Python JSON

This chapter we will introduce how to use the Python language to encode and decode JSON objects.

Environment Configuration

Before using Python JSON encoding or decoding data, we need to first install JSON module. This tutorial we will download Demjson and installation:

$ tar xvfz demjson-1.6.tar.gz
$ cd demjson-1.6
$ python setup.py install

JSON Functions

encode

Python encode () function is used to encode Python object to a JSON string.

grammar

demjson.encode(self, obj, nest_level=0)

Examples

The following examples will be encoded as a JSON array data format:

#!/usr/bin/python
import demjson

data = [ { 'a' : 1, 'b' : 2, 'c' : 3, 'd' : 4, 'e' : 5 } ]

json = demjson.encode(data)
print json

The above code is executed as a result of:

[{"a":1,"b":2,"c":3,"d":4,"e":5}]

decode

Python can be used demjson.decode () function to decode JSON data. This function returns a Python data type field.

grammar

demjson.decode(self, txt)

Examples

The following example shows how to decode JSON objects Python:

#!/usr/bin/python
import demjson

json = '{"a":1,"b":2,"c":3,"d":4,"e":5}';

text = demjson.decode(json)
print  text

The above code is executed as a result of:

{u'a': 1, u'c': 3, u'b': 2, u'e': 5, u'd': 4}