python3-toolz 0.9.0-1.1 (amd64 binary) in ubuntu hirsute

 A set of utility functions for iterators, functions, and
 dictionaries. These functions interoperate well and form the
 building blocks of common data analytic operations. They extend the
 standard libraries itertools and functools and borrow heavily from
 the standard libraries of contemporary functional languages.
 .
 This contains the Python 3 version