Failed# class Failed(*args, **kwargs)[source]# Bases: object An empty class to represent a failed object loading. Not for use by the user. New in version 3.1.0: combined Failed and UniversalFailed classes New in version 3.2.0: added isempty() check Methods __call__(*args, **kwargs)[source]# Call self as a function. isempty()[source]# Check wether anything at all loaded