Serializing and deserializing JSON in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to convert a Python dictionary to a JSON string.

Python

import json

data = {"name": "Alice", "age": 30}
json_string = json.[1](data)
print(json_string)

Drag options to blanks, or click blank then click option'

Aloads

Bdumps

Cload

Ddump

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'dump' instead of 'dumps' which writes to a file instead of returning a string.

Using 'load' or 'loads' which are for reading JSON, not writing.

The json.dumps() function converts a Python object into a JSON string.

2fill in blank

medium

Complete the code to convert a JSON string back to a Python dictionary.

Python

import json

json_string = '{"name": "Bob", "age": 25}'
data = json.[1](json_string)
print(data)

Drag options to blanks, or click blank then click option'

Aload

Bdumps

Cloads

Ddump

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'load' which expects a file object, not a string.

Using 'dump' or 'dumps' which are for writing JSON, not reading.

The json.loads() function parses a JSON string and returns a Python object.

3fill in blank

hard

Fix the error in the code to correctly write a Python dictionary to a JSON file.

Python

import json

data = {"city": "Paris", "population": 2148327}
with open('data.json', 'w') as file:
    json.[1](data, file)

Drag options to blanks, or click blank then click option'

Adump

Bloads

Cdumps

Dload

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'dumps' which returns a string instead of writing to a file.

Using 'loads' or 'load' which are for reading JSON.

The json.dump() function writes a Python object as JSON into a file.

4fill in blank

hard

Fill both blanks to deserialize JSON from a file and print the Python object.

Python

import json

with open('info.json', 'r') as [1]:
    data = json.[2]([1])
print(data)

Drag options to blanks, or click blank then click option'

Afile

Bloads

Cload

Df

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'loads' which expects a string, not a file object.

Using a different variable name inside the block than the one used in 'with open'.

Open the file with a variable name (e.g., 'f') and use json.load() to read JSON from the file object.

5fill in blank

hard

Fill all three blanks to serialize a Python dictionary with indentation and sort keys.

Python

import json

person = {"name": "Eve", "age": 28, "city": "Berlin"}
json_string = json.[1](person, indent=[2], sort_keys=[3])
print(json_string)

Drag options to blanks, or click blank then click option'

Adump

Bdumps

CTrue

D4

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'dump' which writes to a file instead of returning a string.

Passing indentation as a string instead of a number.

Setting sort_keys to a string instead of a boolean.

Use json.dumps() to convert to a JSON string with indentation (4 spaces) and keys sorted alphabetically (sort_keys=True).