Maybe the toolz[0] family would cover your use cases? There is also a Cython implementation if you need better performance. [0] https://github.com/pytoolz/tool

Maybe the toolz[0] family would cover your use cases? There is also a Cython implementation if you need better performance. [0] https://github.com/pytoolz/toolz/ https://github.com/pytoolz/toolz/