def reset_label(self, new_label, part):
    old_label = self.label
    self.label = new_label
    if self.populated:
        self.ret_insts[0] = '{:8}{:<42}'.format(((part + str(self.label)) + ':'), self.ret_insts[0][8:])
        return (old_label, new_label)
    else:
        return None
def reset_label(self, new_label, part):
    old_label = self.label
    self.label = new_label
    if self.populated:
        self.ret_insts[0] = '{:8}{:<42}'.format(((part + str(self.label)) + ':'), self.ret_insts[0][8:])
        return (old_label, new_label)
    else:
        return None