Python Coding challenge - Day 785| What is the output of the following Python Code?

 

Code Explanation:

Importing the json Module

import json

The json module in Python provides functions to work with JSON (JavaScript Object Notation) data.

It allows converting between Python dictionaries and JSON strings:

json.dumps() → Convert Python object → JSON string

json.loads() → Convert JSON string → Python object

Creating a Python Dictionary

data = {"a": 2, "b": 3}

A dictionary named data is created with:

Key "a" having value 2

Key "b" having value 3

So, data = {'a': 2, 'b': 3}

Converting Python Dictionary to JSON String

js = json.dumps(data)

json.dumps() serializes (converts) the dictionary into a JSON-formatted string.

The resulting string looks like:

js = '{"a": 2, "b": 3}'

This step is useful for saving or transmitting data in JSON format (e.g., via APIs or files).

Parsing JSON String Back to Python Dictionary

parsed = json.loads(js)

json.loads() deserializes (loads) the JSON string back into a Python dictionary.

So parsed = {"a": 2, "b": 3} once again.

 Adding a New Key-Value Pair

parsed["c"] = parsed["a"] ** parsed["b"]

Adds a new key "c" to the dictionary.

The value is computed using exponentiation:

parsed["a"] → 2

parsed["b"] → 3

So 2 ** 3 = 8

After this line, the dictionary becomes:

parsed = {"a": 2, "b": 3, "c": 8}

Printing the Results

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

len(parsed) → number of keys in the dictionary → 3 ("a", "b", "c")

parsed["c"] → value of key "c" → 8

The output will be:

3 8

Final Output

3 8

500 Days Python Coding Challenges with Explanation