Some question about raw dataset download info in the project .
I am afraid that there is not a very straightforward way to get that location.

Another option, from _split_generators would be to use:
- `dl_manager._download_config.cache_dir` to get the directory where all the raw downloaded files are:
  ```python
  download_dir = dl_manager._download_config.cache_dir
  ```
- the function `datasets.utils.file_utils.hash_url_to_filename` to get the filenames of the raw downloaded files:
  ```python
  filenames = [hash_url_to_filename(url) for url in urls_to_download.values()]
  ```
Therefore the complete path to the raw downloaded files would be the join of both:
```python
downloaded_paths = [os.path.join(download_dir, filename) for filename in filenames]
```

Maybe it would be interesting to make these paths accessible more easily. I could work on this. What do you think, @lhoestq ?
Hi , i review the code in 
https://github.com/huggingface/datasets/blob/master/datasets/conll2003/conll2003.py
in the _split_generators function is the truly logic of download raw datasets with dl_manager
and use Conll2003 cls by use import_main_class in load_dataset function
My question is that , with this logic it seems that i can not have the raw dataset download location
in variable in downloaded_files in _split_generators.
If someone also want use huggingface datasets as raw dataset downloader,
how can he retrieve the raw dataset download path from attributes in 
datasets.dataset_dict.DatasetDict ?
Some question about raw dataset download info in the project . 
 Hi , i review the code in 
https://github.com/huggingface/datasets/blob/master/datasets/conll2003/conll2003.py
in the _split_generators function is the truly logic of download raw datasets with dl_manager
and use Conll2003 cls by use import_main_class in load_dataset function
My question is that , with this logic it seems that i can not have the raw dataset download location
in variable in downloaded_files in _split_generators.
If someone also want use huggingface datasets as raw dataset downloader,
how can he retrieve the raw dataset download path from attributes in 
datasets.dataset_dict.DatasetDict ? 
 I am afraid that there is not a very straightforward way to get that location.

Another option, from _split_generators would be to use:
- `dl_manager._download_config.cache_dir` to get the directory where all the raw downloaded files are:
  ```python
  download_dir = dl_manager._download_config.cache_dir
  ```
- the function `datasets.utils.file_utils.hash_url_to_filename` to get the filenames of the raw downloaded files:
  ```python
  filenames = [hash_url_to_filename(url) for url in urls_to_download.values()]
  ```
Therefore the complete path to the raw downloaded files would be the join of both:
```python
downloaded_paths = [os.path.join(download_dir, filename) for filename in filenames]
```

Maybe it would be interesting to make these paths accessible more easily. I could work on this. What do you think, @lhoestq ?