I'm not comfortable to add such wall of text just to update code using imp in What's New in Python 3.12. I'm not convinced that init_builtin() or load_dynamic() are commonly used. These functions are more like internal functions used by the imp.load_module() function.

Moreover, I'm not sure how find_module() was used with load_module() to load modules. Is the use case to specify a search path which is not in sys.path? Why not putting the path in sys.path and simply use importlib.import_module()?

But I still consider that imp.load_source() is different and remains a relevant use case on its own. So I proposed PR #105978 to just document a recipe to replace this one.