Reading JSON from a file

Question

I am getting a bit of headache just because a simple looking  easy statement is throwing some errors in my face   I have a json file called strings json like this    strings      -name    city     text    City      -name    phone     text    Phone                       -name    address     text    Address      I want to read the json file  just that for now  I have these statements which I found out  but it s not working   import json from pprint import pprint  with open  strings json   as json data      d   json loads json data      json data close       pprint d    The error displayed on the console was this   Traceback  most recent call last     File   home     android values manipulate json py   line 5  in  lt module gt      d   json loads json data    File   usr lib python2 7 json   init   py   line 326  in loads     return  default decoder decode s    File   usr lib python2 7 json decoder py   line 366  in decode     obj  end   self raw decode s  idx  w s  0  end    TypeError  expected string or buffer  Finished in 0 1s with exit code 1    Edited  Changed from json loads to json load  and got this   Traceback  most recent call last     File   home     android values manipulate json py   line 5  in  lt module gt      d   json load json data    File   usr lib python2 7 json   init   py   line 278  in load       kw    File   usr lib python2 7 json   init   py   line 326  in loads     return  default decoder decode s    File   usr lib python2 7 json decoder py   line 369  in decode     raise ValueError errmsg  Extra data   s  end  len s    ValueError  Extra data  line 829 column 1 - line 829 column 2  char 18476 - 18477   Finished in 0 1s with exit code 1

User · Answer

Here is a copy of code which works fine for me

import json

with open("test.json") as json_file:
    json_data = json.load(json_file)
    print(json_data)

with the data

{
    "a": [1,3,"asdf",true],
    "b": {
        "Hello": "world"
    }
}

you may want to wrap your json.load line with a try catch because invalid JSON will cause a stacktrace error message.

User · Answer

In python 3  we can use below method   Read from file and convert to JSON  import json from pprint import pprint    Considering  json list json  is a json file  with open  json list json   as fd       json data   json load fd       pprint json data    with statement automatically close the opened file descriptor      String to JSON  import json from pprint import pprint  json data   json loads    name     myName    age  24    pprint json data

User · Answer

You can use pandas library to read the JSON file   import pandas as pd df   pd read json  strings json  lines True  print df

User · Answer

To add on this  today you are able to use pandas to import json  https   pandas pydata org pandas-docs stable generated pandas read json html You may want to do a careful use of the orient parameter

User · Answer

The problem is using with statement   with open  strings json   as json data      d   json load json data      pprint d    The file is going to be implicitly closed already  There is no need to call json data close   again

User · Answer

The json load   method  without  s  in  load   can read a file directly   import json  with open  strings json   as f      d   json load f      print d    You were using the json loads   method  which is used for string arguments only    Edit  The new message is a totally different problem  In that case  there is some invalid json in that file  For that  I would recommend running the file through a json validator   There are also solutions for fixing json like for example How do I automatically fix an invalid JSON string

User · Answer

This works for me   json load   accepts file object  parses the JSON data  populates a Python dictionary with the data and returns it back to you   Suppose JSON file is like this         emp details                                        emp name   John                    emp emailId   john gmail com                                                             emp name   Aditya                     emp emailId   adityatest yahoo com                                           import json     Opening JSON file  f   open  data json        returns JSON object as     a dictionary  data   json load f      Iterating through the json    list  for i in data  emp details         print i      Closing file  f close     Output    emp name   John   emp emailId   john gmail com     emp name   Aditya   emp emailId   adityatest yahoo com

[python] Reading JSON from a file?

Examples related to python

Examples related to json