Default arguments in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a function with a default argument.

Python

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

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

A"Guest"

BGuest

Cname

DNone

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around string default values.

Using variable names without quotes as default.

The default argument must be a string, so it needs quotes. "Guest" is correct.

2fill in blank

medium

Which value should be passed to greet() so it prints 'Hello, Guest!'?

Python

def greet(name="Guest"):
    print(f"Hello, {name}!")

result = greet([1])

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

A"User"

BNone

C"Guest"

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Passing None which would print 'Hello, None!'.

Using an unquoted variable name instead of a string value.

Passing "Guest" explicitly produces the same output as calling with no arguments, since the default value is "Guest".

3fill in blank

hard

Fix the error in the function definition by completing the default argument correctly.

Python

def multiply(x, y=[1]):
    return x * y

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

A1

B"1"

C0

DNone

Attempts:

3 left

💡 Hint

Common Mistakes

Using a string "1" instead of number 1.

Using None which causes errors in multiplication.

The default argument y should be a number, so 1 without quotes is correct.

4fill in blank

hard

Fill both blanks to create a function with two default arguments and call it with one argument.

Python

def order(item, quantity=[1], price=[2]):
    total = quantity * price
    print(f"Order: {quantity} {item}(s) for ${total}")

order("apple")

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

A1

B0

C0.5

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Setting quantity to 0 which results in zero total.

Using integer price when decimal is expected.

Quantity defaults to 1 and price to 0.5 to calculate total correctly.

5fill in blank

hard

Fill all three blanks to create a function with default arguments and call it with two arguments.

Python

def describe_pet(name=[1], species=[2], age=[3]):
    print(f"{name} is a {age}-year-old {species}.")

describe_pet("Buddy", "dog")

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

A"Unknown"

B"dog"

C3

D"Buddy"

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong default types like numbers for strings.

Not matching the order of arguments and defaults.

Default name is "Buddy" but overridden by argument, species default "dog", age default 3.