Using two pythons in an application

[Allen]

I'm in the process of developing an application that will use Python for 
a scripting support.  In light of the upcoming changes to Python, I was 
wondering if it is possible to link to and use two different versions of 
  Python so that in the future, scripts could be migrated to the new 
version, and older scripts would still work as well.  If so are there 
any code examples of this.

Brian Vanderburg II