[tadata]

The project is open-source and has a lot of users from all over. The code itself is in python so English of course. I was wondering if this is considered nice/inviting to have more than one language in README, or not really necessary..?

[yorwba]

If someone offers to contribute a README translation and to keep it updated with every change, you can consider merging it. It indicates that there are existing users who want to talk about the project in their native language. And that somebody could e.g. open an issue in that language to ask questions and get help.

But if there is no such community, a translated README on its own is pointless in my opinion.

[solardev]

I think yorwba said it best... if an organic community develops naturally around one language or another, cool, encourage it and make it easier for them however you can!

But no need to "fake it" with preemptive translations of your own (especially if you're going to do it automatically) if it's going to take time and effort away from other parts of the project. It's more important to have good and thorough documentation in ONE language rather than a barebones readme in ten.