This is a small package that allows a repository containing only protobuf
definitions to be used in a Python project via pip install. Please see
python-protobuf-repo-examle
for a full example of a protobuf repo using this package; it boils down to
including the line
distutils.command.build.build.sub_commands.insert(0, ('protobuf-custom-build', None))
in your setup.py.