime.timedelta(days = i)
        date = datetime.datetime.strftime(date_day, '%Y-%m-%d')
        Lis.append(str(date))
    print(Lis)

date1 = date_print("2019-11-29")
print(type(date1))
for i in date1:
    pass

直接运行结果