Membership operators (in, not in) in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if 'apple' is in the list.

Python

fruits = ['apple', 'banana', 'cherry']
if 'apple' [1] fruits:
    print('Found apple!')

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

Anot in

Bcontains

Cin

Dhas

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'not in' instead of 'in'.

Using 'contains' which is not a Python operator.

The in operator checks if an item exists in a list.

2fill in blank

medium

Complete the code to check if 'dog' is NOT in the list.

Python

animals = ['cat', 'bird', 'fish']
if 'dog' [1] animals:
    print('Dog is not here!')

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

Acontains

Bnot in

Cin

Dhas

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'in' instead of 'not in'.

Using 'contains' which is not a Python operator.

The not in operator checks if an item does not exist in a list.

3fill in blank

hard

Fix the error in the code to check membership correctly.

Python

colors = ['red', 'green', 'blue']
if 'yellow' [1] colors:
    print('Yellow is in the list')
else:
    print('Yellow is not in the list')

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

Ain

Bnot in

Cinside

Dhas

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'not in' when the logic requires 'in'.

Using invalid operators like 'inside' or 'has'.

The in operator is correct because the if block prints 'Yellow is in the list' when the item is present, and else when not.

4fill in blank

hard

Fill both blanks to create a dictionary of words and their lengths only if length is greater than 3.

Python

words = ['sun', 'moon', 'star', 'sky']
lengths = {word: [1] for word in words if len(word) [2] 3}

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Alen(word)

B>

C<

Dword

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>'.

Using 'word' instead of 'len(word)'.

We use len(word) to get the length and > to check if length is greater than 3.

5fill in blank

hard

Fill all three blanks to create a dictionary with uppercase keys and values only if value is not in the list.

Python

values = ['a', 'b', 'c']
result = { [1]: [2] for [3] in values if [2] not in ['b', 'c']}

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Av.upper()

Bv

Dk

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'k' as loop variable when it is not defined.

Mixing keys and values incorrectly.

We use v.upper() for keys, v for values, and iterate with v over values.