On Mon, Jan 19, 2015 at 11:52 PM, Devin Jeanpierre <jeanpierr...@gmail.com> wrote: > On Mon, Jan 19, 2015 at 3:08 PM, Steven D'Aprano > <steve+comp.lang.pyt...@pearwood.info> wrote: >> Zachary Gilmartin wrote: >> >>> Why aren't there trees in the python standard library? >> >> Possibly because they aren't needed? Under what circumstances would you use >> a tree instead of a list or a dict or combination of both? >> >> That's not a rhetorical question. I am genuinely curious, what task do you >> have that you think must be solved by a tree? > > In general, any time you want to maintain a sorted list or mapping, > balanced search tree structures come in handy. > > Here's an example task: suppose you want to represent a calendar, > where timeslots can be reserved for something. Calendar events are not > allowed to intersect.
Maybe because I'm not a computer scientist, I can't immediately see why this is a "Tree" problem and not a "Database" problem. Genuinely interested. -- https://mail.python.org/mailman/listinfo/python-list
