python - 迭代日期时间对象以生成字符串

Question

我有 2 个 datetime 对象，我想创建一个字符串列表，表示两个 datetime 对象之间按小时递增。例如，

dt_obj1 = datetime.datetime(2015, 12, 11, 21, 42, 39, 381926)
dt_obj2 = datetime.datetime(2015, 12, 13, 13, 42, 39, 381926)

我想生成这种类型的列表

[
"20151211-2142",
"20151211-2242",
"20151211-2342",
"20151212-0042",
"20151212-0142",
...
]

我不确定当以小时为增量更改日、月或年时如何更新字符串

Answer 1

我会创建一个生成器，类似于 range()，按一小时为单位:

import datetime
import pprint

def daterange(start, stop, step):
    while start < stop:
        yield start
        start += step

dt_obj1 = datetime.datetime(2015, 12, 11, 21, 42, 39, 381926)
dt_obj2 = datetime.datetime(2015, 12, 13, 13, 42, 39, 381926)

hour = datetime.timedelta(seconds=3600)
result = [date.strftime('%Y%m%d-%H%M')
          for date in daterange(dt_obj1, dt_obj2, hour)]

pprint.pprint(result)