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fast, simple interval intersection

Project Description


Quicksect is a fast python / cython implementation of interval search based on the pure python version in bx-python I pulled it out, optimized and converted to cython and James Taylor has incoporated it back into bx-python with his improvements.

I have brought this project back from the dead because I want a fast, simple, no-dependencies Interval tree.

License is MIT.


pip install quicksect


>>> from quicksect import IntervalNode, Interval, IntervalTree

Most common use will be via IntervalTree:

>>> tree = IntervalTree()
>>> tree.add(23, 45)
>>> tree.add(55, 66)
>>>, 47)
>>>, 56)
[Interval(55, 66), Interval(23, 45)]
>>> tree.insert(Interval(88, 444))
>>> res = tree.find(Interval(99, 100))
>>> res
[Interval(88, 444)]
>>> res[0].start, res[0].end
(88, 444)

Thats pretty much everything you need to know about the tree.


$ python test


In some cases, users may want to utilize the lower-level interface that accesses the nodes of the tree:

>>> inter = IntervalNode(Interval(22, 33))
>>> inter = inter.insert(Interval(44, 55))
>>> inter.intersect(24, 26)
[Interval(22, 33)]
>>> inter.left(Interval(34, 35), n=1)
[Interval(22, 33)]
>>> inter.right(Interval(34, 35), n=1)
[Interval(44, 55)]

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