[Distutils] one project into several sub projects???

Greetings: I would like to know what would be the best way to handle this situation??? I have a project that needs to be split into several smaller pieces/ projects: 1) core 2) gui 3) cli 4) web Could you give me the best case scenario to split up this one project? It would be best if I used DU2 or Packaging... I need something that will be supported for as while to come... Our project will be moving into Python3 compatibility... -- Sincerely yours, Rob G. Healey