Update sci_lay.py

sci_lay.py

@@ -2,8 +2,7 @@
 
 import gzip
 import json
-import os    
-import pyarrow as pa
+import os
 
 import datasets
 
@@ -141,11 +140,11 @@ class SciLay(datasets.GeneratorBasedBuilder):
 
     def _generate_examples(self, paths=None):
         """Yields examples."""
-        for path in paths:
-            with pa.RecordBatchFileReader(path) as reader:
-                for record_batch in reader:
-                    for row in record_batch:
-                        json_obj = json.loads(row.to_pybytes())
+        for paths_per_journal in paths:
+            for path in paths_per_journal:
+                with open(path, "rb") as fin:
+                    for row in fin:
+                        json_obj = json.loads(row)
                         yield json_obj["doi"], {
                             _DOI: json_obj[_DOI],
                             _PMCID: json_obj[_PMCID],
@@ -155,5 +154,4 @@ class SciLay(datasets.GeneratorBasedBuilder):
                             _TOPICS: json_obj[_TOPICS],
                             _KEYWORDS: json_obj[_KEYWORDS]
                         }
-
-
+