Import Error in Kaggle notebook
This looks like an issue with PyArrow. Did you try reinstalling it ? @lhoestq I did, and then let pip handle the installation in `pip import datasets`. I also tried using conda but it gives the same error.

Edit: pyarrow version on kaggle is 4.0.0, it gets replaced with 4.0.1. So, I don't think uninstalling will change anything.
```
Install Trace of datasets:

Collecting datasets
  Downloading datasets-1.9.0-py3-none-any.whl (262 kB)
     |████████████████████████████████| 262 kB 834 kB/s eta 0:00:01
Requirement already satisfied: dill in /opt/conda/lib/python3.7/site-packages (from datasets) (0.3.4)
Collecting pyarrow!=4.0.0,>=1.0.0
  Downloading pyarrow-4.0.1-cp37-cp37m-manylinux2014_x86_64.whl (21.8 MB)
     |████████████████████████████████| 21.8 MB 6.2 MB/s eta 0:00:01
Requirement already satisfied: importlib-metadata in /opt/conda/lib/python3.7/site-packages (from datasets) (3.4.0)
Requirement already satisfied: huggingface-hub<0.1.0 in /opt/conda/lib/python3.7/site-packages (from datasets) (0.0.8)
Requirement already satisfied: pandas in /opt/conda/lib/python3.7/site-packages (from datasets) (1.2.4)
Requirement already satisfied: requests>=2.19.0 in /opt/conda/lib/python3.7/site-packages (from datasets) (2.25.1)
Requirement already satisfied: fsspec>=2021.05.0 in /opt/conda/lib/python3.7/site-packages (from datasets) (2021.6.1)
Requirement already satisfied: multiprocess in /opt/conda/lib/python3.7/site-packages (from datasets) (0.70.12.2)
Requirement already satisfied: packaging in /opt/conda/lib/python3.7/site-packages (from datasets) (20.9)
Collecting xxhash
  Downloading xxhash-2.0.2-cp37-cp37m-manylinux2010_x86_64.whl (243 kB)
     |████████████████████████████████| 243 kB 23.7 MB/s eta 0:00:01
Requirement already satisfied: numpy>=1.17 in /opt/conda/lib/python3.7/site-packages (from datasets) (1.19.5)
Requirement already satisfied: tqdm>=4.27 in /opt/conda/lib/python3.7/site-packages (from datasets) (4.61.1)
Requirement already satisfied: filelock in /opt/conda/lib/python3.7/site-packages (from huggingface-hub<0.1.0->datasets) (3.0.12)
Requirement already satisfied: urllib3<1.27,>=1.21.1 in /opt/conda/lib/python3.7/site-packages (from requests>=2.19.0->datasets) (1.26.5)
Requirement already satisfied: idna<3,>=2.5 in /opt/conda/lib/python3.7/site-packages (from requests>=2.19.0->datasets) (2.10)
Requirement already satisfied: certifi>=2017.4.17 in /opt/conda/lib/python3.7/site-packages (from requests>=2.19.0->datasets) (2021.5.30)
Requirement already satisfied: chardet<5,>=3.0.2 in /opt/conda/lib/python3.7/site-packages (from requests>=2.19.0->datasets) (4.0.0)
Requirement already satisfied: typing-extensions>=3.6.4 in /opt/conda/lib/python3.7/site-packages (from importlib-metadata->datasets) (3.7.4.3)
Requirement already satisfied: zipp>=0.5 in /opt/conda/lib/python3.7/site-packages (from importlib-metadata->datasets) (3.4.1)
Requirement already satisfied: pyparsing>=2.0.2 in /opt/conda/lib/python3.7/site-packages (from packaging->datasets) (2.4.7)
Requirement already satisfied: python-dateutil>=2.7.3 in /opt/conda/lib/python3.7/site-packages (from pandas->datasets) (2.8.1)
Requirement already satisfied: pytz>=2017.3 in /opt/conda/lib/python3.7/site-packages (from pandas->datasets) (2021.1)
Requirement already satisfied: six>=1.5 in /opt/conda/lib/python3.7/site-packages (from python-dateutil>=2.7.3->pandas->datasets) (1.15.0)
Installing collected packages: xxhash, pyarrow, datasets
  Attempting uninstall: pyarrow
    Found existing installation: pyarrow 4.0.0
    Uninstalling pyarrow-4.0.0:
      Successfully uninstalled pyarrow-4.0.0
Successfully installed datasets-1.9.0 pyarrow-4.0.1 xxhash-2.0.2
WARNING: Running pip as root will break packages and permissions. You should install packages reliably by using venv: https://pip.pypa.io/warnings/venv
``` You may need to restart your kaggle notebook after installing a newer version of `pyarrow`.

If it doesn't work we'll probably have to create an issue on [arrow's JIRA](https://issues.apache.org/jira/projects/ARROW/issues/), and maybe ask kaggle why it could fail > You may need to restart your kaggle notebook before after installing a newer version of `pyarrow`.
> 
> If it doesn't work we'll probably have to create an issue on [arrow's JIRA](https://issues.apache.org/jira/projects/ARROW/issues/), and maybe ask kaggle why it could fail

It works after restarting.
My bad, I forgot to restart the notebook. Sorry for the trouble!
## Describe the bug
Not able to import datasets library in kaggle notebooks

## Steps to reproduce the bug
```python
!pip install datasets
import datasets
```

## Expected results
No such error

## Actual results
```
ImportError                               Traceback (most recent call last)
<ipython-input-9-652e886d387f> in <module>
----> 1 import datasets

/opt/conda/lib/python3.7/site-packages/datasets/__init__.py in <module>
     31     )
     32 
---> 33 from .arrow_dataset import Dataset, concatenate_datasets
     34 from .arrow_reader import ArrowReader, ReadInstruction
     35 from .arrow_writer import ArrowWriter

/opt/conda/lib/python3.7/site-packages/datasets/arrow_dataset.py in <module>
     36 import pandas as pd
     37 import pyarrow as pa
---> 38 import pyarrow.compute as pc
     39 from multiprocess import Pool, RLock
     40 from tqdm.auto import tqdm

/opt/conda/lib/python3.7/site-packages/pyarrow/compute.py in <module>
     16 # under the License.
     17 
---> 18 from pyarrow._compute import (  # noqa
     19     Function,
     20     FunctionOptions,

ImportError: /opt/conda/lib/python3.7/site-packages/pyarrow/_compute.cpython-37m-x86_64-linux-gnu.so: undefined symbol: _ZNK5arrow7compute15KernelSignature8ToStringEv
```

## Environment info
<!-- You can run the command `datasets-cli env` and copy-and-paste its output below. -->
- `datasets` version: 1.9.0
- Platform: Kaggle
- Python version: 3.7.10
- PyArrow version: 4.0.1
