Update semi-heter.py

semi-heter.py

@@ -79,9 +79,9 @@ class semiHeter(datasets.GeneratorBasedBuilder):
         elif split in ['target']:
             with open(path_file, "r") as f:
                 file = json.load(f)
-                for x in file:
+                for i in range(len(file)):
                     yield i, {
-                        "content": x 
+                        "content": i 
                     }
         else:
             file = pd.read_csv(path_file)