version 0.5.9 and 0.5.10 on pypi are distributed as .whl files without `setup.py`

[blueness]

I've been maintaining SchemaObject and SchemaSync for Gentoo for years. However, the last two release have dropped setuptools for pip/wheel. This causes havoc with our package management system (aka portage). I understand that in the python world, pip is popular, but would it be possible to reinstate setup.py so I can still use setuptools? Its not so much the wheel format (which is just a .zip file) as the lack of setup.py which is the problem.