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Python | Sort JSON by value

Last Updated : 12 Feb, 2019

Let's see the different ways to sort the JSON data using Python.

JSON (JavaScript Object Notation) is a lightweight, text-based, language-independent data exchange format that is easy for humans and machines to read and write. JSON can represent two structured types: objects and arrays. An object is an unordered collection of zero or more name/value pairs. An array is an ordered sequence of zero or more values. The values can be strings, numbers, booleans, null, and these two structured types. The task is to sort the JSON first by

, then by

and then by

.

Sorting in Desc order

# Python code to demonstrate sorting in JSON.
import json

data='''{  
   "Student":[  
      {  
         "enrollment_no":"9915103000",
         "name":"JIIT",
         "subject":[  
            {  
               "code":"DBMS",
               "grade":"C"
            }
         ]
      },
      {  
         "enrollment_no":"8815103057",
         "name":"JSS",
         "subject":[  
            {  
               "code":"COA",
               "grade":"A"
            },
            {  
               "code":"CN",
               "grade":"A+"
            }
         ]
      }
   ]
}'''

# Parsing Json object
json_parse = json.loads(data)
 
# iterating 
for it in json_parse['Student']:
    for y in it['subject']:
        print(y['code'],y['grade'],it['enrollment_no'],it['name'])

DBMS C 9915103000 JIIT
COA A 8815103057 JSS
CN A+ 8815103057 JSS

By using External library such as Pandas (Sorting in Ascending order).

from pandas.io.json import json_normalize

df = json_normalize(json_parse['Student'],
                               'subject', 
                    ['enrollment_no', 'name'])

df.sort_values(['code', 'grade', 'enrollment_no']).reset_index(drop=True)

  code grade  enrollment_no      name
0  CN     A+  8815103057         JSS
1  COA    A  8815103057         JSS
2  DBMS   C  9915103000        JIIT

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