Adding and removing list elements in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add the number 5 to the list.

Python

numbers = [1, 2, 3]
numbers.[1](5)
print(numbers)

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

Aremove

Bappend

Cpop

Dinsert

Attempts:

3 left

💡 Hint

Common Mistakes

Using remove instead of append will cause an error because 5 is not in the list.

Using pop removes an element instead of adding one.

The append method adds an element to the end of the list.

2fill in blank

medium

Complete the code to remove the element 3 from the list.

Python

numbers = [1, 2, 3, 4]
numbers.[1](3)
print(numbers)

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

Aappend

Bpop

Cinsert

Dremove

Attempts:

3 left

💡 Hint

Common Mistakes

Using pop without an index removes the last element, not the specified one.

Using append adds an element instead of removing.

The remove method deletes the first occurrence of the specified value from the list.

3fill in blank

hard

Fix the error in the code to remove the last element from the list.

Python

items = ['a', 'b', 'c']
items.[1]()
print(items)

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

Apop

Bremove

Cappend

Dinsert

Attempts:

3 left

💡 Hint

Common Mistakes

Using remove() without an argument causes an error.

Using append() adds an element instead of removing.

The pop() method removes and returns the last item in the list when called without arguments.

4fill in blank

hard

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

Python

squares = [x[1]2 for x in range(1, 6) if x [2] 3]
print(squares)

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A**

B>

C<

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' instead of '**' will add numbers instead of squaring.

Using '<' instead of '>' will select wrong numbers.

The ** operator is used for exponentiation (power), and > checks if a number is greater than another.

5fill in blank

hard

Fill all three blanks to create a dictionary with uppercase keys and values greater than 0.

Python

result = [1]: [2] for [3], v in data.items() if v > 0}
print(result)

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

Ak.upper()

Bv

Ck

Dvalue

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'value' instead of 'v' causes a NameError.

Not using .upper() keeps keys lowercase.

We use k.upper() to make keys uppercase, v for values, and k to unpack keys from the dictionary.