Update demo2.py

demo2.py

@@ -127,6 +127,10 @@ class DemoDataset(datasets.GeneratorBasedBuilder):
         with open(filepath, encoding="utf-8") as f:
             reader = csv.DictReader(f)
             for key, row in enumerate(reader):
+                    print(key)
+                    print(row["index"])
+                    print(row["text"])
+                    print(row["label"])
                     yield key, {
                         "index": row["index"],
                         "text": row["text"],