Installing Raspbian is fundamentally impossible because it's made for the Raspberry Pi which is a different baord with an ARM processor. Omega2+ is a MIPS processor. Those are not binary compatible. Although since Raspbian is based on Debian, it could be possible..?
Anyway, since you say you only have Python code, which is by itself portable, your project should still work if you have all needed python libraries installed. If none of your dependencies depend on one particular architecture (ARM), it should work. What exact packages do you have problems installing?