Plow is a workflow execution engine inspired by Makeflow. It features deps-aware execution, multi-process execution, incremental transition from imperative workflow execution with memo.py, and remote execution (with execnet gateway specification syntax).
Picasso is a high quality vector graphic rendering library. It supports paths, matrices, gradients, patterns, images, and TrueType fonts. It is like Cairo, GDI Plus, and Quartz2D. It is based on AGG for raster rendering.