[3.2.x] Fixed #32665 -- Fixed caches system check crash when STATICFILES_DIRS is a list of 2-tuples.

Thanks Jared Lockhart for the report.

Regression in c36075ac1dddfa986340b1a5e15fe48833322372.
Backport of 34d1905712d33e72c76b3a55a4fc24abbd11be6c from main

1 files changed, 5 insertions, 4 deletions

diff --git a/django/core/checks/caches.py b/django/core/checks/caches.py
index 4baa23aeb6..b755e0035a 100644
--- a/django/core/checks/caches.py
+++ b/django/core/checks/caches.py
@@ -27,10 +27,11 @@ def check_cache_location_not_exposed(app_configs, **kwargs):
         if not setting:
             continue
         if name == 'STATICFILES_DIRS':
-            paths = {
-                pathlib.Path(staticfiles_dir).resolve()
-                for staticfiles_dir in setting
-            }
+            paths = set()
+            for staticfiles_dir in setting:
+                if isinstance(staticfiles_dir, (list, tuple)):
+                    _, staticfiles_dir = staticfiles_dir
+                paths.add(pathlib.Path(staticfiles_dir).resolve())
         else:
             paths = {pathlib.Path(setting).resolve()}
         for alias in settings.CACHES: