python基礎教程修訂版2 第四章問題求問

代碼如下
people={
'Alice':{
'phone':'2341',
'addr':'Foo drive 23'
},
'Beth':{
'phone':'9102',
'addr':'Bar street 42'
},
'Cecil':{
'phone':'3158',
'addr':'Baz avenue 90'
}
}
labels={
'phone':'phone number',
'addr':'address'
}

name=raw_input('Name:')

if request == 'p':key = 'phone'
if request == 'a':key = 'addr'

if name in people:
print("%s's %s is %s. " % \ (name, labels[key], people[name][key]))

我檢查了幾遍都沒有發現問題在哪裏，求大神指出