Few days ago, I've started writing Odorik module to manipulate with API of one Czech mobile network operator. As usual, the code comes with documentation written in English. Given that vast majority of users are Czech, it sounds useful to have in Czech language as well.
The documentation itself is written in Sphinx and built using Read the Docs. Using those to translate the documentation is quite easy.
First step is to add necessary configuration to the Sphinx project as described in their Internationalization Quick Guide. It's matter of few configuration directives and invoking of sphinx-intl and the result can be like this commit.
Once the code in repository is ready, you can start building translated documentation on the Read the docs. There is nice guide for that as well. All you need to do is to create another project, set it's language and link it from master project as translation.
The last step is to find some translators to actually translate the document. For me the obvious choice was using Weblate, so the translation is now on Hosted Weblate. The mass import of several po files can be done by import_project management command.
And thanks to all these you can now read Czech documentation for python Odorik module.