Set membership testing in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if 5 is in the set.

Python

numbers = {1, 3, 5, 7}
if 5 [1] numbers:
    print("Found 5")

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

Ain

Bnot in

Ccontains

Dinside

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'not in' instead of 'in'.

Using 'contains' which is not a Python keyword.

Using 'inside' which is not valid syntax.

The keyword in checks if an item is in a set.

2fill in blank

medium

Complete the code to check if 'apple' is NOT in the set.

Python

fruits = {'banana', 'orange', 'grape'}
if 'apple' [1] fruits:
    print("Apple is missing")

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

Ahas

Bin

Ccontains

Dnot in

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'in' instead of 'not in'.

Using 'contains' or 'has' which are not Python keywords.

The keyword not in checks if an item is NOT in a set.

3fill in blank

hard

Fix the error in the code to correctly test membership.

Python

colors = {'red', 'blue', 'green'}
if 'yellow' [1] colors:
    print("Yellow found")
else:
    print("Yellow not found")

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

Ain

Bnot in

Cinside

Dcontains

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'inside' or 'contains' which cause syntax errors.

Using 'not in' when checking for presence.

Use in to check if 'yellow' is in the set.

4fill in blank

hard

Fill both blanks to create a set of squares for numbers greater than 3.

Python

squares = {x[1]2 for x in range(1, 7) if x [2] 3}

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

A**

B+

C>

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' instead of '**' for squaring.

Using '<' instead of '>' for filtering.

Use ** to square numbers and > to filter numbers greater than 3.

5fill in blank

hard

Fill all three blanks to create a set of uppercase words longer than 4 letters.

Python

result = {word[1] for word in words if len(word) [2] 4 and word.isalpha() [3] True}

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

A.upper()

B>

C==

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' or other operators instead of '.upper()'.

Using '<' instead of '>' for length check.

Using '=' instead of '==' for comparison.

Use .upper() to convert words to uppercase, > to check length greater than 4, and == to check if isalpha() returns True.