Update imagenette.py

imagenette.py

@@ -139,17 +139,18 @@ class Imagenette(datasets.GeneratorBasedBuilder):
         """Returns SplitGenerators."""
         print(self.__dict__.keys())
         print(self.config)
+        name = self.config.name
+        dirname = _NAME_TO_DIR[name]
+
                 
         # Download the ref:label map for imagenet
-        path = dl_manager.download_and_extract(url)
         refs_path = dl_manager.download(_URL_IMAGENET_REFS)
         with open(refs_path) as f:
             self.ref_to_label = json.load(f)
             
            
-        name = self.config.name
-        dirname = _NAME_TO_DIR[name]
         url = _URL_PREFIX + "{}.tgz".format(dirname)
+        path = dl_manager.download_and_extract(url)
         train_path = os.path.join(path, dirname, "train")
         val_path = os.path.join(path, dirname, "val")
         assert os.path.exists(train_path)