fixing variale name

parallel_data.py

@@ -97,9 +97,9 @@ class MaCoCu_parallel(datasets.GeneratorBasedBuilder):
         data_file = dl_manager.download_and_extract({"data_file": path})
         return [datasets.SplitGenerator(name=datasets.Split.TRAIN, gen_kwargs=data_file)]
 
-    def _generate_examples(self, filepath):
+    def _generate_examples(self, data_file):
         """Yields examples."""
-        with open(filepath, encoding="utf-8") as f:
+        with open(data_file, encoding="utf-8") as f:
             reader = csv.reader(f, delimiter="\t", quotechar='"')
             for id_, row in enumerate(reader):
                 if id_ == 0: