python中store函数运行总是错误，是程序少了一部分吗？

Question

def store(data,full_name):names=full_name.split()if len(names)==2:names.insert(1,'')labels=['first','middle','last']for label.name in zip(labels.names):people=lookup(data,label,name)if people:people.append(full_name)else:data[label][name]=[full_name]为什么运行的时候总是说label、init未定义等一系列错误，求指导