Python Coding challenge - Day 781| What is the output of the following Python Code?

 

Code Explanation:

1. import json

This imports Python’s built-in json module.

The json module lets you convert Python objects to JSON strings (serialization) and back from JSON strings to Python objects (deserialization).

2. data = {"x": 3, "y": 2}

Creates a Python dictionary named data.

It has two key–value pairs:

x → 3

y → 2

So, data looks like:

{'x': 3, 'y': 2}

3. js = json.dumps(data)

json.dumps() means “dump to string.”

It converts the Python dictionary into a JSON-formatted string.

After this line:

js == '{"x": 3, "y": 2}'

Note: this is a string, not a dictionary anymore.

4. parsed = json.loads(js)

json.loads() means “load from string.”

It takes the JSON string (js) and converts it back into a Python dictionary.

So now parsed is again:

{'x': 3, 'y': 2}

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

This line adds a new key "z" to the dictionary.

The value is computed as parsed["x"] ** parsed["y"], which means:

3 ** 2 = 9

After this line, parsed becomes:

{'x': 3, 'y': 2, 'z': 9}

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

len(parsed) gives the number of key–value pairs in the dictionary.

There are now 3 keys: "x", "y", and "z", so len(parsed) == 3.

parsed["z"] is the value of key "z", which is 9.

So the output is:

3 9

Final Output:

3 9

500 Days Python Coding Challenges with Explanation