Railway Oriented Programming Python Packages

expression

Functional programming for Python

result

NOT MAINTAINED - A simple Rust like Result type for Python 3. Fully type annotated.

returns

Make your functions return something meaningful, typed, and safe!

trcks

Python library for type-safe railway-oriented programming 🚂🐍

guards

An alternative to Python's try/except/else statements

fslash

Functional programming for Python

railway-framework

This is a Python framework for Railway Oriented Programming.

pyropust

A robust rope for Python orchestration: Rust-powered Result/Option types and type-safe pipelines.

raffiot

Robust And Fast Functional IO Toolkit

django-returns

Meaningful Django utils based on Functional Programming

dry-monads

Make your functions return something meaningful, typed, and safe!

either-option

Railway-Oriented Programming for Python — Option[T] and Either[T, E] sum types with sync + async combinators, sealed pattern matching, and 100% branch coverage.

result-test-publish-version

NOT MAINTAINED - A simple Rust like Result type for Python 3. Fully type annotated.

read-google-sheet

Railway-oriented Google Sheets reader returning Polars LazyFrames via Result types

unwrappy

Yet another Rust-inspired Result and Option ergonomics brought to Python, enabling safe, expressive error handling with errors as values.

polarway

Railway-oriented distributed reimplementation of Polars's fast Query Engine : hybrid storage in a Lakehouse & low-latency data streaming at scale. No JVM, forget executor memory / cores management... Function composition, improved Functors and Monadic-type usage for safe handling of your data as stream or from cold storage (any parquet-compatible)

pyrailway

A High-Level Architecture for Python Web Applications based on Trailblazer / Railway Oriented Programming