helmo/github-issues huggingface dataset:
Can't load dataset
State: closed | Author: mskovalova (NONE)
Labels: name: bug

I'm trying to load a wikitext dataset

```
from datasets import load_dataset
raw_datasets = load_dataset("wikitext")
```

ValueError: Config name is missing.
Please pick one among the available configs: ['wikitext-103-raw-v1', 'wikitext-2-raw-v1', 'wikitext-103-v1', 'wikitext-2-v1']
Example of usage:
	`load_dataset('wikitext', 'wikitext-103-raw-v1')`.

If I try
```
from datasets import load_dataset
raw_datasets = load_dataset("wikitext-2-v1")
```

FileNotFoundError: Couldn't find file at https://raw.githubusercontent.com/huggingface/datasets/1.12.1/datasets/wikitext-2-v1/wikitext-2-v1.py

#### Environment info
<!-- You can run the command `datasets-cli env` and copy-and-paste its output below. -->
- `datasets` version: 1.12.1
- Platform: Linux-5.4.104+-x86_64-with-Ubuntu-18.04-bionic (colab)
- Python version: 3.7.12
- PyArrow version: 3.0.0


Comments: Hi @mskovalova, 

Some datasets have multiple configurations. Therefore, in order to load them, you have to specify both the *dataset name* and the *configuration name*.

In the error message you got, you have a usage example:
- To load the 'wikitext-103-raw-v1' configuration of the 'wikitext' dataset, you should use: 
  ```python
  load_dataset('wikitext', 'wikitext-103-raw-v1')
  ```

In your case, if you would like to load the 'wikitext-2-v1' configuration of the 'wikitext' dataset, please use:
```python
raw_datasets = load_dataset("wikitext", "wikitext-2-v1")
```

Hi, if I want to load the dataset from local file, then how to specify the configuration name?

> 嗨，如果我想从本地文件加载数据集，那么如何指定配置名称？

请问你知道怎么从本地加载了吗 谢谢

`raw_datasets = load_dataset("/local/path", "wikitext-2-v1", ...)`
I use datasets==2.18.0
masakhaner dataset load problem
State: closed | Author: huu4ontocord (CONTRIBUTOR)
Labels: name: bug

## Describe the bug
Masakhaner dataset is not loading

## Steps to reproduce the bug
```
from datasets import load_dataset
dataset = load_dataset("masakhaner",'amh')
```

## Expected results
Expected the return of a dataset

## Actual results

```

NonMatchingSplitsSizesError               Traceback (most recent call last)
<ipython-input-3-a6abc1161d4c> in <module>()
      1 from datasets import load_dataset
      2 
----> 3 dataset = load_dataset("masakhaner",'amh')



3 frames
/usr/local/lib/python3.7/dist-packages/datasets/utils/info_utils.py
 in verify_splits(expected_splits, recorded_splits)
     72     ]
     73     if len(bad_splits) > 0:
---> 74         raise NonMatchingSplitsSizesError(str(bad_splits))
     75     logger.info("All the splits matched successfully.")
     76 

NonMatchingSplitsSizesError: [{'expected': SplitInfo(name='train', num_bytes=639927, num_examples=1751, dataset_name='masakhaner'), 'recorded': SplitInfo(name='train', num_bytes=639911, num_examples=1750, dataset_name='masakhaner')}, {'expected': SplitInfo(name='validation', num_bytes=92768, num_examples=251, dataset_name='masakhaner'), 'recorded': SplitInfo(name='validation', num_bytes=92753, num_examples=250, dataset_name='masakhaner')}, {'expected': SplitInfo(name='test', num_bytes=184286, num_examples=501, dataset_name='masakhaner'), 'recorded': SplitInfo(name='test', num_bytes=184271, num_examples=500, dataset_name='masakhaner')}]
```

## Environment info
Google Colab


Comments: Thanks for reporting, @ontocord. We are fixing the wrong metadata.
Magnet’s
State: closed | Author: rcacho172 (NONE)
Labels: name: dataset request

