Use f-strings for string formatting 
CONTRIBUTOR
Hi, I would be glad to help with this. Is there anyone else working on it?
2021-11-12T18:15:34Z
https://github.com/huggingface/datasets/issues/3257#issuecomment-967319246
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CONTRIBUTOR
Hi, I would be glad to work on this too.
2021-11-12T22:14:24Z
https://github.com/huggingface/datasets/issues/3257#issuecomment-967680615
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CONTRIBUTOR
#self-assign
2021-11-13T16:54:00Z
https://github.com/huggingface/datasets/issues/3257#issuecomment-968099255
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COLLABORATOR
Hi @Carlosbogo,

would you be interested in replacing the `.format` and `%` syntax with f-strings in the modules in the `datasets` directory since @Mehdi2402 has opened a PR that does that for all the other directories?
2021-11-17T15:29:18Z
https://github.com/huggingface/datasets/issues/3257#issuecomment-971691231
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CONTRIBUTOR
Oh I see. I will be glad to help with the `datasets` directory then.
2021-11-17T15:38:05Z
https://github.com/huggingface/datasets/issues/3257#issuecomment-971699521
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f-strings offer better readability/performance than `str.format` and `%`, so we should use them in all places in our codebase unless there is good reason to keep the older syntax.

> **NOTE FOR CONTRIBUTORS**: To avoid large PRs and possible merge conflicts, do 1-3 modules per PR. Also, feel free to ignore the files located under `datasets/*`.