Replacing .format() and % by f-strings
{'login': 'Mehdi2402', 'id': 56029953, 'node_id': 'MDQ6VXNlcjU2MDI5OTUz', 'avatar_url': 'https://avatars.githubusercontent.com/u/56029953?v=4', 'gravatar_id': '', 'url': 'https://api.github.com/users/Mehdi2402', 'html_url': 'https://github.com/Mehdi2402', 'followers_url': 'https://api.github.com/users/Mehdi2402/followers', 'following_url': 'https://api.github.com/users/Mehdi2402/following{/other_user}', 'gists_url': 'https://api.github.com/users/Mehdi2402/gists{/gist_id}', 'starred_url': 'https://api.github.com/users/Mehdi2402/starred{/owner}{/repo}', 'subscriptions_url': 'https://api.github.com/users/Mehdi2402/subscriptions', 'organizations_url': 'https://api.github.com/users/Mehdi2402/orgs', 'repos_url': 'https://api.github.com/users/Mehdi2402/repos', 'events_url': 'https://api.github.com/users/Mehdi2402/events{/privacy}', 'received_events_url': 'https://api.github.com/users/Mehdi2402/received_events', 'type': 'User', 'site_admin': False}
[]
[]
Hi ! It looks like most of your changes are just `black` changes. All those changes are not necessary. In particular if you want to use `black`, please use the `make style` command instead. It runs `black` with additional parameters and you shouldn't end up with that many changes

Feel free to open a new PR that doesn't include all the unnecessary `black` changes that you have on your branch :) > Hi ! It looks like most of your changes are just `black` changes. All those changes are not necessary. In particular if you want to use `black`, please use the `make style` command instead. It runs `black` with additional parameters and you shouldn't end up with that many changes
> 
> Feel free to open a new PR that doesn't include all the unnecessary `black` changes that you have on your branch :)

Thank you for your answer :) , I will open a new PR with the correct changes. Hi @lhoestq, I submitted 3 commits in a new PR (#3277) where I did not apply black.

I can apply the ```make style``` command if asked. Cool thanks ! Yes feel free to make sure you have `black==21.4b0` and run `make style`
**Fix #3257**

Replaced _.format()_ and _%_ by f-strings in the following modules : 
- [x] **tests**
- [x] **metrics**
- [x] **benchmarks**
- [x] **utils**
- [x] **templates**

Will follow in the next PR the modules left : 
- [ ] **src**

Module **datasets** will not be edited as asked by @mariosasko 

PS : black and isort applied to files

{'url': 'https://api.github.com/repos/huggingface/datasets/issues/3267/reactions', 'total_count': 0, '+1': 0, '-1': 0, 'laugh': 0, 'hooray': 0, 'confused': 0, 'heart': 0, 'rocket': 0, 'eyes': 0}
{'url': 'https://api.github.com/repos/huggingface/datasets/pulls/3267', 'html_url': 'https://github.com/huggingface/datasets/pull/3267', 'diff_url': 'https://github.com/huggingface/datasets/pull/3267.diff', 'patch_url': 'https://github.com/huggingface/datasets/pull/3267.patch', 'merged_at': None}