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
23376	Inconsistent documentation about required Storage methods	Jaap Roes	James Brewer	"https://docs.djangoproject.com/en/dev/howto/custom-file-storage/ mentions the following:


> [...] but you **must** implement the following methods:
> * Storage.delete()
> * Storage.exists()
> * Storage.listdir()
> * Storage.size()
> * Storage.url()


Yet https://docs.djangoproject.com/en/dev/ref/files/storage/#the-storage-class says that `delete`, `listdir`, `size` and `url` may raise `NotImplementedError`. Which is it?"	Cleanup/optimization	closed	Documentation	dev	Normal	fixed	custom storage documentation, afraid-to-commit		Ready for checkin	1	0	0	0	1	0