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Substance D


Substance D is an application server built using the Pyramid web framework. It can be used as a base to build a general-purpose web application like a blog, a shopping cart application, a scheduling application, or any other web app that requires both an administration and a retail interface.

Substance D owes much of its spirit to the Zope application server.

It requires Python 2.6, 2.7, 3.2, 3.3, or 3.4.


See Installation.

Demonstration Application

See the application running at for a demonstration of the Substance D management interface.

Support / Reporting Bugs / Development Versions

Visit to download development or tagged versions.

Visit to report bugs.

The mailing list exists at

The IRC channel is at irc://