 run_summarization.py download datasets error
## Environment info
<!-- You can run the command `transformers-cli env` and copy-and-paste its output below.
     Don't forget to fill out the missing fields in that output! -->
- `transformers` version: 4.15.0
- Platform: Linux-5.4.144+-x86_64-with-Ubuntu-18.04-bionic
- Python version: 3.7.12
- PyTorch version (GPU?): 1.10.0+cu111 (False)
- Tensorflow version (GPU?): 2.7.0 (False)
- Flax version (CPU?/GPU?/TPU?): not installed (NA)
- Jax version: not installed
- JaxLib version: not installed
- Using GPU in script?: Y
- Using distributed or parallel set-up in script?: N

### Who can help
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@patrickvonplaten

## Information

Model I am using (Bert, XLNet ...): T5-small. 

The problem arises when using:
* [x] the official example script: The summarization example [run_summarization_no_trainer.py](https://github.com/huggingface/transformers/blob/master/examples/pytorch/summarization/run_summarization_no_trainer.py) throws an error when loading datasets. So does [run_summarization.py](https://github.com/huggingface/transformers/blob/master/examples/pytorch/summarization/run_summarization.py).

The tasks I am working on is:
* [x] an official summarization task: cnn_dailymail

## To reproduce

Steps to reproduce the behavior:

```bash
python run_summarization_no_trainer.py \
    --model_name_or_path t5-small \
    --dataset_name cnn_dailymail \
    --dataset_config "3.0.0" \
    --source_prefix "summarize: " \
    --output_dir ./tst-summarization
```

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## Expected behavior

```bash
---------------------------------------------------------------------------
NotADirectoryError                        Traceback (most recent call last)
<ipython-input-16-b3897e385817> in <module>()
    617 
    618 if __name__ == "__main__":
--> 619     main()

<ipython-input-16-b3897e385817> in main()
    343     if args.dataset_name is not None:
    344         # Downloading and loading a dataset from the hub.
--> 345         raw_datasets = load_dataset(args.dataset_name, args.dataset_config_name)
    346     else:
    347         data_files = {}

/usr/local/lib/python3.7/dist-packages/datasets/load.py in load_dataset(path, name, data_dir, data_files, split, cache_dir, features, download_config, download_mode, ignore_verifications, keep_in_memory, save_infos, revision, use_auth_token, task, streaming, script_version, **config_kwargs)
   1697         ignore_verifications=ignore_verifications,
   1698         try_from_hf_gcs=try_from_hf_gcs,
-> 1699         use_auth_token=use_auth_token,
   1700     )
   1701 

/usr/local/lib/python3.7/dist-packages/datasets/builder.py in download_and_prepare(self, download_config, download_mode, ignore_verifications, try_from_hf_gcs, dl_manager, base_path, use_auth_token, **download_and_prepare_kwargs)
    594                     if not downloaded_from_gcs:
    595                         self._download_and_prepare(
--> 596                             dl_manager=dl_manager, verify_infos=verify_infos, **download_and_prepare_kwargs
    597                         )
    598                     # Sync info

/usr/local/lib/python3.7/dist-packages/datasets/builder.py in _download_and_prepare(self, dl_manager, verify_infos, **prepare_split_kwargs)
    659         split_dict = SplitDict(dataset_name=self.name)
    660         split_generators_kwargs = self._make_split_generators_kwargs(prepare_split_kwargs)
--> 661         split_generators = self._split_generators(dl_manager, **split_generators_kwargs)
    662 
    663         # Checksums verification

/root/.cache/huggingface/modules/datasets_modules/datasets/cnn_dailymail/3cb851bf7cf5826e45d49db2863f627cba583cbc32342df7349dfe6c38060234/cnn_dailymail.py in _split_generators(self, dl_manager)
    253     def _split_generators(self, dl_manager):
    254         dl_paths = dl_manager.download_and_extract(_DL_URLS)
--> 255         train_files = _subset_filenames(dl_paths, datasets.Split.TRAIN)
    256         # Generate shared vocabulary
    257 

/root/.cache/huggingface/modules/datasets_modules/datasets/cnn_dailymail/3cb851bf7cf5826e45d49db2863f627cba583cbc32342df7349dfe6c38060234/cnn_dailymail.py in _subset_filenames(dl_paths, split)
    154     else:
    155         logger.fatal("Unsupported split: %s", split)
--> 156     cnn = _find_files(dl_paths, "cnn", urls)
    157     dm = _find_files(dl_paths, "dm", urls)
    158     return cnn + dm

/root/.cache/huggingface/modules/datasets_modules/datasets/cnn_dailymail/3cb851bf7cf5826e45d49db2863f627cba583cbc32342df7349dfe6c38060234/cnn_dailymail.py in _find_files(dl_paths, publisher, url_dict)
    133     else:
    134         logger.fatal("Unsupported publisher: %s", publisher)
--> 135     files = sorted(os.listdir(top_dir))
    136 
    137     ret_files = []

NotADirectoryError: [Errno 20] Not a directory: '/root/.cache/huggingface/datasets/downloads/1bc05d24fa6dda2468e83a73cf6dc207226e01e3c48a507ea716dc0421da583b/cnn/stories'
```

