functools.cache is Python>=3.9

matthiask · matthiask · commit 5811bf9d3980 · 2022-05-17T09:15:29.000+02:00
diff --git a/feincms3_data/data.py b/feincms3_data/data.py
@@ -1,7 +1,7 @@
 import io
 import json
 from collections import defaultdict
-from functools import cache
+from functools import lru_cache
 from itertools import chain
 
 from django.apps import apps
@@ -144,7 +144,7 @@ def load_dump(data, *, progress=silence, ignorenonexistent=False):
 
 
 def pk_cache():
-    @cache
+    @lru_cache(maxsize=None)
     def pks(model):
         return set(model._default_manager.values_list("pk", flat=True))
 