## Adding a Dataset
- **Name:** *name of the dataset*
- **Description:** *short description of the dataset (or link to social media or blog post)*
- **Paper:** *link to the dataset paper if available*
- **Data:** *link to the Github repository or current dataset location*
- **Motivation:** *what are some good reasons to have this dataset*

Instructions to add a new dataset can be found [here](https://github.com/huggingface/datasets/blob/master/ADD_NEW_DATASET.md).
medical-dialog error
State: closed | Author: smeyerhot (NONE)
Labels: name: bug

## Describe the bug
A clear and concise description of what the bug is.
When I attempt to download the huggingface datatset medical_dialog it errors out midway through
## Steps to reproduce the bug
```python
raw_datasets = load_dataset("medical_dialog", "en", split="train", download_mode="force_redownload", data_dir="./Medical-Dialogue-Dataset-English")
```

## Expected results
A clear and concise description of the expected results.
No error
## Actual results

```
3 frames
/usr/local/lib/python3.7/dist-packages/datasets/utils/info_utils.py in verify_splits(expected_splits, recorded_splits)
     72     ]
     73     if len(bad_splits) > 0:
---> 74         raise NonMatchingSplitsSizesError(str(bad_splits))
     75     logger.info("All the splits matched successfully.")
     76 

NonMatchingSplitsSizesError: [{'expected': SplitInfo(name='train', num_bytes=0, num_examples=0, dataset_name='medical_dialog'), 'recorded': SplitInfo(name='train', num_bytes=295097913, num_examples=229674, dataset_name='medical_dialog')}]
```
Specify the actual results or traceback.

## Environment info
<!-- You can run the command `datasets-cli env` and copy-and-paste its output below. -->
- `datasets` version: 1.21.1
- Platform: colab
- Python version: colab 3.7
- PyArrow version: N/A


Comments: Hi @smeyerhot, thanks for reporting.

You are right: there is an issue with the dataset metadata. I'm fixing it.

In the meantime, you can circumvent the issue by passing `ignore_verifications=True`:
```python
raw_datasets = load_dataset("medical_dialog", "en", split="train", download_mode="force_redownload", data_dir="./Medical-Dialogue-Dataset-English", ignore_verifications=True)
```

Hi @albertvillanova -- I see you made changes to the wikitext dataset a few hours ago.
I'm getting an error similar to the one here : https://github.com/huggingface/datasets/issues/215
After your changes. 

I deleted the original dataset cache after encountering that error and then rerun with the following command :

`traindata = load_dataset('wikitext', 'wikitext-2-raw-v1', split='train', ignore_verifications=True, download_mode='force_redownload')
    testdata = load_dataset('wikitext', 'wikitext-2-raw-v1', split='test', ignore_verifications=True)`

But this is currently hanging.  Any ideas ? Thanks

@ldery, you can find the answer in the corresponding Discussion on the Hub: https://huggingface.co/datasets/wikitext/discussions/9

You need to update the `datasets` library:
```shell
pip install -U datasets
```
Adding vision-and-language datasets (e.g., VQA, VCR) to Datasets
State: closed | Author: WadeYin9712 (NONE)
Labels: name: enhancement

**Is your feature request related to a problem? Please describe.**
Would you like to add any vision-and-language datasets (e.g., VQA, VCR) to Huggingface Datasets?

**Describe the solution you'd like**
N/A

**Describe alternatives you've considered**
N/A

**Additional context**
This is Da Yin at UCLA. Recently, we have published an EMNLP 2021 paper about geo-diverse visual commonsense reasoning (https://arxiv.org/abs/2109.06860). We propose a new dataset called GD-VCR, a vision-and-language dataset to evaluate how well V&L models perform on scenarios involving geo-location-specific commonsense. We hope to have our V&L dataset incorporated into Huggingface to further promote our project, but I haven't seen much V&L datasets in the current package. Is it  possible to add V&L datasets, and if so, how should we prepare for the loading? Thank you very much!
Invalid download URL of WMT17 `zh-en` data 
State: closed | Author: Ririkoo (NONE)
Labels: name: bug

