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
32528	Replace django.utils.topological_sort with graphlib.	Nick Pope	Nick Pope	"In Python 3.9 we have a new standard library module, [https://docs.python.org/3/library/graphlib.html graphlib], that includes a topological sort implementation.
Let's use this instead of our custom implementation in `django.utils.topological_sort`.

~~This will require a backport for Python 3.8, the minimum supported version for Django 4.0, but when support for Python 3.8 is removed we can simply drop the backport. When using Python 3.9+ we'll just use the module direct from the standard library.~~"	Cleanup/optimization	closed	Utilities	dev	Normal	fixed	backport, graphlib, toposort, topological sort		Ready for checkin	1	0	0	0	0	0