Module for performing simple business day arithmetic; forked from python-bizdatetime
bizdatim is a simple library for performing business day arithmetic.
Source is hosted at https://github.com/Polyconseil/bizdatim.
Rotating weekends/holidays are not supported (e.g., two days working, third day off).
The business hour arithmetic is limited to additions.
- Weekly repeating non-business day. Weekend does not have to be at the end (or beginning) or the week. Weekends do not have to be consecutive days.
- Like weekend, holiday is a non-business day. Unlike weekend, holiday does not have weekly regularity. It is just a date. Holiday can coincide with weekend.
- Working hours
- The starting and ending time of a business day.
- Is a (possibly empty) collection of weekends, holidays and working hours. All calculations are performed within a policy.
All business day arithmetic is performed in the context of policy:
>>> from bizdatim import Polycy, SAT, SUN >>> from datetime import date >>> policy = Policy(weekends=(SAT, SUN), holidays=(date(2011,7,1),)) >>> day = date(2011, 6, 29) # Wednesday >>> print(policy.add(day, 2)) # add 2 business dates -> Monday after the long weekend datetime.date(2011, 7, 4) >>> print(policy.biz_day_delta(date(2011, 7, 4), date(2011, 6, 30))) # one holiday, one weekend between 1
There is also the possibility to do arithmetic on business hours:
>>> policy = Policy(weekends=(SAT, SUN), holidays=(date(2011,7,1)), hours=(time(8), time(20))) >>> day = datetime(2011, 6, 29, 14, 30) >>> policy.add(day, timedelta(days=1, hours=5)) # The day after, in the afternoon datetime.datetime(2011, 6, 29, 19, 30) >>> policy.add(day, timedelta(days=1, hours=10)) # Too many hours, will finish the monday after the long weekend datetime.datetime(2011, 7, 4, 12, 30)
Policy method docstrings contain more examples.
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