pytrie is a Python library implementing a trie data structure.
Trie data structure, also known as radix or prefix tree, is an ordered tree associating keys to values where all the descendants of a node have a common prefix (associated with that node).
The trie module contains Trie, CharTrie and StringTrie classes each implementing a mutable mapping interface, i.e. interface of the dictionary. As such, in most circumstances, Trie could be used as a drop-in replacement for a dict. Obviously the prefix nature of the data structure is what gives it its strengths.
- A full mutable mapping implementation.
- Supports iterating over as well as deleting a subtrie.
- Supports prefix checking as well as shortest and longest prefix look-up.
- Extensible for any kind of user-defined keys.
0.9: 2014/02/03
- Initial release.