returns (conda): Brings functional programming to Python land by providing a bunch of  primitives to write declarative business logic. Also enforces better  architecture with fully typed with annotations and checked with mypy.  This package is PEP561 compatible and adds emulated Higher Kinded Types  support. It also provides type-safe interfaces to create your own data-types  with enforced laws, and has a bunch of helpers for better composition.
Keywords: dry-python|fp|functional-programming|hacktoberfest|mypy|mypy-plugins|mypy-stubs|python|python3|railway-oriented-programming|type-safety