What is JSON ?
                JSON stands for Javascript Object Notation. 
                It is a lightweight format used for storing and transferring data. 
                Python has a built-in package called json, which can be used to work with JSON data.

Data Conversion :

JSONPython
objectdict
arraylist
stringstr
numberint / float
trueTrue
falseFalse
nullNone

Converting Python Object -> JSON :
                       json.dumps( ) converts python data into JSON String.
Python 
import json student = { "name": "Rahul", "age": 22, "is_student": True } json_data = json.dumps(student) print(json_data) #output {"name": "Rahul", "age": 22, "is_student": true}

Converting JSON -> Python Object :
                      json.loads( ) converts JSON string into Python object. 
Python 
data = '{"name": "Rahul", "age": 22}' student = json.loads(data) print(student) print(type(student)) #output {'name': 'Rahul', 'age': 22} <class 'dict'>

Reading JSON from a File :
Python 
import json with open("data.json") as file: data = json.load(file) print(data)

Writing JSON to a File :
Python 
import json student = { "name": "Rahul", "age": 22, "city": "Chennai" } with open("student.json", "w") as file: json.dump(student, file, indent=4)

FunctionPurpose
json.dumps()Convert Python → JSON string
json.loads()Convert JSON string → Python
json.dump()Write JSON to file
json.load()Read JSON from file