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[doc] fix invalid env vars (#6504) 

- remove invalid `ENV_` prefix.
- add a few ':' while at it
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Stas Bekman 2020-08-16 20:11:40 -07:00 committed by GitHub
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8
docs/source/installation.md
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@ -22,13 +22,13 @@ When TensorFlow 2.0 and/or PyTorch has been installed, 🤗 Transformers can be
pip install transformers
```
Alternatively, for CPU-support only, you can install 🤗 Transformers and PyTorch in one line with
Alternatively, for CPU-support only, you can install 🤗 Transformers and PyTorch in one line with:
```bash
pip install transformers[torch]
```
or 🤗 Transformers and TensorFlow 2.0 in one line with
or 🤗 Transformers and TensorFlow 2.0 in one line with:
```bash
pip install transformers[tf-cpu]
@ -73,8 +73,8 @@ This library provides pretrained models that will be downloaded and cached local
folder given by the shell environment variable ``TRANSFORMERS_CACHE``. The default value for it will be the PyTorch
cache home followed by ``/transformers/`` (even if you don't have PyTorch installed). This is (by order of priority):
* shell environment variable ``ENV_TORCH_HOME``
* shell environment variable ``ENV_XDG_CACHE_HOME`` + ``/torch/``
* shell environment variable ``TORCH_HOME``
* shell environment variable ``XDG_CACHE_HOME`` + ``/torch/``
* default: ``~/.cache/torch/``
So if you don't have any specific environment variable set, the cache directory will be at