打印鍵 - 值對在python

Question

我怎麼能在這種情況下打印鍵 - 值對：

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「沒有名字」消息

Answer 1

更乾淨的方式來實現這將是：

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' 

但無論如何，如果不wan't看到No Name則根本不打印。

Answer 2

當然你會看到它。您遍歷字典鍵（for key in i），當您嘗試將i["age"]與search_name匹配時，它將顯示No Name。

Answer 3

嘗試

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