Python Coding challenge - Day 777| What is the output of the following Python Code?

Code Explanation:

Importing Required Libraries

import json

from collections import Counter

json → Used for converting Python objects to JSON strings and back.

Counter (from collections) → Helps count occurrences of each item in a list, tuple, or any iterable.

Creating a Dictionary

data = {"a": 1, "b": 2, "c": 3, "a": 1}

Here, a dictionary named data is created.

Note: In Python dictionaries, keys must be unique.

So, "a": 1 appears twice — but only the last value is kept.

Final dictionary effectively becomes:

{"a": 1, "b": 2, "c": 3}

Converting Dictionary to JSON String

js = json.dumps(data)

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

Example result:

'{"a": 1, "b": 2, "c": 3}'

Now js is a string, not a dictionary.

Converting JSON String Back to Python Dictionary

parsed = json.loads(js)

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

So parsed now becomes:

{"a": 1, "b": 2, "c": 3}

Counting Frequency of Values

count = Counter(parsed.values())

parsed.values() → gives [1, 2, 3].

Counter() counts how many times each value occurs.

Each value is unique here, so:

Counter({1: 1, 2: 1, 3: 1})

Printing the Results

print(len(count), sum(count.values()))

len(count) → number of unique values = 3

sum(count.values()) → total number of counted items = 3 (since 1+1+1 = 3)

Final Output:

3 3

500 Days Python Coding Challenges with Explanation