我知道使用x = mydate.strftime("%U")
可以得到一个日期所在的星期数,现在我需要找到落在那个星期的所有日期。最终,我需要从django的日期对象中获取查询集,该查询集只返回基于已知星期数的给定周内的所有记录。类似这样:
y = Stuff.objects.filter=(date__range=[#anydate that is in the week number of x])
适应这个答案,你可以使用Python内置的time、datetime模块来完成此操作。
以下是代码:
import time
import datetime
WEEK = 21
startdate = time.asctime(time.strptime('2008 %d 1' % WEEK, '%Y %W %w'))
startdate = datetime.datetime.strptime(startdate, '%a %b %d %H:%M:%S %Y')
dates = [startdate]
for i in range(1, 7):
dates.append(startdate + datetime.timedelta(days=i))
print dates
## -- End pasted text --
[datetime.datetime(2008, 5, 26, 0, 0), datetime.datetime(2008, 5, 27, 0, 0), datetime.datetime(2008, 5, 28, 0, 0), datetime.datetime(2008, 5, 29, 0, 0), datetime.datetime(2008, 5, 30, 0, 0), datetime.datetime(2008, 5, 31, 0, 0), datetime.datetime(2008, 6, 1, 0, 0)]
您可以使用Arrow进行此操作:
import arrow
def get_week(dt):
mydate = arrow.get(dt)
start = mydate.floor('week')
end = mydate.ceil('week')
return arrow.Arrow.range('day', start, end)
输出:
In [369]: list(get_week(datetime.datetime.utcnow()))
Out[369]:
[<Arrow [2015-04-20T00:00:00+00:00]>,
<Arrow [2015-04-21T00:00:00+00:00]>,
<Arrow [2015-04-22T00:00:00+00:00]>,
<Arrow [2015-04-23T00:00:00+00:00]>,
<Arrow [2015-04-24T00:00:00+00:00]>,
<Arrow [2015-04-25T00:00:00+00:00]>,
<Arrow [2015-04-26T00:00:00+00:00]>]