python-blist

The blist is a drop-in replacement for the Python list that provides better performance when modifying large lists. The blist package also provides sortedlist, sortedset, weaksortedlist, weaksortedset, sorteddict, and btuple types. Python's built-in list is a dynamically-sized array; to insert or remove an item from the beginning or middle of the list, it has to move most of the list in memory, i.e., O(n) operations. The blist uses a flexible, hybrid array/tree structure and only needs to move a small portion of items in memory, specifically using O(log n) operations. For small lists, the blist and the built-in list have virtually identical performance.

Releases Overview