How to correctly render strings in templates?

Question

Python

How to correctly implement the removal of lines in templates? Let's say for multilingualism. I have a tools module with goodies used in the project. Nearby are files for languages ​​with constants, such as
HELLO = "Привет". Tools has a get_message function that accepts a string constant name, scope, and language.
While I see the following option - class methods return, for example tools.get_message("HELLO", {}, "ru"). Next, the get_message function tries to get this constant from the file via getattr and formats it via format_map() with the scope passed to the function.
But this looks like a perversion, are there any other alternative and logical options? And if I need to execute a function in this line?
It is desirable that this works quickly, and not like a Template.
At the same time, I am not interested in the translation itself, which gettext does, but in the approach to storing and processing such string data.

Answer 1

What exactly did you not like about gettext ? This is the de facto standard for translations, strings are stored in human-readable .po files.