# Error in HuggingFaceTrainer v2.4.0

**URL:** <https://discuss.ray.io/t/error-in-huggingfacetrainer-v2-4-0/10888>\
**Category:** Ray Train\
**Created:** [June 2, 2023, 4:44pm UTC](https://discuss.ray.io/t/error-in-huggingfacetrainer-v2-4-0/10888 "2023-06-02T16:44:50Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![MichaelAzmy](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ray.io/michaelazmy/32/4631_2.png) [@MichaelAzmy](https://discuss.ray.io/u/MichaelAzmy)\
**Post date:** [June 2, 2023, 4:44pm UTC](https://discuss.ray.io/t/error-in-huggingfacetrainer-v2-4-0/10888/1 "2023-06-02T16:44:51Z")

</div>

I am trying to train a model using HF Transformer integration with Ray.

I created Torch datasets then created Ray datasets out of them as follows:

```auto
ray_train_ds = ray.data.from_torch(train_dataset)
ray_evaluation_ds = ray.data.from_torch(test_dataset)

```

Then I created the wrapper function `trainer_init_per_worker` and passed it.

```auto

scaling_config = ScalingConfig(num_workers=1, use_gpu=use_gpu)
trainer = HuggingFaceTrainer(
    trainer_init_per_worker=trainer_init_per_worker,
    scaling_config=scaling_config,
    datasets={"train": ray_train_ds, "evaluation": ray_evaluation_ds},
)
result = trainer.fit()

```

I then face the following error.

```auto
  File "/usr/local/lib/python3.8/site-packages/ray/train/huggingface/_huggingface_utils.py", line 75, in __iter__
    yield (0, {k: v for k, v in row.as_pydict().items()})
AttributeError: 'dict' object has no attribute 'as_pydict'

```

I did debug and found that in the current master branch, `HuggingFaceTrainer` is changed to subclass `TransformersTrainer` and that the line producing the error was also changed from `yield (0, {k: v for k, v in row.as_pydict().items()})` to `yield (0, {k: v for k, v in row.items()})`, maybe it was a bug to begin with? but how were people training already? Anyone can help understand what’s happening?

For reference that’s the line of code in [v2.4.0](https://github.com/ray-project/ray/blob/releases/2.4.0/python/ray/train/huggingface/_huggingface_utils.py#L75) that is producing errors and that’s how it is changed in [master branch](https://github.com/ray-project/ray/blob/2aa1d99614bf9bc4fbc03320d832d9e8d7492efd/python/ray/train/huggingface/transformers/_transformers_utils.py#L82)