我有一个看起来像这样的python字典:
{
"hits": [
{
"_source": {
"network": "att",
"month": january,
"volume": "30",
"mass": 3,
}
},
{
"_source": {
"network": "vzn",
"month": june,
"volume": "10",
"mass": 2,
}
}
]
}
我想拿这本字典,把一些东西放在清单里。例如,我想获取所有元素的质量和体积,然后将它们放入列表格式,如下所示:
mass = [3,2]
volume = [30, 10]
我知道我可以创建一个循环并循环遍历json的每个元素,并将其添加到每个列表中,但是我想知道是否存在内置的或更优雅的方法。
答案 0 :(得分:1)
列表理解选项:
mass_list = 'mass:', [i['_source']['mass'] for i in d['hits']]
volume_list = 'volume:', [i['_source']['volume'] for i in d['hits']]
输出:
print(mass_list) # mass: [3, 2]
print(volume_list) # volume: ['30', '10']
答案 1 :(得分:0)
代码如下:
a={
"hits": [
{
"_source": {
"network": "att",
"month": 'january',
"volume": "30",
"mass": 3,
}
},
{
"_source": {
"network": "vzn",
"month": 'june',
"volume": "10",
"mass": 2,
}
}
]
}
a=a.items();
mass=[]
volume=[]
for value in a:
for k in value[1]:
k=list(k.items());
volume.append(k[0][1]['volume'])
mass.append(k[0][1]['mass'])
print(mass)
print(volume)