extensions/signals.py

@@ -23,7 +23,7 @@ def _log_extension_delete(sender: object, instance: object, **kwargs: object) ->
     # FIXME: remove this temporary sanity check:
     # this would break the assumption that admin deletion is "normal" deletion,
     # which we'd like to stick to.
-    if cannot_be_deleted_reasons != []:
+    if len(cannot_be_deleted_reasons) > 0:
         # This shouldn't happen: prior validation steps should have taken care of this.
         raise ValidationError({'__all__': cannot_be_deleted_reasons})
 

extensions/views/manage.py

@@ -185,7 +185,7 @@ class DeleteExtensionView(
             return False
         # Unless this extension cannot be deleted anymore
         cannot_be_deleted_reasons = obj.cannot_be_deleted_reasons
-        if cannot_be_deleted_reasons != []:
+        if len(cannot_be_deleted_reasons) > 0:
             return False
         return True