fix(weibo.py): fix online dataviewer error

weibo.py

@@ -106,13 +106,15 @@ class WeiboNamedEntities(datasets.GeneratorBasedBuilder):
         ]
 
     def _generate_examples(self, filepath):
-        file  = pq.ParquetFile(filepath)
-        _id = -1
-        for i in file.iter_batches(batch_size=64):
-            rows = i.to_pylist()
-            for row in rows:
-                _id+=1
-                yield _id, row
+        # fix: https://discuss.huggingface.co/t/dataset-preview-error-with-a-dataset-script-and-parquet-files/43160
+        with open(filepath, "rb") as f:
+            with pq.ParquetFile(f) as file:
+                _id = -1
+                for i in file.iter_batches(batch_size=64):
+                    rows = i.to_pylist()
+                    for row in rows:
+                        _id+=1
+                        yield _id, row