python json dict iterate {key: value} 是一样的
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python json dict iterate {key: value} are the same
提问by callingconvention
i have a json file I am reading in; looks similar to:
我有一个正在阅读的 json 文件；看起来类似于：
[
{
"Destination_IP": "8.8.4.4",
"ID": 0,
"Packet": 105277
},
{
"Destination_IP": "9.9.4.4",
"ID": 0,
"Packet": 105278
}
]
when i parse the json via:
当我通过以下方式解析 json 时：
for json_dict in data:
for key,value in json_dict.iteritems():
print("key: {0} | value: {0}".format(key, value))
I am getting:
我正进入（状态：
key: Destination_IP | value: Destination_IP
I have tried using .items()and I have tried just iterating over the keys via iterkeys()and keys()to no avail.
我已经尝试使用.items()，我已经通过尝试过遍历键iterkeys()和keys()无济于事。
I can call it direct via json_dict['Destination_IP']and the value returns.
我可以直接通过调用它，json_dict['Destination_IP']然后返回值。
for json_dict in data:
if 'Destination_IP' in json_dict.keys():
print json_dict['Destination_IP']
returns:
返回：
key: Destination_IP | value: 8.8.4.4
I'm on python 2.7, so any help in running down the value portion would be greatly appreciated.
我在 python 2.7 上，所以任何帮助减少价值部分将不胜感激。
采纳答案by M.javid
Change your string formats index:
更改您的字符串格式索引：
for json_dict in data:
for key,value in json_dict.iteritems():
print("key: {0} | value: {1}".format(key, value))
Or without using index:
或者不使用索引：
for json_dict in data:
for key,value in json_dict.iteritems():
print("key: {} | value: {}".format(key, value))
Also you can using names instead of index:
您也可以使用名称而不是索引：
for json_dict in data:
for key,value in json_dict.iteritems():
print("key: {key} | value: {value}".format(key=key, value=value))
Update: In python3.6 and later, f-string feature added that allow programmers to make formatted string easiest, a f-string work same as template engine that starting by fprefix and string body come after, and variables and other dynamic things must determine between {}signs, same as below:
更新：在python3.6及更高版本中，增加了f-string功能，允许程序员最简单地格式化字符串，f-string的工作方式与模板引擎相同，以f前缀和字符串主体开始，变量和其他动态事物必须确定{}标志之间，下同：
print(f'key: A | value: {json_dict["A"]}')
>>> key: A | value: X
回答by ozgur
You don't need to specify an index at all:
您根本不需要指定索引：
for key, value in json_dict.iteritems():
print("key: {} | value: {}".format(key, value))
