smmap2 - Shared Memory Map

smmap2 is a mirror package on PyPI for the `smmap` library, specifically distributing version 3.0.1 of `smmap` under the name `smmap2`. It provides an efficient way to memory-map data, particularly for large files, and is primarily intended as an internal dependency for specific versions of `GitPython` or projects requiring this exact older version. The upstream `smmap` project (at `gitpython-developers/smmap`) has since progressed to version 5.x.x.