15 Popular Open-Source Python Frameworks for Web, Networking, Data Processing, and More

Python offers a rich ecosystem of open‑source frameworks that span web development, networking, data analysis, and distributed computing.

Django – a full‑stack web framework renowned for its automatic admin interface generated from ORM models.

Diesel – an event‑driven I/O library built on Greenlet, supporting TCP and UDP client/server programming.

Flask – a lightweight “micro‑framework” based on Werkzeug and Jinja2, extensible via extensions.

Cubes – a lightweight OLAP framework providing multidimensional analysis tools.

Kartograph.py – a beta‑stage library for generating SVG maps for ESRI.

Pulsar – an event‑driven concurrent framework enabling asynchronous servers across processes or threads.

Web2py – a full‑stack web framework focused on rapid, secure, and portable development, compatible with Google App Engine.

Falcon – a high‑performance API framework encouraging RESTful design with minimal overhead.

Dpark – a Python clone of Spark for large‑scale data processing and iterative computation, widely used at Douban.

Buildbot – a continuous‑integration system that automates builds, tests, and releases across multiple platforms.

Zerorpc – a high‑performance distributed RPC built on ZeroMQ and MessagePack.

Bottle – a single‑file WSGI micro‑framework with no external dependencies.

Tornado – an asynchronous, non‑blocking web server and framework originally developed for FriendFeed.

web.py – a minimalist web framework that provides only the essentials without routing, templating, or ORM.

Scrapy – a lightweight, easy‑to‑use framework for building web crawlers.

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