{"categories":[{"label":"Python Modules","url":"https://skillfed.io/packages/category/software-development-libraries-python-modules/19"}],"enrichment":{"capability":"OSlash implements functional programming abstractions\u2014functors, applicatives, and monads\u2014in Python 3.12+ with modern type annotations, providing educational implementations of concepts from Haskell.","skillfed_tags":["functional-programming","educational","type-safe"],"use_cases":["Learning functional programming concepts by studying and experimenting with Haskell-style abstractions in Python.","Understanding how Maybe and Either monads handle optional values and error cases without exceptions.","Exploring IO monads and Reader/Writer patterns for managing side effects and logging in a functional style.","Teaching functional programming principles to Python developers using a type-safe, well-documented codebase.","Prototyping functional algorithms and compositions before porting to a production functional library."],"what_it_does":"OSlash is a Python library that teaches and demonstrates functional programming by implementing Haskell-style abstractions\u2014Functor, Applicative, Monad, and concrete monads like Maybe, Either, IO, Writer, Reader, and State. It uses Python 3.12's modern type system (PEP 695 syntax) and is fully type-checked with Pyright in strict mode, making it a learning tool rather than a production framework.\n\nThe library unifies functional and object-oriented paradigms by wrapping functions in classes and avoiding mutable state; data lives only in function closures. It provides monadic sequencing operators, lifting, composition, and utility functions. The author explicitly recommends Expression for production functional programming; OSlash is designed as a tutorial implementation to understand how these concepts work.","worth_installing":"Yes, if your goal is learning functional programming concepts or teaching them to others. The modern type system, strict Pyright checking, and educational focus make it a solid learning resource. No, if you need production-grade functional programming\u2014use Expression instead. The aging maintenance status is not a blocker for a stable educational library, but verify that tutorials and examples match version 2.0.0."},"id":"oslash","links":{"html":"https://skillfed.io/packages/oslash","md":"https://skillfed.io/packages/oslash.md","pypi":"https://pypi.org/project/oslash/"},"maintenance":{"status":"aging"},"meta":{"latest_release":"2025-11-17","license_spdx":null,"license_treatment":"permissive","name":"oslash","python_support":"supports_current","summary":"Functional library for Functors, Applicatives, and Monads in Python 3.12+"},"popularity":{"monthly_downloads":121905,"position":11969,"tier":"top_15000"},"security":{"n_vulnerabilities":0},"version":"2.0.0"}