Now that the imp removal has landed on main, users migrating to Python3.12 will likely need help to move to importlib.
The current imp docs have tips on how to do just that. Great!

One caveat: the imp.load_source has been removed from the docs a long time ago, now it is only visible is the Python2 version of the docs. So users of imp.load_source cannot rely on the docs to help them migrate, and have to Google this. The first results on stackoverflow are a bit wrong:

• many point to SourceFileLoader(...).load_module(), but this is also deprecated and slated for removal in 3.12 (according to the warning)
• some solutions point to importlib.util.spec_from_file_location, but this does not work with files that do not end with ".py"

The solution that I think is the best translation:

def imp_load_source(module_name, module_path):
    loader = SourceFileLoader(module_name, module_path)
    module = types.ModuleType(loader.name)
    loader.exec_module(module)
    return module

I think it would be beneficial to have that kind of information in the docs. Unfortunately, imp.load_source is not officially documented, but there are several GitHub issues and SO threads discussing how to migrate code to importlib. IMO, we should do one of:

• add it back to the docs, with explanations on how to migrate it to importlib
• just document the migration in the release notes, in the section "Porting to Python 3.12"

What do you think?