Variable-length arguments (*args) in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a function that accepts any number of arguments.

Python

def greet([1]):
    for name in names:
        print(f"Hello, {name}!")

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

A&names

Bnames

C**names

D*names

Attempts:

3 left

💡 Hint

Common Mistakes

Using ** instead of * for positional arguments.

Forgetting the asterisk and just writing the parameter name.

The *names syntax allows the function to accept any number of positional arguments as a tuple.

2fill in blank

medium

Complete the code to call the function with multiple arguments.

Python

def greet(*names):
    for name in names:
        print(f"Hello, {name}!")

greet([1])

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

A["Alice", "Bob", "Charlie"]

B"Alice", "Bob", "Charlie"

C{"Alice", "Bob", "Charlie"}

DAlice, Bob, Charlie

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a list or set instead of separate arguments.

Not using quotes around string arguments.

When calling a function with *args, pass multiple arguments separated by commas inside the parentheses.

3fill in blank

hard

Fix the error in the function definition to correctly accept variable-length arguments.

Python

def add_numbers([1]):
    total = 0
    for num in numbers:
        total += num
    return total

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

A*numbers

Bnumbers

C**numbers

D&numbers

Attempts:

3 left

💡 Hint

Common Mistakes

Using ** instead of *.

Not using any asterisk.

The function must use *numbers to accept any number of positional arguments as a tuple.

4fill in blank

hard

Fill both blanks to create a function that sums only positive numbers from variable arguments.

Python

def sum_positive([1]):
    return sum(num for num in numbers if num [2] 0)

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

A*numbers

B>

C<

Dnumbers

Attempts:

3 left

💡 Hint

Common Mistakes

Using < instead of > to filter positive numbers.

Not using * to accept variable arguments.

The function uses *numbers to accept variable arguments and sums only those greater than zero.

5fill in blank

hard

Fill all three blanks to create a function that returns a dictionary with word lengths for words longer than 3 characters.

Python

def word_lengths([1]):
    return [2]: len(word) for word in words if len(word) [3] 3 }

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

A*words

Bword

C>

Dwords

Attempts:

3 left

💡 Hint

Common Mistakes

Not using * to accept variable arguments.

Using parentheses instead of curly braces for dictionary comprehension.

Using < instead of > for filtering.

The function accepts variable words with *words and returns a dictionary comprehension filtering words longer than 3 characters.