打印键 - 值对在python

Question

我怎么能在这种情况下打印键 - 值对：

a = [ 
{"name": "Tom", "age": 10}, 
{"name": "Mark", "age": 5}, 
{"name": "Pam", "age": 7} 
] 

search_name = 'Tom' 

for i in a: 
    for key in i: 
     if (i[key] == search_name): 
      print (item for item in a).next() 
     else: 
      print 'No Name' 

我不希望看到“没有名字”消息

Answer 1

更干净的方式来实现这将是：

for dic in a: 
    name = dic.get('name') # will return None if dic has no `name` key 
    if name and name == search_name: 
     print dic 
    else: 
     print 'No Name' 

但无论如何，如果不wan't看到No Name则根本不打印。

Answer 2

当然你会看到它。您遍历字典键（for key in i），当您尝试将i["age"]与search_name匹配时，它将显示No Name。

Answer 3

尝试

for dict in a: 
    if search_name in dict.values(): 
     print dict 
    else: 
     print "No name"