name: dataset bug

## Describe the bug
Partial data (wmt17 zh-en) cannot be downloaded due to an invalid URL.

## Steps to reproduce the bug
```python
from datasets import load_dataset
 dataset = load_dataset('wmt17','zh-en')
```

## Expected results
ConnectionError: Couldn't reach ftp://cwmt-wmt:cwmt-wmt@datasets.nju.edu.cn/parallel/casia2015.zip

Comments: Fixed in the current release. Close this issue.
raise TypeError( TypeError: Provided `function` which is applied to all elements of table returns a variable of type <class 'list'>. Make sure provided `function` returns a variable of type `dict` to update the dataset or `None` if you are only interested in side effects.
State: closed | Author: keloemma (NONE)
Labels: name: bug

## Describe the bug
A clear and concise description of what the bug is.
I am trying to use Dataset to load my file in order to use Bert embeddings model baut when I finished loading using dataset and I want to pass to the tokenizer using the function map; I get the following error : raise TypeError(
TypeError: Provided `function` which is applied to all elements of table returns a variable of type <class 'list'>. Make sure provided `function` returns a variable of type `dict` to update the dataset or `None` if you are only interested in side effects.

I was able to load my file using dataset before but since this morning , I keep getting this erreor.
## Steps to reproduce the bug
```python
# Xtrain, ytrain, filename, len_labels = read_file_2(fic)
	# Xtrain, lge_size = get_flaubert_layer(Xtrain, path_to_model_lge)

	data_preprocessed = make_new_traindata(Xtrain)
	
	my_dict = {"verbatim": data_preprocessed[1], "label": ytrain} # lemme avec conjonction
	dataset = Dataset.from_dict(my_dict)
```

## Expected results
A clear and concise description of the expected results.

## Actual results
Specify the actual results or traceback.

## Environment info
<!-- You can run the command `datasets-cli env` and copy-and-paste its output below. -->
- `datasets` version:
- Platform:
- Python version:
- PyArrow version:
Enable splits during streaming the dataset
State: open | Author: merveenoyan (CONTRIBUTOR)
Labels: name: enhancement

## Describe the Problem

I'd like to stream only a specific percentage or part of the dataset. 
I want to do splitting when I'm streaming dataset as well.

## Solution
Enabling splits when `streaming = True` as well.
`e.g. dataset = load_dataset('dataset', split='train[:100]', streaming = True)`

## Alternatives
Below is the alternative of doing it.
`dataset = load_dataset("dataset", split='train', streaming = True).take(100)`
Added computer vision tasks
State: closed | Author: merveenoyan (CONTRIBUTOR)

Added various image processing/computer vision tasks.

Comments: Looks great, thanks ! If the 3d ones are really rare we can remove them for now.

And I can see that `object-detection` and `semantic-segmentation` are both task categories (top-level) and task ids (bottom-level). Maybe there's a way to group them and have less granularity for the task categories. For example `speech-processing` is a high level task category. What do you think ?

We can still update the list of tasks later if needed when we have more vision datasets


@lhoestq  @osanseviero I used the categories (there were main ones and subcategories) in the paperswithcode, I got rid of some of them that could be too granular. I can put it there if you'd like (I'll wait for your reply before committing it again)

We can ignore the ones that are too granular IMO. What we did for audio tasks is to have them all under "audio-processing". Maybe we can do the same here for now until we have more comprehensive tasks/applications ?

Following the discussion in (private) https://github.com/huggingface/moon-landing/issues/2020, what do you think of aligning the top level tasks list with the model tasks taxonomy ?

