kamalfarahani/katharos

A functional programming and concurrency library for Python: algebraic abstractions (Semigroups, Monoids, Functors, Applicatives, Monads), immutable data types, and message-passing concurrency, all designed as composable, type-safe values.

37 best points · 8 comments · 2 Hacker News posts · 222 GitHub stars · View on GitHub

Hacker News discussions

• Show HN: Katharos Functional programming and CSP-style concurrency for Python (37 points, 8 comments, by kamalf, 2026-08-02)
• Katharos: Monads, functors, and immutable data for Python (1 points, 0 comments, by h8hawk, 2026-05-27)