Lighting Memory-Mapped Database (LMDB) is an ultra-fast, ultra-compact key-value embedded data store developed for the OpenLDAP Project. It uses memory-mapped files, so it has the read performance of a pure in-memory database while still offering the persistence of standard disk-based databases, and is only limited to the size of the virtual address space (it is not limited to the size of physical RAM).

This package contains the 'lmdb' Python extension module.