======= Hask3

.. image:: https://travis-ci.org/mvaled/hask.svg

Hask3 is a pure-Python, zero-dependencies library that mimics most of the core language tools from Haskell, including:

• Full Hindley-Milner type system (with typeclasses) that will typecheck any function decorated with a Hask type signature

• Easy creation of new algebraic data types and new typeclasses, with Haskell-like syntax

• Pattern matching with case expressions

• Automagical function currying/partial application and function composition

• Efficient, immutable, lazily evaluated List type with Haskell-style list comprehensions

• All your favorite syntax and control flow tools, including operator sections, monadic error handling, guards, and more

• Python port of (some of) the standard libraries from Haskell's base, including:

  • Algebraic datatypes from the Haskell Prelude, including Maybe and Either

  • Typeclasses from the Haskell base libraries, including Functor, Applicative, Monad, Enum, Num, and all the rest

  • Standard library functions from base, including all functions from Prelude, Data.List, Data.Maybe, and more

Features not yet implemented, but coming soon:

• MultiParamTypeclasses

• Better support for polymorphic return values/type defaulting

• Better support for lazy evaluation (beyond just the List type and pattern matching)

• More of the Haskell standard library (Control.* libraries, QuickCheck, and more)

• Monadic, lazy I/O

.. warning:: Note that all of this is still very much pre-alpha, and some things may be buggy!

Credits

This is a fork of hask <https://github.com/billmurphy/hask_>__ modified to run in Python 3.6+.

See the LICENSE file <https://github.com/mvaled/hask/blob/master/LICENSE_>__ keeps the original author and rights.

Changes are copyright Merchise Autrement [~º/~] and Contributors, but with the same