Python Coding challenge - Day 732| What is the output of the following Python Code?

 

Code Explanation:

1. Import JSON module

import json

We import Python’s built-in json module.

This module allows us to encode (serialize) Python objects to JSON format and decode (deserialize) JSON back to Python objects.

2. Create a Python dictionary

data = {"x": 5, "y": 10}

Defines a dictionary data with two keys:

"x" → value 5

"y" → value 10.

Current dictionary:

{"x": 5, "y": 10}

3. Convert dictionary to JSON string

js = json.dumps(data)

json.dumps() → converts Python dictionary → JSON formatted string.

So, js becomes:

'{"x": 5, "y": 10}'

Note: JSON stores keys/values in string form.

4. Convert JSON string back to dictionary

parsed = json.loads(js)

json.loads() → parses JSON string back into a Python dictionary.

Now parsed is again a normal dictionary:

{"x": 5, "y": 10}

5. Add a new key-value pair

parsed["z"] = parsed["x"] * parsed["y"]

Creates a new key "z" inside parsed.

Value is product of x and y:

parsed["x"] = 5

parsed["y"] = 10

So z = 5 * 10 = 50.

Now dictionary looks like:

{"x": 5, "y": 10, "z": 50}

6. Print dictionary length and z value

print(len(parsed), parsed["z"])

len(parsed) → number of keys = 3 (x, y, z).

parsed["z"] → value is 50.

Final Output

3 50

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