What about https://github.com/GreatFruitOmsk/protobuf-py3 https://github.com/GreatFruitOmsk/protobuf-py3? I don't really see what could be non-trivial about Pr

What about https://github.com/GreatFruitOmsk/protobuf-py3 https://github.com/GreatFruitOmsk/protobuf-py3? I don't really see what could be non-trivial about Protocol Buffers. The encoding's simple to the extent one could probably hack a minimal working implementation over a weekend or another. That is, unless you need not the data format, but the very exact Google's library (which, to my tastes, is severely unpythonic and has an quite weird and bloated codebase - which is probably the issue with porting, but sadly is a dependency for some other libraries).