Fix urls and import issue

oe_dataset.py

@@ -25,7 +25,8 @@ else:
 
 from typing import Optional, IO
 
-import datasets, itertools
+import datasets
+import itertools
 
 
 # ---- Constants ----
@@ -99,8 +100,8 @@ class OEDataset(datasets.GeneratorBasedBuilder):
         OEDatasetConfig(
             name = "photoreal",
             description = "Photorealistic synthetic images",
-            imgs_urls = ["https://huggingface.co/datasets/ABC-iRobotics/oe_dataset/blob/main/synthetic/photoreal/imgs"],
-            masks_urls = ["https://huggingface.co/datasets/ABC-iRobotics/oe_dataset/blob/main/synthetic/photoreal/masks"]
+            imgs_urls = ["https://huggingface.co/datasets/ABC-iRobotics/oe_dataset/resolve/main/synthetic/photoreal/imgs"],
+            masks_urls = ["https://huggingface.co/datasets/ABC-iRobotics/oe_dataset/resolve/main/synthetic/photoreal/masks"]
             ),
     ]