Can not init BertTokenizerFast
### System Info

Linux
python3.7
tokenizers                         0.12.1
transformers                       4.26.1
@ArthurZucker

### Who can help?

_No response_

### Information

- [ ] The official example scripts
- [X] My own modified scripts

### Tasks

- [ ] An officially supported task in the `examples` folder (such as GLUE/SQuAD, ...)
- [X] My own task or dataset (give details below)

### Reproduction

```
>>> from transformers import BertTokenizerFast
>>> BertTokenizerFast()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/anaconda3//python3.7/site-packages/transformers/utils/dummy_tokenizers_objects.py", line 31, in __init__
    requires_backends(self, ["tokenizers"])
  File "/home/anaconda3/python3.7/site-packages/transformers/utils/import_utils.py", line 935, in requires_backends
    raise ImportError("".join(failed))
ImportError: 
BertTokenizerFast requires the 珞 Tokenizers library but it was not found in your environment. You can install it with:

pip install tokenizers

In a notebook or a colab, you can install it by executing a cell with

!pip install tokenizers

```


### Expected behavior

work normally.
Not sure I understand, to use `TokenizerFast` you need the tokenizers llibrary. 
Either use:
```python
>>> from transformers import BertTokenizer
>>> BertTokenizer 
```
Or run `pip install tokenizers`. 
This is not an issue but expected.<|||||>What is the tokenizers llibrary? and how to install them? @ArthurZucker 
I have run `pip install tokenizers` to install tokenizers<|||||>The `tokenizers` library is available [here](https://github.com/huggingface/tokenizers), it implements the backend of fast tokenizers in rust. If it is installed you should be able to import without any issues! Make sure it was installed in the environment you are using. <|||||>@ArthurZucker 
```
[root@localhost home]# pip list |grep tokenizers
tokenizers                         0.13.2
```
```
[root@localhost home]# python -c "import tokenizers"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'tokenizers'
```
Why @ArthurZucker <|||||>Sorry , it looks like the problem of my conda env