我有一个日期列表,例如:
['2011-02-27', '2011-02-28', '2011-03-01', '2011-04-12', '2011-04-13', '2011-06-08']
如何找到这些日期中包含的连续日期范围?在上面的例子中,范围应该是:
[{"start_date": '2011-02-27', "end_date": '2011-03-01'},
{"start_date": '2011-04-12', "end_date": '2011-04-13'},
{"start_date": '2011-06-08', "end_date": '2011-06-08'}
]
谢谢。
最佳答案
这行得通,但我对此并不满意,将致力于更清洁的解决方案并编辑答案。完成,这是一个干净、有效的解决方案:
import datetime
import pprint
def parse(date):
return datetime.date(*[int(i) for i in date.split('-')])
def get_ranges(dates):
while dates:
end = 1
try:
while dates[end] - dates[end - 1] == datetime.timedelta(days=1):
end += 1
except IndexError:
pass
yield {
'start-date': dates[0],
'end-date': dates[end-1]
}
dates = dates[end:]
dates = [
'2011-02-27', '2011-02-28', '2011-03-01',
'2011-04-12', '2011-04-13',
'2011-06-08'
]
# Parse each date and convert it to a date object. Also ensure the dates
# are sorted, you can remove 'sorted' if you don't need it
dates = sorted([parse(d) for d in dates])
pprint.pprint(list(get_ranges(dates)))
和相关输出:
[{'end-date': datetime.date(2011, 3, 1),
'start-date': datetime.date(2011, 2, 27)},
{'end-date': datetime.date(2011, 4, 13),
'start-date': datetime.date(2011, 4, 12)},
{'end-date': datetime.date(2011, 6, 8),
'start-date': datetime.date(2011, 6, 8)}]
关于Python:如何从日期列表中计算日期范围?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6934128/