如何获得当月的所有日子？

我想获得当前每个月的所有对象datetime，但我还没有完成。预期结果我想要：如何获得当月的所有日子？

[datetime.date(2014, 1, 1), datetime.date(2014, 1, 2), 
datetime.date(2014, 1, 3), ..., datetime.date(2014, 1, 29), 
datetime.date(2014, 1, 30), datetime.date(2014, 1, 31)]

我该如何解决这个问题？

请给我看你的想法或建议。谢谢！

来源

2014-01-20 Tan Viet

你想知道有多少天有一个月？你想在一个月的每一天使用'datetime'对象吗？请详细说明你正在寻找什么，并告诉我们你到目前为止所尝试的。 – senshin

检查[日历模块]（http://docs.python.org/3/library/calendar.html） – codeape

@ senshin：对不起，我更新了我的问题。 –

下面是与datetime和calendar一个解决方案：

>>> import datetime, calendar 
>>> year = 2014 
>>> month = 1 
>>> num_days = calendar.monthrange(year, month)[1] 
>>> days = [datetime.date(year, month, day) for day in range(1, num_days+1)] 
>>> days 
[datetime.date(2014, 1, 1), datetime.date(2014, 1, 2), datetime.date(2014, 1, 3), datetime.date(2014, 1, 4), datetime.date(2014, 1, 5), datetime.date(2014, 1, 6), datetime.date(2014, 1, 7), datetime.date(2014, 1, 8), datetime.date(2014, 1, 9), datetime.date(2014, 1, 10), datetime.date(2014, 1, 11), datetime.date(2014, 1, 12), datetime.date(2014, 1, 13), datetime.date(2014, 1, 14), datetime.date(2014, 1, 15), datetime.date(2014, 1, 16), datetime.date(2014, 1, 17), datetime.date(2014, 1, 18), datetime.date(2014, 1, 19), datetime.date(2014, 1, 20), datetime.date(2014, 1, 21), datetime.date(2014, 1, 22), datetime.date(2014, 1, 23), datetime.date(2014, 1, 24), datetime.date(2014, 1, 25), datetime.date(2014, 1, 26), datetime.date(2014, 1, 27), datetime.date(2014, 1, 28), datetime.date(2014, 1, 29), datetime.date(2014, 1, 30), datetime.date(2014, 1, 31)]

来源

2014-01-20 10:58:57 senshin

@seeshin：这是我想要的答案。感谢您的建议！ –

查找到calendar模块：

import calendar 
print calendar.monthcalendar(2013, 4) 
[[1, 2, 3, 4, 5, 6, 7], [8, 9, 10, 11, 12, 13, 14], [15, 16, 17, 18, 19, 20, 21], [22, 23, 24, 25, 26, 27, 28], [29, 30, 0, 0, 0, 0, 0]]

来源

2014-01-20 10:53:08 Dmitry

有几种方法，但calendar.monthrange，你可以得到一个元组(first_weekday, nb_days)：

>>> from calendar import monthrange 
>>> monthrange(2014, 2) 
(5, 28) 
>>> a = monthrange(2014, 2) 
>>> range(1, a[1]+1) 
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28] 
>>> [datetime.date(2014, 2, day) for day in range(1, a[1]+1)] 
[datetime.date(2014, 1, 1), datetime.date(2014, 1, 2), datetime.date(2014, 1, 3), datetime.date(2014, 1, 4), datetime.date(2014, 1, 5), datetime.date(2014, 1, 6), datetime.date(2014, 1, 7), datetime.date(2014, 1, 8), datetime.date(2014, 1, 9), datetime.date(2014, 1, 10), datetime.date(2014, 1, 11), datetime.date(2014, 1, 12), datetime.date(2014, 1, 13), datetime.date(2014, 1, 14), datetime.date(2014, 1, 15), datetime.date(2014, 1, 16), datetime.date(2014, 1, 17), datetime.date(2014, 1, 18), datetime.date(2014, 1, 19), datetime.date(2014, 1, 20), datetime.date(2014, 1, 21), datetime.date(2014, 1, 22), datetime.date(2014, 1, 23), datetime.date(2014, 1, 24), datetime.date(2014, 1, 25), datetime.date(2014, 1, 26), datetime.date(2014, 1, 27), datetime.date(2014, 1, 28), datetime.date(2014, 1, 29), datetime.date(2014, 1, 30), datetime.date(2014, 1, 31)]

与函数，使之清洁：

from calendar import monthrange 
import datetime 

def get_datetime_range(year, month): 
    nb_days = monthrange(year, month)[1] 

    return [datetime.date(year, month, day) for day in range(1, nb_days+1)] 

print get_datetime_range(2014, 2) # usage example

来源

2014-01-20 10:56:05

使用datetime和timedelta：

import datetime 
d0 = datetime.datetime(year=2014, month=1, day=1) 
d1 = datetime.datetime(year=2014, month=2, day=1) 
print (d1 - d0).days 
>>> 31

来源

2014-01-20 10:56:41 wroniasty

>>> from calendar import Calendar 
>>> Calendar().monthdayscalendar(2014,1) 
[[0, 0, 1, 2, 3, 4, 5], [6, 7, 8, 9, 10, 11, 12], [13, 14, 15, 16, 17, 18, 19], [20, 21, 22, 23, 24, 25, 26], [27, 28, 29, 30, 31, 0, 0]] 

>>> month = Calendar().itermonthdates(2014,1) 
>>> print [day for day in month if day.month == 1] # this function will pad to make up full weeks, so filter it by month 
[datetime.date(2014, 1, 1), datetime.date(2014, 1, 2), datetime.date(2014, 1, 3), datetime.date(2014, 1, 4), datetime.date(2014, 1, 5), datetime.date(2014, 1, 6), datetime.date(2014, 1, 7), datetime.date(2014, 1, 8), datetime.date(2014, 1, 9), datetime.date(2014, 1, 10), datetime.date(2014, 1, 11), datetime.date(2014, 1, 12), datetime.date(2014, 1, 13), datetime.date(2014, 1, 14), datetime.date(2014, 1, 15), datetime.date(2014, 1, 16), datetime.date(2014, 1, 17), datetime.date(2014, 1, 18), datetime.date(2014, 1, 19), datetime.date(2014, 1, 20), datetime.date(2014, 1, 21), datetime.date(2014, 1, 22), datetime.date(2014, 1, 23), datetime.date(2014, 1, 24), datetime.date(2014, 1, 25), datetime.date(2014, 1, 26), datetime.date(2014, 1, 27), datetime.date(2014, 1, 28), datetime.date(2014, 1, 29), datetime.date(2014, 1, 30), datetime.date(2014, 1, 31)]

http://docs.python.org/3/library/calendar.html

来源

2014-01-20 11:01:39

如何获得当月的所有日子？

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