When prompted, enter your token to login:

from huggingface_hub import notebook_login
notebook_login()

Load OPUS Books dataset
Start by loading the English-French subset of the OPUS Books dataset from the 🤗 Datasets library:

from datasets import load_dataset
books = load_dataset("opus_books", "en-fr")

Split the dataset into a train and test set with the [~datasets.Dataset.train_test_split] method:

books = books["train"].train_test_split(test_size=0.2)

Then take a look at an example:

books["train"][0]
{'id': '90560',
 'translation': {'en': 'But this lofty plateau measured only a few fathoms, and soon we reentered Our Element.