Check the cache path:
```bash
# the file exists, but not a directory
$ ls /root/.cache/huggingface/datasets/downloads/1bc05d24fa6dda2468e83a73cf6dc207226e01e3c48a507ea716dc0421da583b
/root/.cache/huggingface/datasets/downloads/1bc05d24fa6dda2468e83a73cf6dc207226e01e3c48a507ea716dc0421da583b

$ ls /root/.cache/huggingface/datasets/downloads/1bc05d24fa6dda2468e83a73cf6dc207226e01e3c48a507ea716dc0421da583b/
ls: cannot access '/root/.cache/huggingface/datasets/downloads/1bc05d24fa6dda2468e83a73cf6dc207226e01e3c48a507ea716dc0421da583b/': Not a directory

$ cat /root/.cache/huggingface/datasets/downloads/1bc05d24fa6dda2468e83a73cf6dc207226e01e3c48a507ea716dc0421da583b
<!DOCTYPE html><html><head><title>Google Drive - Quota exceeded</title><meta http-equiv="content-type" content="text/html; charset=utf-8"/><link href=&#47;static&#47;doclist&#47;client&#47;css&#47;2674426593&#45;untrustedcontent.css rel="stylesheet" nonce="pCgnLp5yR1/ZpQj0eTvLkg"><link rel="icon" href="//ssl.gstatic.com/images/branding/product/1x/drive_2020q4_32dp.png"/><style nonce="pCgnLp5yR1/ZpQj0eTvLkg">#gbar,#guser{font-size:13px;padding-top:0px !important;}#gbar{height:22px}#guser{padding-bottom:7px !important;text-align:right}.gbh,.gbd{border-top:1px solid #c9d7f1;font-size:1px}.gbh{height:0;position:absolute;top:24px;width:100%}@media all{.gb1{height:22px;margin-right:.5em;vertical-align:top}#gbar{float:left}}a.gb1,a.gb4{text-decoration:underline !important}a.gb1,a.gb4{color:#00c !important}.gbi .gb4{color:#dd8e27 !important}.gbf .gb4{color:#900 !important}
</style><script nonce="IYVNn9QbZ2QHAY59Th92mg"></script></head><body><div id=gbar><nobr><a target=_blank class=gb1 href="https://www.google.com/webhp?tab=ow">Search</a> <a target=_blank class=gb1 href="http://www.google.com/imghp?hl=en&tab=oi">Images</a> <a target=_blank class=gb1 href="https://maps.google.com/maps?hl=en&tab=ol">Maps</a> <a target=_blank class=gb1 href="https://play.google.com/?hl=en&tab=o8">Play</a> <a target=_blank class=gb1 href="https://www.youtube.com/?gl=US&tab=o1">YouTube</a> <a target=_blank class=gb1 href="https://news.google.com/?tab=on">News</a> <a target=_blank class=gb1 href="https://mail.google.com/mail/?tab=om">Gmail</a> <b class=gb1>Drive</b> <a target=_blank class=gb1 style="text-decoration:none" href="https://www.google.com/intl/en/about/products?tab=oh"><u>More</u> &raquo;</a></nobr></div><div id=guser width=100%><nobr><span id=gbn class=gbi></span><span id=gbf class=gbf></span><span id=gbe></span><a target="_self" href="/settings?hl=en_US" class=gb4>Settings</a> | <a target=_blank  href="//support.google.com/drive/?p=web_home&hl=en_US" class=gb4>Help</a> | <a target=_top id=gb_70 href="https://accounts.google.com/ServiceLogin?hl=en&passive=true&continue=https://drive.google.com/uc%3Fexport%3Ddownload%26id%3D0BwmD_VLjROrfTHk4NFg2SndKcjQ&service=writely&ec=GAZAMQ" class=gb4>Sign in</a></nobr></div><div class=gbh style=left:0></div><div class=gbh style=right:0></div><div class="uc-main"><div id="uc-text"><p class="uc-error-caption">Sorry, you can&#39;t view or download this file at this time.</p><p class="uc-error-subcaption">Too many users have viewed or downloaded this file recently. Please try accessing the file again later. If the file you are trying to access is particularly large or is shared with many people, it may take up to 24 hours to be able to view or download the file. If you still can't access a file after 24 hours, contact your domain administrator.</p></div></div><div class="uc-footer"><hr class="uc-footer-divider">&copy; 2022 Google - <a class="goog-link" href="//support.google.com/drive/?p=web_home">Help</a> - <a class="goog-link" href="//support.google.com/drive/bin/answer.py?hl=en_US&amp;answer=2450387">Privacy & Terms</a></div></body></html>
```

It seems that the script downloaded the web pages rather than the data file.
Hey @cyk1337, I cannot reproduce this error sadly. The code you provided:

```bash
python run_summarization_no_trainer.py \
    --model_name_or_path t5-small \
    --dataset_name cnn_dailymail \
    --dataset_config "3.0.0" \
    --source_prefix "summarize: " \
    --output_dir ./tst-summarization
```

works fine for me. Could you maybe try to empty your cache completely `rm -r ~/.cache/huggingface/datasets` and try again?<|||||>This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the [contributing guidelines](https://github.com/huggingface/transformers/blob/master/CONTRIBUTING.md) are likely to be ignored.<|||||>> Hey @cyk1337, I cannot reproduce this error sadly. The code you provided:
> 
> ```shell
> python run_summarization_no_trainer.py \
>     --model_name_or_path t5-small \
>     --dataset_name cnn_dailymail \
>     --dataset_config "3.0.0" \
>     --source_prefix "summarize: " \
>     --output_dir ./tst-summarization
> ```
> 
> works fine for me. Could you maybe try to empty your cache completely `rm -r ~/.cache/huggingface/datasets` and try again?

I have met the same question `"NotADirectoryError: [Errno 20] Not a directory: '/root/.cache/huggingface/datasets/downloads/1bc05d24fa6dda2468e83a73cf6dc207226e01e3c48a507ea716dc0421da583b/cnn/stories'"`

And I have tried to empty my cace using `rm -r ~/.cache/huggingface/datasets`, but it did not work.

When I replace dataset_name cnn_dailymail with xsum, it backs to normal.
