Update v-lol-trains.py

v-lol-trains.py

@@ -6,7 +6,6 @@ import json
 
 import datasets
 from datasets.tasks import ImageClassification
-from sklearn.model_selection import train_test_split
 
 _CITATION = """
 @misc{helff2023vlol,
@@ -159,6 +158,7 @@ class vloltrains(datasets.GeneratorBasedBuilder):
         if self.config.metadata_urls['test'] is None:
             image_dir, y, images = self.get_data(dl_manager, self.config.metadata_urls['train'])
             image_dir_train, image_dir_test = image_dir, image_dir
+            from sklearn.model_selection import train_test_split
             y_train, y_test, images_train, images_test = train_test_split(y, images, test_size=0.2, random_state=0)
         else:
             image_dir_train, y_train, images_train = self.get_data(dl_manager, self.config.metadata_urls['train'])