What Is Plone?
Plone began life almost 20 years ago as a system for managing web content, written in Python and built on top of the Zope web framework. It has gone through many changes and is now an ecosystem of complementary open source applications, all focused on high end content management with unparalleled usability, security, customizability, accessibility, and multilingual support.
Welcome to the Plone Ecosystem
Plone
The original, open source, enterprise-grade, all-in-one content management system written in Python.