Accessing values using keys in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to access the value of the key 'name' in the dictionary.

Python

person = {'name': 'Alice', 'age': 30}
print(person[1])

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

A['location']

B['age']

C['name']

D['gender']

Attempts:

3 left

💡 Hint

Common Mistakes

Using parentheses instead of square brackets.

Using a key that does not exist in the dictionary.

The key 'name' is used inside square brackets to get its value from the dictionary.

2fill in blank

medium

Complete the code to print the value of the key 'color' from the dictionary.

Python

car = {'brand': 'Toyota', 'color': 'red', 'year': 2020}
print(car[1])

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

A['model']

B['color']

C['year']

D['brand']

Attempts:

3 left

💡 Hint

Common Mistakes

Using a key that is not in the dictionary.

Forgetting to put the key name in quotes.

To get the color of the car, use the key 'color' inside square brackets.

3fill in blank

hard

Fix the error in the code to correctly access the value of the key 'score'.

Python

results = {'score': 85, 'grade': 'B'}
print(results[1])

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

Ascore

B{score}

C(score)

D['score']

Attempts:

3 left

💡 Hint

Common Mistakes

Using parentheses or curly braces instead of square brackets.

Not putting the key name in quotes.

Dictionary keys must be accessed using square brackets and the key as a string.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps each word to its length.

Python

words = ['apple', 'banana', 'cherry']
lengths = {word[1] for word in words if len(word) [2] 5}

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

A: len(word)

B>

C<

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '=' instead of ':' in the dictionary comprehension.

Using the wrong comparison operator in the if condition.

The dictionary comprehension maps each word to its length using ':' and filters words longer than 5 using '>'.

5fill in blank

hard

Fill all three blanks to create a dictionary of uppercase keys and their values, filtering values greater than 10.

Python

data = {'a': 5, 'b': 15, 'c': 20}
result = [1]: [2] for k, v in data.items() if v [3] 10}

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

Ak.upper()

Bv

C>

Dk.lower()

Attempts:

3 left

💡 Hint

Common Mistakes

Using k.lower() instead of k.upper().

Using '<' or '==' instead of '>' in the condition.

The comprehension uses k.upper() as keys, v as values, and filters values greater than 10 with '>'.