Django-raster allows you to create tiled map services (TMS) and raster map algebra end points for web maps. It is Python-based, and requires GeoDjango with a PostGIS backend.
Coverage decreased (-1.6%) to 90.123% when pulling b19b3dd94e0b8638bccc1e741a16a5b8b15d411a on jkeifer:patch-1 into 527520d193e3c09c70056f515fc88d3fb7b25b7a on geodesign:master.
Just saw and fixed a small typo in the docs. Thanks for the awesome project.