Package rouge-score cannot be imported

[albertvillanova]

Describe the bug

After the today release of rouge_score-0.0.7 it seems no longer importable. Our CI fails: https://github.com/huggingface/datasets/runs/7463218591?check_suite_focus=true

FAILED tests/test_dataset_common.py::LocalDatasetTest::test_builder_class_bigbench
FAILED tests/test_dataset_common.py::LocalDatasetTest::test_builder_configs_bigbench
FAILED tests/test_dataset_common.py::LocalDatasetTest::test_load_dataset_bigbench
FAILED tests/test_metric_common.py::LocalMetricTest::test_load_metric_rouge

with errors:

>   from rouge_score import rouge_scorer
E   ModuleNotFoundError: No module named 'rouge_score'

E           ImportError: To be able to use rouge, you need to install the following dependency: rouge_score.
E           Please install it using 'pip install rouge_score' for instance'

[albertvillanova]

We have added a comment on an existing issue opened in their repo: google-research/google-research#1212 (comment)

• rouge-score==0.0.7 google-research/google-research#1212