What's the source of the information?

[xmontero]

Hi, Vincent, I wonder what's the data-source you used to compile your CSVs, or if you hand-compiled them from multiple sources, or if they were downloaded "as is" from somewhere?

[forxer]

They were taken from several sources but I do not remember which ones. And I did not notice that ... oops

But more generally this package is quite old and I have not maintained it.

I will note it as abandoned.

You would have to look at a still maintained package like for example: https://github.com/umpirsky/language-list