How can I initialize userSetup for Mayapy / Sub process?

[I73]

I am trying to run a subprocess with mayapy and I am failing to import a module because I have a path that is set at run time by userSetup.py. The question is how can I load a 'userSetup.py' while running a process? 

[I73]

I asked too soon, I am now passing my actual module to the sub process and importing that when initialized. If there is a better practice I would be interested in hearing it, 

Thanks!