pygtrie 0.9.1

Trie data structure implementation.

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.

Features

• 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.

Version History

0.9: 2014/02/03

• Initial release.