import bpy from sverchok.data_structure import zip_long_repeat ifc_files = {} class SvIfcCore: def process(self): sv_inputs_nested = [] for name in self.sv_input_names: sv_inputs_nested.append(self.inputs[name].sv_get()) for sv_input_nested in zip_long_repeat(*sv_inputs_nested): for sv_input in zip_long_repeat(*sv_input_nested): sv_input = list(sv_input) self.process_ifc(*sv_input)