fix

Author: Pierre-Sassoulas

pylint/testutils/_primer/comparator.py

@@ -154,15 +154,19 @@ def from_json(
         main_data: PackageMessages
         pr_data: PackageMessages
         if batches is None:
-            main_data = _load_json(base_file)
-            pr_data = _load_json(new_file)
+            main_data = Comparator._load_json(base_file)
+            pr_data = Comparator._load_json(new_file)
         else:
             main_data = {}
             pr_data = {}
             for idx in range(batches):
                 suffix = f"batch{idx}"
-                main_data.update(_load_json(str(base_file).replace("BATCHIDX", suffix)))
-                pr_data.update(_load_json(str(new_file).replace("BATCHIDX", suffix)))
+                main_data.update(
+                    Comparator._load_json(str(base_file).replace("BATCHIDX", suffix))
+                )
+                pr_data.update(
+                    Comparator._load_json(str(new_file).replace("BATCHIDX", suffix))
+                )
         return Comparator(main_data, pr_data)
 
     def __iter__(self) -> Iterator[PackageDiff]:
@@ -189,8 +193,8 @@ def __iter__(self) -> Iterator[PackageDiff]:
                 continue
             yield package, final_missing, final_new, paired
 
-
-def _load_json(file_path: Path | str) -> PackageMessages:
-    with open(file_path, encoding="utf-8") as f:
-        result: PackageMessages = json.load(f)
-    return result
+    @staticmethod
+    def _load_json(file_path: Path | str) -> PackageMessages:
+        with open(file_path, encoding="utf-8") as f:
+            result: PackageMessages = json.load(f)
+        return result