def __init__(self, modname, subname, classname, original_exception):
        Exception.__init__(self,
           "Unable to import %s class %s from package %s. Caused by %s"
           % (subname, classname, modname, str(original_exception))
        )
dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_library/src/rosbridge_library/internal/ros_loader.py/InvalidClassException.__init__/original