* Image Classification
* Object Detection
* Image Segmentation
* Text-to-Image
* Image-to-Text


I moved it to [a branch](https://github.com/huggingface/datasets/pull/3800) for ease.
MultiWOZ Dataset NonMatchingChecksumError
State: closed | Author: bradyneal (NONE)
Labels: name: bug

## Describe the bug
The checksums for the downloaded MultiWOZ dataset and source MultiWOZ dataset aren't matching.

## Steps to reproduce the bug
Both of the below dataset versions yield the checksum error:
```python
from datasets import load_dataset
dataset = load_dataset('multi_woz_v22', 'v2.2')
dataset = load_dataset('multi_woz_v22', 'v2.2_active_only')
```

## Expected results
For the above calls to `load_dataset` to work.

## Actual results
NonMatchingChecksumError. Traceback:
> Traceback (most recent call last):
  File "/Users/brady/anaconda3/envs/elysium/lib/python3.8/site-packages/IPython/core/interactiveshell.py", line 3441, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)
  File "<ipython-input-15-4e91280e112e>", line 1, in <module>
    dataset = load_dataset('multi_woz_v22', 'v2.2')
  File "/Users/brady/anaconda3/envs/elysium/lib/python3.8/site-packages/datasets/load.py", line 847, in load_dataset
    builder_instance.download_and_prepare(
  File "/Users/brady/anaconda3/envs/elysium/lib/python3.8/site-packages/datasets/builder.py", line 615, in download_and_prepare
    self._download_and_prepare(
  File "/Users/brady/anaconda3/envs/elysium/lib/python3.8/site-packages/datasets/builder.py", line 675, in _download_and_prepare
    verify_checksums(
  File "/Users/brady/anaconda3/envs/elysium/lib/python3.8/site-packages/datasets/utils/info_utils.py", line 40, in verify_checksums
    raise NonMatchingChecksumError(error_msg + str(bad_urls))
datasets.utils.info_utils.NonMatchingChecksumError: Checksums didn't match for dataset source files:
['https://github.com/budzianowski/multiwoz/raw/master/data/MultiWOZ_2.2/dialog_acts.json', 'https://github.com/budzianowski/multiwoz/raw/master/data/MultiWOZ_2.2/test/dialogues_001.json']

## Environment info
- `datasets` version: 1.11.0
- Platform: macOS-10.15.7-x86_64-i386-64bit
- Python version: 3.8.10
- PyArrow version: 5.0.0


Comments: Hi Brady! I met the similar issue, it stuck in the downloading stage instead of download anything, maybe it is broken. After I change the downloading from URLs to one url of the [Multiwoz project](https://github.com/budzianowski/multiwoz/archive/44f0f8479f11721831c5591b839ad78827da197b.zip) and use dirs to get separate files, the problems gone.
Cache problem in the `load_dataset` method for local compressed file(s)
State: open | Author: SaulLu (CONTRIBUTOR)
Labels: name: bug

## Describe the bug

Cache problem in the `load_dataset` method: when modifying a compressed file in a local folder `load_dataset` doesn't detect the change and load the previous version.

## Steps to reproduce the bug

To test it directly, I have prepared a [Google Colaboratory notebook](https://colab.research.google.com/drive/11Em_Amoc-aPGhSBIkSHU2AvEh24nVayy?usp=sharing) that shows this behavior. 

For this example, I have created a toy dataset at: https://huggingface.co/datasets/SaulLu/toy_struc_dataset

This dataset is composed of two versions: 
- v1 on commit `a6beb46` which has a single example `{'id': 1, 'value': {'tag': 'a', 'value': 1}}` in file `train.jsonl.gz`
- v2 on commit `e7935f4` (`main` head) which has a single example `{'attr': 1, 'id': 1, 'value': 'a'}` in file `train.jsonl.gz`

With a terminal, we can start to get the v1 version of the dataset
```bash
git lfs install
git clone https://huggingface.co/datasets/SaulLu/toy_struc_dataset
cd toy_struc_dataset
git checkout a6beb46
```
Then we can load it with python and look at the content:
```python
from datasets import load_dataset

path = "/content/toy_struc_dataset"
dataset = load_dataset(path, data_files={"train": "*.jsonl.gz"})
print(dataset["train"][0])
```
Output
```
{'id': 1, 'value': {'tag': 'a', 'value': 1}} # This is the example in v1
```

