ImportError: cannot import name 'WEIGHTS_NAME' from 'pytorch_pretrained_bert.file_utils'
I just tried to run `run_squad.py` example and I got this error:

```
Traceback (most recent call last):
  File "run_squad.py", line 37, in <module>
    from pytorch_pretrained_bert.file_utils import PYTORCH_PRETRAINED_BERT_CACHE, WEIGHTS_NAME, CONFIG_NAME
ImportError: cannot import name 'WEIGHTS_NAME' from 'pytorch_pretrained_bert.file_utils' (/mnt/Data/miniconda3/lib/python3.7/site-packages/pytorch_pretrained_bert/file_utils.py)
```
Same is happening for `run_classifier.py` <|||||>Yes the examples currently require to install from source (see the section in the readme).
I'll release a new version tomorrow so the pip release will be in sync with `master` examples again.<|||||>Okay, thank you :)<|||||>Waiting for this; installing from source gives the error : `ImportError: cannot import name 'warmup_linear'`<|||||>> Waiting for this; installing from source gives the error : `ImportError: cannot import name 'warmup_linear'`

It is not actually using `warmup_linear` so you can safely remove that from the file <|||||>Ok, I've just published and uploaded the new v0.6.2 release on pip which should fix this (among other things). Release notes are [here](https://github.com/huggingface/pytorch-pretrained-BERT/releases/tag/v0.6.2).