Remove pathlib

cst-wikinews.py

@@ -17,7 +17,6 @@
 """CST Wikinews classification dataset."""
 
 import csv
-from pathlib import Path
 from typing import List, Tuple, Dict, Generator
 
 import datasets
@@ -85,7 +84,7 @@ class CSTWikinews(datasets.GeneratorBasedBuilder):
     def _generate_examples(
         self, filepath: str
     ) -> Generator[Tuple[int, Dict[str, str]], None, None]:
-        with Path(filepath, encoding="utf-8").open() as csv_file:
+        with open(filepath, mode="r", encoding="utf-8") as csv_file:
             csv_reader = csv.reader(
                 csv_file,
                 delimiter=",",