Reactive Python Packages

reactivex

ReactiveX for Python

influxdb-client

InfluxDB 2.0 python client

marimo

A reactive notebook for Python — run reproducible experiments, query with SQL, execute as a script, deploy as an app, and version with git. Stored as pure Python. All in a modern, AI-native editor.

rx

ReactiveX for Python

marimo-base

A reactive notebook for Python — run reproducible experiments, query with SQL, execute as a script, deploy as an app, and version with git. Stored as pure Python. All in a modern, AI-native editor.

djust

Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance

csp

csp is a high performance reactive stream processing library, written in C++ and Python

python-redux

Redux implementation for Python

voodoo-framework

The AI-native application framework for Python — reactive UIs, APIs, agents, workers, realtime, MCP, and durable execution in one runtime.

marimo-studio

🎬 Build custom reports, apps, and presentations from the same notebook

hmr

Real hot-module reload for Python—side effects handled reactively. https://py3.online/hmr

reacnetgenerator

an automatic reaction network generator for reactive molecular dynamics simulation

create-caspian-app

Caspian — The Native Python Web Framework for the Reactive Web

bigbrother

An evil, awful, terrible, no-good library for watching objects for mutation. Do not use this library.

csp-gateway

csp-gateway is a framework for building high-performance streaming applications

hoptex

EasyMotion/Hop like movement for TUI Framework Textual!

marimo-agents

A reactive notebook for Python — run reproducible experiments, query with SQL, execute as a script, deploy as an app, and version with git. Stored as pure Python. All in a modern, AI-native editor.

violit

Pure Python Web Framework. Streamlit simplicity, no reruns.

marimo-flow

Agentic scientific-computing platform: a reactive multi-agent team that orchestrates PINA physics-informed neural-network workflows via pydantic-graph, with MLflow tracing/provenance and a marimo chat UI (plus A2A & AG-UI servers).

signified

A Python library for reactive programming (with kind-of working type narrowing).

broqer

Carefully crafted library to operate with continuous streams of data in a reactive style with publish/subscribe, asyncio support and broker functionality.

uvicorn-hmr

Real hot-module reload for Python—side effects handled reactively. https://py3.online/hmr

mcp-hmr

Real hot-module reload for Python—side effects handled reactively. https://py3.online/hmr

csp-bot

Reactive chat bot framework