django-oscar

Oscar is an e-commerce framework for Django designed for building domain-driven sites. It is structured such that any part of the core functionality can be customised to suit the needs of your project. This allows a wide range of e-commerce requirements to be handled, from large-scale B2C sites to complex B2B sites rich in domain-specific business logic.

Further reading:

Official homepage
Sandbox site (automatically deployed via the official docker sandbox image)
Documentation on the excellent readthedocs.org
Docker image on http://hub.docker.com/
django-oscar group - mailing list for questions and announcements
django-oscar-jobs group - mailing list for job offers
Continuous integration homepage on travis-ci.org
Twitter account for news and updates

django-oscar on Freenode (community-run IRC channel) with public logs

Slack
PyPI page
Transifex project - translating Oscar made easy

Screenshots

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GitHub