Question

我有一个API，其响应是json，如下所示：

page = requests.get('http://finance.sina.com.cn/chanjing/cyxw/2015-12-17/doc-ifxmttcn4893506.shtml')
print page.text
soup = BeautifulSoup(page.text)
soup.prettify()
print soup

如何编写一个python程序，它将为我提供密钥{ "a":1, "b":2, "c":[ { "d":4, "e":5, "f":{ "g":6 } } ] }。我试过的是：

['d','e','g']

Answer 1

仅返回不包含字典作为其值的键的函数。

jsonData = {
    "a": 1,
    "b": 2,
    "c": [{
        "d": 4,
        "e": 5,
        "f": {
            "g": 6
        }
    }]
}


def get_simple_keys(data):
    result = []
    for key in data.keys():
        if type(data[key]) != dict:
            result.append(key)
        else:
            result += get_simple_keys(data[key])
    return result

print get_simple_keys(jsonData['c'][0])

避免使用递归更改行result += get_simple_keys(data[key])到result += data[key].keys()

Answer 2

试试这个，

dct = {
    "a":1,
    "b":2,
    "c":[
         {
         "d":4,
         "e":5,
         "f":{
             "g":6
             }
         }
        ]
    }
k=dct["c"][0]
for key in k.keys(): 
    print key

从python中的json获取密钥

2 个答案: