py3 - make cmp import backwards compatible
py3 - make cmp import backwards compatible

malthe/google-protobuf,openx/python3-protobuf,openx/python3-protobuf,malthe/google-protobuf,openx/python3-protobuf,openx/python3-protobuf,openx/python3-protobuf,malthe/google-protobuf,malthe/google-protobuf,malthe/google-protobuf