toolz is a pure Python package that borrows heavily from contemporary
functional languanges. It is designed to interoperate seamlessly with other
functools, and third party libraries.
High performance functional data analysis is possible with builtin types
dict, and user-defined data structures; and low memory
usage is achieved by using the iterator protocol and returning iterators
cytoolz implements the same API as
toolz. The main differences are
cytoolz is faster (typically 2-5x faster with a few spectacular
cytoolz offers a C API that is accessible to other
projects developed in Cython. Since
toolz is able to process very
large (potentially infinite) data sets, the performance increase gained by
cytoolz can be significant.
New BSD. See License File.
cytoolz is on the Python Package Index (PyPI):
pip install cytoolz
cytoolz supports Python 2.6+ and Python 3.2+ with a common codebase.
It is developed in Cython, but requires no dependecies other than CPython
and a C compiler. Like
toolz, it is a light weight dependency.
cytoolz) aims to be a repository for utility functions,
particularly those that come from the functional programming and list
processing traditions. We welcome contributions that fall within this scope
and encourage users to scrape their
util.py files for functions that are
See our mailing list. We're friendly.