下面是一个稍微不同的答案，基于S.Lott的答案，给出了两个日期开始和结束之间的日期列表。在下面的例子中，从2017年初到今天。

start = datetime.datetime(2017,1,1)
end = datetime.datetime.today()
daterange = [start + datetime.timedelta(days=x) for x in range(0, (end-start).days)]

下面是一个稍微不同的答案，基于S.Lott的答案，给出了两个日期开始和结束之间的日期列表。在下面的例子中，从2017年初到今天。

start = datetime.datetime(2017,1,1)
end = datetime.datetime.today()
daterange = [start + datetime.timedelta(days=x) for x in range(0, (end-start).days)]

Matplotlib相关

from matplotlib.dates import drange
import datetime

base = datetime.date.today()
end  = base + datetime.timedelta(days=100)
delta = datetime.timedelta(days=1)
l = drange(base, end, delta)

从这个问题的标题中，我希望找到类似range()的东西，这将让我指定两个日期并创建一个包含所有日期的列表。这样，如果事先不知道，就不需要计算这两个日期之间的天数。

所以，冒着有点跑题的风险，这句话就可以了:

import datetime
start_date = datetime.date(2011, 1, 1)
end_date   = datetime.date(2014, 1, 1)

dates_2011_2013 = [ start_date + datetime.timedelta(n) for n in range(int ((end_date - start_date).days))]

所有功劳都归于这个答案!

一个泛型方法，允许在参数化窗口大小(天，分钟，小时，秒)上创建日期范围:

from datetime import datetime, timedelta

def create_date_ranges(start, end, **interval):
    start_ = start
    while start_ < end:
        end_ = start_ + timedelta(**interval)
        yield (start_, min(end_, end))
        start_ = end_

测试:

def main():
    tests = [
        ('2021-11-15:00:00:00', '2021-11-17:13:00:00', {'days': 1}),
        ('2021-11-15:00:00:00', '2021-11-16:13:00:00', {'hours': 12}),
        ('2021-11-15:00:00:00', '2021-11-15:01:45:00', {'minutes': 30}),
        ('2021-11-15:00:00:00', '2021-11-15:00:01:12', {'seconds': 30})
    ]
    for t in tests:
        print("\nInterval: %s, range(%s to %s)" % (t[2], t[0], t[1]))
        start = datetime.strptime(t[0], '%Y-%m-%d:%H:%M:%S')
        end =  datetime.strptime(t[1], '%Y-%m-%d:%H:%M:%S')
        ranges = list(create_date_ranges(start, end, **t[2]))        
        x = list(map(
            lambda x: (x[0].strftime('%Y-%m-%d:%H:%M:%S'), x[1].strftime('%Y-%m-%d:%H:%M:%S')),
            ranges
        ))
        print(x)
main()

测试输出:

Interval: {'days': 1}, range(2021-11-15:00:00:00 to 2021-11-17:13:00:00)
[('2021-11-15:00:00:00', '2021-11-16:00:00:00'), ('2021-11-16:00:00:00', '2021-11-17:00:00:00'), ('2021-11-17:00:00:00', '2021-11-17:13:00:00')]

Interval: {'hours': 12}, range(2021-11-15:00:00:00 to 2021-11-16:13:00:00)
[('2021-11-15:00:00:00', '2021-11-15:12:00:00'), ('2021-11-15:12:00:00', '2021-11-16:00:00:00'), ('2021-11-16:00:00:00', '2021-11-16:12:00:00'), ('2021-11-16:12:00:00', '2021-11-16:13:00:00')]

Interval: {'minutes': 30}, range(2021-11-15:00:00:00 to 2021-11-15:01:45:00)
[('2021-11-15:00:00:00', '2021-11-15:00:30:00'), ('2021-11-15:00:30:00', '2021-11-15:01:00:00'), ('2021-11-15:01:00:00', '2021-11-15:01:30:00'), ('2021-11-15:01:30:00', '2021-11-15:01:45:00')]

Interval: {'seconds': 30}, range(2021-11-15:00:00:00 to 2021-11-15:00:01:12)
[('2021-11-15:00:00:00', '2021-11-15:00:00:30'), ('2021-11-15:00:00:30', '2021-11-15:00:01:00'), ('2021-11-15:00:01:00', '2021-11-15:00:01:12')]

一个带有datetime和dateutil的月日期范围生成器。简单易懂的:

import datetime as dt
from dateutil.relativedelta import relativedelta

def month_range(start_date, n_months):
        for m in range(n_months):
            yield start_date + relativedelta(months=+m)