Python descriptor protocol support for correct attribute injection
Hi,

I use peewee ORM with python [dependency injection framework](https://github.com/ivankorobkov/python-inject) for database instance injection. But peewee does not implement Python descriptor protocol on class attributes access, so it does not work in conjunction with DI.

I described this problem including code examples and exception traceback to the author of the DI framework, and he said that it's peewee concern.

ivankorobkov/python-inject#49

Can you implement it? Or maybe there are other workarounds?