Description:
prioritysearchtree 0.1.0
The priority search tree (PST) is data structure (mutable mapping {key: priority}) with the following properties:
Keys are stored in binary search tree (red-black tree in this case).
Maintains max heap properties (can return key with max priority in constant time).
Ability to perform efficient 3-sided search (finds items with key in interval [min_tree_key,max_tree_key] and priority is grater or equal to bottom_priority).
For example PST can store 2 dimensional points P(X,Y) using X coordinate as key and Y coordinate as priority. Such PST can perform 3 sided search to find points with X in [X_MIN,X_MAX] and Y >= Y_BOTTOM.
Installation
pip install priority-search-tree
You can also install the in-development version with:
pip install https://github.com/yusinv/priority-search-tree/archive/develop.zip
Documentation
https://priority-search-tree.readthedocs.io/
Development
To run all the tests run:
tox
Licence
Free software: GNU Lesser General Public License v3 or later (LGPLv3+)
Changelog
0.0.0 (2024-03-04)
First release on PyPI.
0.0.1 (2024-03-24)
Initial implementation.
0.0.2 (2024-03-26)
Added sorted_query method.
Added __len__ and __contains__ methods.
Added clear method.
Fixed issue with not unique heap keys
0.1.0 (2024-04-08)
Refactoring
Added PrioritySearchSet class
Added __iter__ method
License
For personal and professional use. You cannot resell or redistribute these repositories in their original state.
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