Update openwebtext_split.py

openwebtext_split.py

@@ -55,7 +55,11 @@ def custom_iter_archive(path_or_buf, _filter=lambda x: True):
             if not file_path.endswith('xz'):
                 continue
             file_obj = stream.extractfile(tarinfo)
-            yield file_path, file_obj
+            inner_stream = tarfile.open(file_obj=file_obj, mode="r|*")
+            for j, xzinfo in enumerate(inner_stream):
+                if not xzinfo.name.endswith('txt'):
+                    continue
+                yield xzinfo.name, inner_stream.extractfile(xzinfo)
             stream.members = []
         del stream
     if hasattr(path_or_buf, "read"):