grid-control is a versatile job submission tool for both local and grid jobs
It's modular, simple, small, extendable, coded in python while supporting parameterized and dataset based jobs
It routinely manages tasks with O(10,000) jobs, runs arbitrary scripts and has support for the CMS experiment software.
At one point, Open Hub analyzed source code for this project based on code location(s) available at that time. Since then, the code locations have been removed.