Bug report

Bug description:

I noticed a regression in Python 3.13.0 alpha 6. Django LazySettings started to crash because _wrapper is no longer set to the empty sentinel. I bisected this regression to the c32dc47, so it's related with the recent changes in __dict__.

Django's LazySettings and LazyObject are quite tricky. I will try to provide a small reproducer later.

CPython versions tested on:

3.13

Operating systems tested on:

Linux