With a terminal, we can now start to get the v1 version of the dataset
```bash
git checkout main
```
Then we can load it with python and look at the content:
```python
from datasets import load_dataset

path = "/content/toy_struc_dataset"
dataset = load_dataset(path, data_files={"train": "*.jsonl.gz"})
print(dataset["train"][0])
```
Output
```
{'id': 1, 'value': {'tag': 'a', 'value': 1}} # This is the example in v1 (not v2)
```
## Expected results
The last output should have been 
```
{"id":1, "value": "a", "attr": 1} # This is the example in v2
```

## Ideas

As discussed offline with Quentin, if the cache hash was ever sensitive to changes in a compressed file we would probably not have the problem anymore.

This situation leads me to suggest 2 other features:
- to also have an `load_from_cache_file` argument in the "load_dataset" method
- to reorganize the cache so that we can delete the caches related to a dataset (cf issue #ToBeFilledSoon)

And thanks again for this great library :hugs: 

## Environment info
- `datasets` version: 1.12.1
- Platform: Linux-5.4.104+-x86_64-with-Ubuntu-18.04-bionic
- Python version: 3.7.12
- PyArrow version: 3.0.0


Comments: The problem is still present. 
One solution would be to add the `download_mode="force_redownload"` argument to load_dataset. 
However, doing so may lead to a `DatasetGenerationError: An error occurred while generating the dataset`. To mitigate, just do:
`rm -r ~/.cache/huggingface/datasets/*`
Update legacy Python image for CI tests in Linux
State: closed | Author: albertvillanova (MEMBER)

Instead of legacy, use next-generation convenience images, built from the ground up with CI, efficiency, and determinism in mind. Here are some of the highlights:

- Faster spin-up time - In Docker terminology, these next-gen images will generally have fewer and smaller layers. Using these new images will lead to faster image downloads when a build starts, and a higher likelihood that the image is already cached on the host.

- Improved reliability and stability - The existing legacy convenience images are rebuilt practically every day with potential changes from upstream that we cannot always test fast enough. This leads to frequent breaking changes, which is not the best environment for stable, deterministic builds. Next-gen images will only be rebuilt for security and critical-bugs, leading to more stable and deterministic images.

More info: https://circleci.com/docs/2.0/circleci-images

Comments: There is an exception when running `pip install .[tests]`:
```
Processing /home/circleci/datasets
Collecting numpy>=1.17 (from datasets==1.12.2.dev0)
  Downloading https://files.pythonhosted.org/packages/45/b2/6c7545bb7a38754d63048c7696804a0d947328125d81bf12beaa692c3ae3/numpy-1.19.5-cp36-cp36m-manylinux1_x86_64.whl (13.4MB)
    100% |████████████████████████████████| 13.4MB 3.9MB/s  eta 0:00:011

...

Collecting faiss-cpu (from datasets==1.12.2.dev0)
  Downloading https://files.pythonhosted.org/packages/87/91/bf8ea0d42733cbb04f98d3bf27808e4919ceb5ec71102e21119398a97237/faiss-cpu-1.7.1.post2.tar.gz (41kB)
    100% |████████████████████████████████| 51kB 30.9MB/s ta 0:00:01
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "/home/circleci/.pyenv/versions/3.6.14/lib/python3.6/site-packages/setuptools/sandbox.py", line 154, in save_modules
        yield saved
      File "/home/circleci/.pyenv/versions/3.6.14/lib/python3.6/site-packages/setuptools/sandbox.py", line 195, in setup_context
        yield
      File "/home/circleci/.pyenv/versions/3.6.14/lib/python3.6/site-packages/setuptools/sandbox.py", line 250, in run_setup
        _execfile(setup_script, ns)
      File "/home/circleci/.pyenv/versions/3.6.14/lib/python3.6/site-packages/setuptools/sandbox.py", line 45, in _execfile
        exec(code, globals, locals)
      File "/tmp/easy_install-1pop4blm/numpy-1.21.2/setup.py", line 34, in <module>
        method can be invoked.
    RuntimeError: Python version >= 3.7 required.
```

Apparently, `numpy-1.21.2` tries to be installed in the temporary directory `/tmp/easy_install-1pop4blm` instead of the downloaded `numpy-1.19.5` (requirement of `datasets`).

