Time Window is a small Python library that implements a representation for a period of time, in the form of a half-open interval [since, until).
Install using pip from PyPI.
pip install time-windowInstantiate a new TimeWindow object using two datetime.datetime objects for the boundaries.
>>>fromdatetimeimportdatetime>>>fromtime_windowimportTimeWindow>>>since=datetime(2019, 1, 23) >>>until=datetime(2019, 1, 29) >>>tw=TimeWindow(since, until) >>>twTimeWindow(datetime.datetime(2019, 1, 23, 0, 0), datetime.datetime(2019, 1, 29, 0, 0))Alternatively, instantiate a new TimeWindow object using a datetime.datetime object and one datetime.timedelta for the definition of the boundaries.
>>>fromdatetimeimporttimedelta>>>delta=timedelta(days=1) >>>tw=TimeWindow.from_timedelta(since, delta) >>>twTimeWindow(datetime.datetime(2019, 1, 23, 0, 0), datetime.datetime(2019, 1, 24, 0, 0))Get the size of the window.
>>>tw.deltadatetime.timedelta(1)Get the time that is in the middle of the window.
>>>tw.middledatetime.datetime(2019, 1, 23, 12, 0)You can also check if two TimeWindow objects overlap.
>>>tw=TimeWindow(datetime(2019, 1, 23), datetime(2019, 1, 29)) >>>tw2=TimeWindow(datetime(2019, 1, 27), datetime(2019, 1, 30)) >>>tw.overlaps(tw2) TrueComplementary to the above action, you can check if two time windows are contiguous (i.e., adjacent, sharing one boundary).
>>>tw=TimeWindow(datetime(2019, 1, 23), datetime(2019, 1, 29)) >>>tw2=TimeWindow(datetime(2019, 1, 20), datetime(2019, 1, 23)) >>>tw.contiguous(tw2) [TimeWindow(datetime.datetime(2019, 1, 20, 0, 0), datetime.datetime(2019, 1, 23, 0, 0)), TimeWindow(datetime.datetime(2019, 1, 23, 0, 0), datetime.datetime(2019, 1, 29, 0, 0))] >>>tw3=TimeWindow(datetime(2019, 1, 20), datetime(2019, 1, 21)) >>>tw.contiguous(tw3) FalseAny TimeWindow object offers some of the standard set operations.
>>>tw=TimeWindow(datetime(2019, 1, 23), datetime(2019, 1, 29)) >>>tw2=TimeWindow(datetime(2019, 1, 27), datetime(2019, 1, 30)) >>>tw.intersection(tw2) TimeWindow(datetime.datetime(2019, 1, 27, 0, 0), datetime.datetime(2019, 1, 29, 0, 0)) >>>tw.union(tw2) TimeWindow(datetime.datetime(2019, 1, 23, 0, 0), datetime.datetime(2019, 1, 30, 0, 0)) >>>tw.complement(tw2) TimeWindow(datetime.datetime(2019, 1, 23, 0, 0), datetime.datetime(2019, 1, 27, 0, 0))Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
Please make sure to update tests as appropriate.