Working with JSON

JSON in Python

The json module converts between Python dicts/lists and JSON strings.

import json

# Python dict to JSON string
data = {"name": "Alice", "age": 30}
json_str = json.dumps(data)
print(json_str)

Parsing JSON

Use json.loads() to parse a JSON string back to Python objects.

import json
json_str = '{"x": 1, "y": 2}'
data = json.loads(json_str)
print(data["x"])

Try it yourself

Run the example below. Edit it and see what changes.

import json
data = {"lang": "Python", "version": 3}
print(json.dumps(data))
 

Common mistakes

• ⚠JSON requires double quotes for strings — single quotes cause errors.
• ⚠Confusing dumps/loads (strings) with dump/load (files).