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python - ValueError: Expected object or value when reading json as pandas dataframe

Sample data:

{
   "_id": "OzE5vaa3p7",
   "categories": [
      {
         "__type": "Pointer",
         "className": "Category",
         "objectId": "nebCwWd2Fr"
      }
   ],
   "isActive": true,
   "imageUrl": "https://firebasestorage.googleapis.com/v0/b/shopgro-1376.appspot.com/o/Barcode%20Data%20Upload%28II%29%2FAnil_puttu_flour_500g.png?alt=media&token=9cf63197-0925-4360-a31a-4675f4f46ae2",
   "barcode": "8908001921015",
   "isFmcg": true,
   "itemName": "Anil puttu flour 500g",
   "mrp": 58,
   "_created_at": "2016-10-02T13:49:03.281Z",
   "_updated_at": "2017-02-22T08:48:09.548Z"
}

{
   "_id": "ENPCL8ph1p",
   "categories": [
      {
         "__type": "Pointer",
         "className": "Category",
         "objectId": "B4nZeUHmVK"
      }
   ],
   "isActive": true,
   "imageUrl": "https://firebasestorage.googleapis.com/v0/b/kirananearby-9eaa8.appspot.com/o/Barcode%20data%20upload%2FYippee_Magic_Masala_Noodles,_70_g.png?alt=media&token=d9e47bd7-f847-4d6f-9460-4be8dbcaae00",
   "barcode": "8901725181222",
   "isFmcg": true,
   "itemName": "Yippee Magic Masala Noodles, 70 G",
   "mrp": 12,
   "_created_at": "2016-10-02T13:49:03.284Z",
   "_updated_at": "2017-02-22T08:48:09.074Z"
}

I tried:

import pandas as pd
data= pd.read_json('Data.json')

getting error ValueError: Expected object or value

also

import json
with open('gdb.json') as datafile:
    data = json.load(datafile)
retail = pd.DataFrame(data)

error: json.decoder.JSONDecodeError: Extra data: line 2 column 1 (char 509)

with open('gdb.json') as datafile:
for line in datafile:
    data = json.loads(line)
retail = pd.DataFrame(data)

error: json.decoder.JSONDecodeError: Extra data: line 1 column 577 (char 576)

How to read this json into pandas

See Question&Answers more detail:os

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1 Reply

0 votes
by (71.8m points)

I got the same error, read the function documentation and play around with different parameters.

I solved it by using the one below,

data= pd.read_json('Data.json', lines=True)

you can try out other things like

data= pd.read_json('Data.json', lines=True, orient='records')

data= pd.read_json('Data.json', orient=str)


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