Installation:

You can install from PyPi!

pip install datetime_periods

period usage

Pass in a datetime.datetime() object and a period name and it’ll return the beginning and end of that period.

>>> from datetime_periods import period
>>> period(datetime(2012, 4, 2, second=12), 'minute')
[datetime(2012, 4, 2), datetime(2012, 4, 2, 0, 0, 59)]
>>> period(datetime(2012, 4, 2), 'hour')
[datetime(2012, 4, 2, 0), datetime(2012, 4, 2, 0, 59, 59)]
>>> period(datetime(2012, 4, 2), 'day')
[datetime(2012, 4, 2), datetime(2012, 4, 2, 23, 59, 59)]
>>> period(datetime(2012, 4, 2), 'week')
[datetime(2012, 4, 2), datetime(2012, 4, 8, 23, 59, 59)]
>>> period(datetime(2012, 4, 15), 'month')
[datetime(2012, 4, 1), datetime(2012, 4, 30, 23, 59, 59)]
>>> period(datetime(2012, 4, 2), 'quarter')
[datetime(2012, 4, 1), datetime(2012, 6, 30, 23, 59, 59)]
>>> period(datetime(2012, 9, 1), 'half_year')
[datetime(2012, 7, 1), datetime(2012, 12, 31, 23, 59, 59)]
>>> period(datetime(2012, 7, 1), 'year')
[datetime(2012, 1, 1), datetime(2012, 12, 31, 23, 59, 59)]

TimeRange usage

The TimeRange class takes two times, start and stop, and creates datetime objects from them that is smart about when a date should roll over to the following day.

This class can also act like a 2 length list where index 0=start, 1=stop time. This to allow the class to be used for argument expansion and as an iterator.

>>> from datetime_periods import TimeRange
>>> tr = TimeRange('17:00', '23:00', '2013-12-25')
>>> tr.start
datetime(2013, 12, 25, 17)
>>> tr.stop
datetime(2013, 12, 25, 23)
>>> tr = TimeRange('17:00', '04:00', '2013-12-25')
>>> tr.start
datetime(2013, 12, 25, 17)
>>> tr.stop
datetime(2013, 12, 26, 4)
>>> tr[0] == tr.start
True
>>> tr[1] == tr.stop
True

Sugar

The sugar module has sugar functions for all variants available.

Sugar functions for entire period:

• period_second

• period_minute

• period_hour

• period_day

• period_week

• period_month

• period_quarter

• period_half_year

• period_year

Sugar functions for beginning of period:

• period_beginning_second

• period_beginning_minute

• period_beginning_hour

• period_beginning_day

• period_beginning_week

• period_beginning_month

• period_beginning_quarter

• period_beginning_half_year

• period_beginning_year

Sugar functions for end of period:

• period_end_second

• period_end_minute

• period_end_hour

• period_end_day

• period_end_week

• period_end_month

• period_end_quarter

• period_end_half_year

• period_end_year