读取JSON文件时出错

Question

我正在尝试使用pandas读取JSON文件.

import pandas as pd
df = pd.read_json('https://data.gov.in/node/305681/datastore/export/json')

我得到valueError.

ValueError: arrays must all be same length

其他一些JSON页面显示此错误:

ValueError: Mixing dicts with non-Series may lead to ambiguous ordering.

我怎么以某种方式阅读价值观？我并不特别关注数据有效性.

Answer 1

查看json它是有效的,但它嵌套了数据和字段:

import json
import requests

In [11]: d = json.loads(requests.get('https://data.gov.in/node/305681/datastore/export/json').text)

In [12]: list(d.keys())
Out[12]: ['data', 'fields']

您希望将数据作为内容,将字段作为列名称:

In [13]: pd.DataFrame(d["data"], columns=[x["label"] for x in d["fields"]])
Out[13]:
   S. No.                   States/UTs    2008-09    2009-10    2010-11    2011-12    2012-13
0       1               Andhra Pradesh  183446.36  193958.45  201277.09  212103.27  222973.83
1       2            Arunachal Pradesh      360.5     380.15     407.42        419     438.69
2       3                        Assam    4658.93    4671.22    4707.31       4705    4709.58
3       4                        Bihar   10740.43   11001.77    7446.08       7552    8371.86
4       5                 Chhattisgarh    9737.92   10520.01   12454.34   12984.44   13704.06
5       6                          Goa     148.61        148        149     149.45     457.87
6       7                      Gujarat   12675.35   12761.98   13269.23   14269.19   14558.39
7       8                      Haryana   38149.81   38453.06   39644.17   41141.91   42342.66
8       9             Himachal Pradesh      977.3    1000.26    1020.62    1049.66    1069.39
9      10            Jammu and Kashmir    7208.26    7242.01    7725.19     6519.8    6715.41
10     11                    Jharkhand    3994.77    3924.73    4153.16    4313.22    4238.95
11     12                    Karnataka   23687.61    29094.3   30674.18   34698.77   36773.33
12     13                       Kerala   15094.54   16329.52   16856.02   17048.89   22375.28
13     14               Madhya Pradesh     6712.6    7075.48    7577.23    7971.53    8710.78
14     15                  Maharashtra   35502.28   38640.12    42245.1   43860.99   45661.07
15     16                      Manipur    1105.25       1119    1137.05    1149.17    1162.19
16     17                    Meghalaya     994.52     999.47    1010.77    1021.14    1028.18
17     18                      Mizoram     411.14     370.92     387.32     349.33     352.02
18     19                     Nagaland     831.92      833.5     802.03     703.65     617.98
19     20                       Odisha   19940.15   23193.01   23570.78   23006.87   23229.84
20     21                       Punjab    36789.7   32828.13   35449.01      36030   37911.01
21     22                    Rajasthan    6449.17    6713.38    6696.92    9605.43    10334.9
22     23                       Sikkim     136.51     136.07     139.83     146.24        146
23     24                   Tamil Nadu   88097.59  108475.73  115137.14  118518.45  119333.55
24     25                      Tripura    1388.41    1442.39    1569.45       1650    1565.17
25     26                Uttar Pradesh    10139.8   10596.17   10990.72   16075.42   17073.67
26     27                  Uttarakhand    1961.81    2535.77    2613.81    2711.96    3079.14
27     28                  West Bengal    33055.7   36977.96   39939.32   43432.71   47114.91
28     29  Andaman and Nicobar Islands     617.58     657.44     671.78        780     741.32
29     30                   Chandigarh     272.88     248.53     180.06     180.56     170.27
30     31       Dadra and Nagar Haveli      70.66      70.71      70.28         73         73
31     32                Daman and Diu      18.83       18.9      18.81      19.67         20
32     33                        Delhi       1.17       1.17       1.17       1.23         NA
33     34                  Lakshadweep     134.64     138.22     137.98     139.86     139.99
34     35                   Puducherry     111.69     112.84     113.53        116     112.89

另请参阅json_normalize更复杂的json DataFrame提取.