extra-collections (pypi): `extra-collections` (or `extra` for short) is a python3 pacakge that provides an **pythonic**, **intuitive**, and **easy** implementation of the most common data structures used in software projects.
Keywords: avl-tree|binary-search-tree|bst|circular-linked-list|data-structures|deque|doubly-linked-list|heap|linked-list|queue|radix-trie|red-black-tree|skip-list|splay-tree|stack|suffix-trie|treap|tree-structure|trie