Update wikipedia-for-mask-filling.py

wikipedia-for-mask-filling.py

@@ -105,26 +105,30 @@ class WikipediaForMaskFilling(datasets.GeneratorBasedBuilder):
     def _split_generators(self, dl_manager):
         type = self.config.type
         size = self.config.size
-        urls_to_download = f"data/{type}_{size}.jsonl.xz"
-        downloaded_files = dl_manager.download_and_extract(urls_to_download)
+        filepath = dl_manager.download(f"data/{type}_{size}.jsonl.xz")
 
         return [
-            datasets.SplitGenerator(name='train', gen_kwargs={"filepath": downloaded_files}),
+            datasets.SplitGenerator(name='train', gen_kwargs={"filepath": filepath}),
         ]
 
     def _generate_examples(self, filepath):
         _id = 0
         print("using filepaths:")
         print(filepath)
-        with open(filepath, encoding="utf-8") as f:
-            try:
-                with xz.open(filepath) as f:
-                    for line in f:
-                        data = json.loads(line)
-                        yield _id, {
-                            "texts": data["texts"],
-                            "masks": data["masks"]
-                        }
-                        _id += 1
-            except Exception:
-                logger.exception("Error while processing file %s", filepath)
+        if filepath:
+            logger.info("Generating examples from = %s", filepath)
+                try:
+                    with xz.open(open(filepath,'rb'), 'rt', encoding='utf-8') as f:
+                        json_list = list(f)
+                    
+                    for json_str in json_list:
+                        example = json.loads(json_str)
+                        if example is not None and isinstance(example, dict):
+                            yield id_, {
+                                "texts": data["texts"],
+                                "masks": data["masks"]
+                            }
+                            id_ +=1
+
+                except Exception:
+                    logger.exception("Error while processing file %s", filepath)