Python JSON

Python JSON

JSON is a syntax for storing and exchanging data. JSON is text, written with JavaScript object notation. Python has a built-in package called json, which can be used to work with JSON data.

Parse JSON - Convert from JSON to Python

If you have a JSON string, you can parse it by using the json.loads() method:

import json

# some JSON:
x =  '{"name":"John", "age":30, "city":"New York"}'

# parse x:
y = json.loads(x)

# the result is a Python dictionary:
print(y["age"])

Convert from Python to JSON

If you have a Python object, you can convert it into a JSON string by using the json.dumps() method:

import json

# a Python object (dict):
x = {
  "name": "John",
  "age": 30,
  "city": "New York"
}

# convert into JSON:
y = json.dumps(x)

# the result is a JSON string:
print(y)

Format the Result

The JSON string above is not very readable. Use the indent parameter to define the numbers of indents:

import json

x = {
  "name": "John",
  "age": 30,
  "city": "New York"
}

print(json.dumps(x, indent=4))