Functional Programming

Optimized PyTree Utilities.

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

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

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.

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

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

Package for creating data pipelines with chain functional programming

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

Fast tools for functional programming

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

Functional programming in Python.

Functional programming in Python with generators and other utilities.

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

Simple, elegant, Pythonic functional programming.

Functional programming in Python

Type-safe functional tools for Python

Iterator-tools for functional programming.

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

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.

Tools for class only design.

The functional programming library you need

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

Tools for functional programming in python

A Lisp to Python transpiler with persistent data structures

Simple, elegant, Pythonic functional programming.

An efficient library for differentiable optimization for PyTorch.

iterator chaining, underscored by a two-headed queue

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

Universal LLM SDK + MCP Client: GPT-5.2, Claude Opus 4.5, Gemini 3 Flash, Gemini 3 Pro, Grok 4.1, DeepSeek V3.2 + 10 providers. LMArena top models. Natural language tool calling. Zero vendor lock-in. Production SDK + beautiful CLI.

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.

Provides functionality to benchmark a program and measure time and energy during execution.

Bear's functional programming playground: currying, dispatching, type magic, and chaos - all with bearly any dependencies

Simple and powerful Railway Oriented library for python

A library that gathers core functions for python programming.

pyfunctools - Functional programming toolkit

Pure, stateless game operations: deterministic, replay-able game state management

Composable function transformations for LLM programs

relational alegrbra for functional programs

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

A functional programming library for Python mimicking Java Streams and JS Arrays.

A purely functional agent framework with immutable state and composable tools - Python implementation

Python port of Scala ZIO for pure functional programming

Python collections in a functional-programming style

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

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

Clean, flexible input validation for Python applications

Forbidden Functional Programming in Python.

All the good stuff from Functional Programming

A toy functional language compiler written in Python

Dynamically typed functional programming language