Make the gettext functions accept a localedir of type Traversable

Feature or enhancement

Proposal:

from gettext import bindtextdomain, find, translation
import importlib.resources

bindtextdomain("demo-zipapp", importlib.resources.files("demo_zipapp").joinpath("locales"))
translation("demo-zipapp", importlib.resources.files("demo_zipapp").joinpath("locales"))
find("demo-zipapp", importlib.resources.files("demo_zipapp").joinpath("locales"))

In ZipApp, since files within the application cannot be read directly through traditional file APIs, it is necessary to use importlib.resources.files to read them.

importlib.resources.files returns a Traversable object, which is not supported by gettext.

Here is a demo app: demo-zipapp.zip (source) | demo-zipapp.zip (zipapp)

Has this already been discussed elsewhere?

I have already discussed this feature proposal on Discourse

Links to previous discussion of this feature:

https://discuss.python.org/t/make-the-gettext-functions-accept-a-localedir-of-type-traversable/107330

Linked PRs

• gh-149810

從 gettext.bindtextdomain、gettext.translation 和 gettext.find 這些進入點開始，接著檢視連結的 PR gh-149810 以及所引用的 Discourse 討論。當這些函式能接受用於 ZipApp 內資源的 Traversable localedir，且對示範用法有涵蓋時，這項變更就完成了。