Hi,
Yes, you can recompile. We chose Python 2.7 becouse it is more conveniant to build cross platform on MAC and Linux besides Windows from single source base. The easiest on Window. Download Python 3 source and rebuild. However you will have to tweak a few things. We had a working Python 3 build sometime back in development. If you decide to recompile please post here any open issues you encounter.
One thing to note is that the new version of ScopeFun software is in development. There will be changes in the software and besides other things we will switch to Lua as an embeded script language. The software will execute Lua scripts on captured frame, displayed frame, per sample ... etc.
Best Regards,
David