URI Templates allow you to leave parts of a URI to be filled in by a client before the are used, e.g.:
See RFC6570 for more information.
This project contains the materials used to produce some of the pre-RFC drafts, as well as some accompanying code used to prove parts of the RFC.
Please join the W3C URI mailing list to participate in the discussions about URI Templates.
The Python implementation started here has been moved to a github project.
We also maintain a wiki page with a list of implementations of the URI Template spec.