Nested dictionaries in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a nested dictionary with a key 'person' and a nested key 'name'.

Python

data = {'person': {'name': [1]

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

Aname

BAlice

C'Alice'

D"name"

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around string values.

Using variable names without defining them.

The value for the nested key 'name' must be a string, so it needs quotes. 'Alice' is correct.

2fill in blank

medium

Complete the code to access the nested value 'city' inside the 'address' dictionary.

Python

city = info['address'][[1]]

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

Acity

B'city'

C"address"

D'address'

Attempts:

3 left

💡 Hint

Common Mistakes

Using the key without quotes.

Using the wrong key name.

To access a nested dictionary value, use the key as a string inside quotes. 'city' is the correct key.

3fill in blank

hard

Fix the error in the code to correctly add a nested dictionary under the key 'contact'.

Python

data['contact'] = [1]

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

A{'phone': '123-4567'}

B{phone: '123-4567'}

C['phone', '123-4567']

D('phone', '123-4567')

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted keys causing syntax errors.

Using list or tuple instead of dictionary.

Dictionary keys must be strings in quotes. Option A correctly creates a nested dictionary.

4fill in blank

hard

Fill both blanks to create a nested dictionary with keys 'student' and 'grade'.

Python

record = { [1]: [2] }

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

A'student'

B'grade'

C90

D{'grade': 90}

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting the key 'student'.

Using a number instead of a dictionary for the value.

The outer key is 'student' (a string), and the value is a nested dictionary {'grade': 90}.

5fill in blank

hard

Fill both blanks to create a nested dictionary with keys 'team', 'player', and 'score'.

Python

game = { [1]: [2] }

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

A'team'

B{'player': 'John', 'score': 10}

C'player'

D'score'

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting keys.

Using incorrect data types for nested values.

The outer key is 'team'. The value is a dictionary with keys 'player' and 'score'. Here, we fill the outer key and the nested dictionary.