[英]python: read json with pandas
我想获取以下json链接的时间戳,高,低,打开,关闭,但我只收到错误c harterror Noneresult [{u'indicators': {u'quote': [{u'high': [45.25,...
我的代码如下:
df = pd.read_json('https://query1.finance.yahoo.com/v7/finance/chart/CPN.BK?range=2y&interval=1d&indicators=quote&includeTimestamps=true')
output = df[['timestamp','open','high,'low','close']]
请指导如何将数据放入数据框
如果您使用pandas
从您的url read_json
,它将把所有json数据保存到一个单元格中(列chart
,行result
)。
根据您的代码,您必须为'timestamp','open','high,'low'
和'close'
提取字典数据,然后将它们传递给pandas DataFrame
:
import pandas as pd
df = pd.read_json('https://query1.finance.yahoo.com/v7/finance/chart/CPN.BK?range=2y&interval=1d&indicators=quote&includeTimestamps=true')
data = df['chart']['result'][0]
result = {'timestamp':data['timestamp'],
'open':data['indicators']['quote'][0]['open'],
'high':data['indicators']['quote'][0]['high'],
'low':data['indicators']['quote'][0]['low'],
'close':data['indicators']['quote'][0]['close']
}
df1 = pd.DataFrame(result, columns==['timestamp','open','high','low','close'])
df1
df1
将是:
timestamp open high low close
0 1442977200 44.50 45.25 44.25 45.00
1 1443063600 44.75 45.75 44.50 45.00
2 1443150000 44.75 45.00 44.25 44.50
3 1443409200 44.25 44.25 43.00 43.00
4 1443495600 42.50 44.50 42.25 44.00
5 1443582000 44.25 44.75 43.50 44.75
6 1443668400 44.50 45.00 44.25 45.00
7 1443754800 45.00 45.00 44.00 44.25
8 1444014000 44.25 44.75 43.75 44.50
...
或者,您可以从url加载json(请参阅此答案 ),然后提取字典数据( 'timestamp','open','high,'low' and 'close'
),并将其传递给pandas以生成结果数据框。
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