id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
6897	Convert more old-style classes to new-style classes	Brodie Rao	nobody	"I see long ago, in #2109, someone went through and replaced all usage of old-style classes with new-style classes. It seems there are still old-style classes being defined, so I've gone through and updated those as well.

One thing to note: `db.backends.mysql_old.base.MysqlDebugWrapper` has `__getattr__` defined, but the function assumes that `__getattr__` is called for attributes that already exist, which isn't the case. I've removed the code that looks up existing attributes, since it would never be executed in the first place.

There are also some old-style classes in the copied-over `test._doctest` module, which I didn't touch."	Cleanup/optimization	closed	Uncategorized	dev	Normal	worksforme			Accepted	1	0	0	1	0	0