Deprecated since 3.7. This ABC is deprecated in favour of supporting resource loading through importlib.resources.abc.TraversableResources. This class exists for backwards compatibility only with other ABCs in this module.
Abstract base class for loaders which can return data from their
back-end storage to facilitate reading data to perform an import.
This ABC represents one of the optional protocols specified by PEP 302.
For directly loading resources, use TraversableResources instead. This class
primarily exists for backwards compatibility with other ABCs in this module.