Python library for generating business dates for fast date operations and rich functionality.
Python library businessdate
A fast, efficient Python library for generating business dates for simple and fast date operations.
>>> from businessdate import BusinessDate >>> BusinessDate(2017,12,31) + '2 weeks' BusinessDate(20180114) >>> BusinessDate(20171231) + '2w' # same but shorter BusinessDate(20180114) >>> BusinessDate(20180114).to_date() datetime.date(2018, 1, 14)
Typical banking business features are provided like holiday adjustments to move dates away from weekend days or holidays. As well as functionality to get year fractions depending on day count conventions as the lengths of interest payment periods.
Beside dates business periods can be created for time intervals like 10Y, 3 Months or 2b. Those periods can easily be added to or subtracted from business dates.
Moreover range style schedule generator are provided to systematic build a list of dates. Such are used to set up a payment schedule of loan and financial derivatives.
>>> from datetime import date >>> from businessdate import BusinessDate, BusinessPeriod >>> BusinessDate(year=2014, month=1, day=11) BusinessDate(20140111) >>> BusinessDate(date(2014,1,11)) BusinessDate(20140111) >>> BusinessDate(20140111) BusinessDate(20140111) >>> BusinessDate('20140111') BusinessDate(20140111) >>> BusinessDate('2015-12-31') BusinessDate(20151231) >>> BusinessDate('31.12.2015') BusinessDate(20151231) >>> BusinessDate('12/31/2015') BusinessDate(20151231) >>> BusinessDate(42369) BusinessDate(20151231) >>> BusinessDate(20140101) + BusinessPeriod('1Y3M') BusinessDate(20150401) >>> BusinessDate(20140101) + '1Y3M' BusinessDate(20150401) >>> BusinessDate(20170101) - '1Y1D' BusinessDate(20151231) >>> BusinessDate() == BusinessDate(date.today()) True >>> BusinessDate('1Y3M20140101') BusinessDate(20150401)
For more examples see the documentation.
The latest stable version can always be installed or updated via pip:
$ pip install businessdate
The latest development version can be installed directly from GitHub:
$ pip install --upgrade git+https://github.com/sonntagsgesicht/businessdate.git
or downloaded from https://github.com/sonntagsgesicht/businessdate.
- decide which base class or inheritance for BusisnessDate is better:
- BaseDateFloat (float inheritance)
- BaseDateDatetimeDate (datetime.date inheritance)
2. store businessdays adjustment convention and holidays as private property of BusinessDate. The information should not get lost under BusinessPeriod operation. Decide which date determines convention and holidays of a BusinessRange.
Code and documentation are available according to the Apache Software License (see LICENSE).
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