New to the Python Toolboxes introduced in 10.1? Need a starting point for your scripts? This Python Toolbox will take any existing TBX file, including system toolboxes, and create a roughly equivalent PYT file that contains the same tools with the same parameters. This is not an 100% automated solution and will require a fair amount of intervention and editing after creation, but will be an excellent starting point and teaching tool for authoring your own PYT files.
I've put the source up on bitbucket and enabled issue tracking, so if you'd like to report a bug or follow the development of this tool please go there.