Functional Programming

Optimized PyTree Utilities.

EasyGUI is a module for very simple, very easy GUI programming in Python. EasyGUI is different from other GUI generators in that EasyGUI is NOT event-driven. Instead, all GUI interactions are invoked by simple function calls.

Function and command-line program to strip Python type hints.

Never use print() to debug again: inspect variables, expressions, and program execution with a single, simple function call.

A library to create a command-line program from a function

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

Produce a plan that dispatches calls based on a graph of functions, satisfying data dependencies.

Package for creating data pipelines with chain functional programming

Functional programming in Python with generators and other utilities.

Functional Programming Streams ,Similar like Java, for writing concise functions

**Deal** is a Python library for [design by contract][wiki] (DbC) programming.

A library for the prediction and comparison of RNA secondary structures.

Fast tools for functional programming

Smart, pythonic, ad-hoc, typed polymorphism for Python

Functional programming in Python.

A tiny library to safely render compact HTML5 from Python expressions.

Java LSP server enforcing functional programming best practices — null safety, immutability, no exceptions

Iterator-tools for functional programming.

Functional programming in Python

Type-safe functional tools for Python

OpenAPI (Swagger) integration for Azure Functions Python v2 programming model

Visualize, create, and operate on pytrees in the most intuitive way possible.

High abstract python library for functional programming. Contains algebraic data structures known from Haskell or Scala.

A functional reactive platform used to process time-series streams. Provides support for backtest (simulation) and realtime time-series processing. Using a forward propagation graph with a microtask scheduler for the runtime engine.

Simple, elegant, Pythonic functional programming.

A collection of functional programming tools for the shell.

A set of helper functions to make working with spatial data in open source tools easier. This package is maintained by Earth Lab and was originally designed to support the earth analytics education program.

Tools for functional programming in python

Python collections in a functional-programming style

The functional programming library you need

An efficient library for differentiable optimization for PyTorch.

Functional programming helpers for Python.

CodeLogician applies neurosymbolic AI to translate source code into precise mathematical logic, striving to create a formal model of the program's behavior that's functionally equivalent to the original source code. Use with tools like Claude Code or by itself.

A Lisp to Python transpiler with persistent data structures

pyfunctools - Functional programming toolkit

A functional programming paradigm for mathematical modelling and data science

Simple, elegant, Pythonic functional programming.

Tools for class only design.

Simple and powerful Railway Oriented library for python

Supercharge your Python with parts of Lisp and Haskell.

Produce a plan that dispatches calls based on a graph of functions, satisfying data dependencies.

Python SDK + CLI for 11 LLM providers: Claude Sonnet 4.6, Claude Opus 4.6, Llama 4 Maverick, GPT-5.2, Gemini 3 Flash, Grok 4.1. Universal tool calling, MCP protocol, automatic fallback, zero vendor lock-in.

Flitter is a functional programming language and declarative system for describing 2D and 3D visuals

Clean, flexible input validation for Python applications

High-performance functional utilities implemented as a Python C/C++ extension

A Python library to simplify common programming tasks.

Functional programming for python

Never use print() to debug again; inspect variables, expressions, and program execution with a single, simple function call.