[Solved] Consider this Python code:import json json_str = '{"valid": true, "items": [1, 2, 3]}' obj = json.loads(json_str) print(len(obj["items"]))What is the output? | Python

Python - Structured Data Files

Consider this Python code:

import json
json_str = '{"valid": true, "items": [1, 2, 3]}'
obj = json.loads(json_str)
print(len(obj["items"]))

What is the output?

A1

Btrue

CError: invalid JSON

D3

Step-by-Step Solution

Solution:

Step 1: Parse JSON string into Python object
json.loads converts JSON string to Python dict; boolean true becomes True in Python.
Step 2: Access the list and get its length
obj["items"] is the list [1, 2, 3], so len(...) returns 3.
Final Answer:
3 -> Option D
Quick Check:
Length of list in JSON = 3 [OK]

Quick Trick: JSON true becomes Python True; lists keep length [OK]

Common Mistakes:

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