json

Convert Python objects ? JSON (json.dumps, json.dump)
Convert JSON ? Python objects (json.loads, json.load)
Handle nested structures (dicts, lists, numbers, strings, booleans)
Support custom encoding/decoding via hooks

import json 

data = {"name": "Russell", "skills": ["Python", "C#", "Excel"]} 

# Python ? JSON string 
s = json.dumps(data) 
print(s) 

# JSON string ? Python 
obj = json.loads(s) 
print(obj) 

import json 

data = {"name" : "David", "age": 30} 
with open("data.json", "w") as f: 
   json.dump(data, f) 

with open("data.json") as f: 
   print(json.load(f))