carrier is a BSD Licensed Python application for keeping a Warehouse instance and PyPI synchronized.
Carrier utilizes the xmlrpc and pubhubsubbub API of PyPI to keep a Warehouse instance up to date with PyPI. It can also utilize webhooks from Warehouse to propagate changes made in Warehouse to PyPI. It enables a clean separation of Warehouse and PyPI.
Carrier is part of the Crate project, a set of applications, tools, and libraries for creating, distributing, and installing Python packages in a secure, efficient, and reliable way.