Update openwebtext_split.py

openwebtext_split.py

@@ -19,7 +19,7 @@ import os
 import re
 from itertools import chain
 import tarfile
-import io
+import lzma
 
 import datasets
 
@@ -40,6 +40,7 @@ An open-source replication of the WebText dataset from OpenAI.
 _URL = "https://zenodo.org/record/3834942/files/openwebtext.tar.xz"
 
 def custom_iter_archive(path_or_buf, _filter=lambda x: True):
+    decompressor = lzma.LZMADecompressor()
     def _iter_archive(f):
         stream = tarfile.open(fileobj=f, mode="r|*")
         for i, tarinfo in enumerate(stream):
@@ -56,10 +57,10 @@ def custom_iter_archive(path_or_buf, _filter=lambda x: True):
             if not file_path.endswith('xz'):
                 continue
             file_obj = stream.extractfile(tarinfo)
-            print(file_obj.getmembers())
+            decompressed_file = decompressor.decompress(file_obj)
+            print(type(decompressed_file))
             for j, xzinfo in enumerate(file_obj):
-                f = io.BytesIO(xzinfo)
-                yield f
+                yield j
             stream.members = []
         del stream
     if hasattr(path_or_buf, "read"):