Update cartpole_gym_replay.py

cartpole_gym_replay.py

@@ -59,7 +59,7 @@ class DecisionTransformerGymDataset(datasets.GeneratorBasedBuilder):
         ]
     # method parameters are unpacked from `gen_kwargs` as given in `_split_generators`
     def _generate_examples(self, filepath, split):
-        with open(filepath, "rb") as f:
+        with open(filepath, "r") as f:
             #trajectories = pickle.load(f)
             traj = np.load(f)
             obs = traj["observations"]