This is caused because `pip` downloads the `.tar.gz` (instead of the `.whl`) and tries to build it in a tmp dir.
Run tests in parallel
State: closed | Author: albertvillanova (MEMBER)

Run CI tests in parallel to speed up the test suite.

Speed up results:
- Linux: from `7m 30s` to `5m 32s`
- Windows: from `13m 52s` to `11m 10s`


Comments: There is a speed up in Windows machines:
- From `13m 52s` to `11m 10s`

In Linux machines, some workers crash with error message:
```
OSError: [Errno 12] Cannot allocate memory
```

There is also a speed up in Linux machines:
- From `7m 30s` to `5m 32s`
Trying to get in touch regarding a security issue
State: closed | Author: JamieSlome (NONE)

Hey there!

I'd like to report a security issue but cannot find contact instructions on your repository.

If not a hassle, might you kindly add a `SECURITY.md` file with an email, or another contact method? GitHub [recommends](https://docs.github.com/en/code-security/getting-started/adding-a-security-policy-to-your-repository) this best practice to ensure security issues are responsibly disclosed, and it would serve as a simple instruction for security researchers in the future.

Thank you for your consideration, and I look forward to hearing from you!

(cc @huntr-helper)

Comments: Hi @JamieSlome,

Thanks for reaching out. Yes, you are right: I'm opening a PR to add the `SECURITY.md` file and a contact method.

In the meantime, please feel free to report the security issue to: feedback@huggingface.co
Dummy labels no longer on by default in `to_tf_dataset`
State: closed | Author: Rocketknight1 (MEMBER)

After more experimentation, I think I have a way to do things that doesn't depend on adding `dummy_labels` - they were quite a hacky solution anyway!

Comments: @lhoestq Let me make sure we never need it, and if not then I'll remove it entirely in a follow-up PR.

Thanks ;) it will be less confusing and easier to maintain to not keep unused hacky features
Introduce web and wiki config in triviaqa dataset
State: closed | Author: shirte (CONTRIBUTOR)

The TriviaQA paper suggests that the two subsets (Wikipedia and Web)
should be treated differently. There are also different leaderboards
for the two sets on CodaLab. For that reason, introduce additional
builder configs in the trivia_qa dataset.

Comments: I just made the dummy data smaller :)
Once github refreshes the change I think we can merge !

Thank you so much for reviewing and accepting my pull request!! :)

I created these rather large dummy data sets to cover all different cases for the row structure. E.g. in the web configuration, it's possible that a row has evidence from wikipedia ("EntityPages") and the web ("SearchResults"). But it also might happen that either EntityPages or SearchResults is empty. Probably, I will add this thought to the dataset description in the future.

Ok I see ! Yes feel free to mention it in the dataset card, this can be useful.

For the dummy data though we can keep the small ones, as the tests are mainly about testing the parsing from the dataset script rather than the actual content of the dataset.
Don't use old, incompatible cache for the new `filter`
State: closed | Author: lhoestq (MEMBER)

#2836 changed `Dataset.filter` and the resulting data that are stored in the cache are different and incompatible with the ones of the previous `filter` implementation.

However the caching mechanism wasn't able to differentiate between the old and the new implementation of filter (only the method name was taken into account). 

This is an issue because anyone that update `datasets` and re-runs some code that uses `filter` would see an error, because the cache would try to load an incompatible `filter` result.

To fix this I added the notion of versioning for dataset transform in the caching mechanism, and bumped the version of the `filter` implementation to 2.0.0

This way the new `filter` outputs are now considered different from the old ones from the caching point of view.

This should fix #2943

cc @anton-l