Multiple parameters in Python - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does it mean when a Python function has multiple parameters?

It means the function can accept more than one input value, each separated by a comma, to perform its task.

beginner

How do you define a function with two parameters named a and b in Python?

Use def function_name(a, b): to define a function that takes two inputs named a and b.

beginner

What happens if you call a function with multiple parameters but provide fewer arguments than parameters?

Python will give an error because it expects all required parameters to have values unless they have default values.

intermediate

Can a Python function have parameters with default values? How does it affect calling the function?

Yes, parameters can have default values. If you don't provide an argument for that parameter when calling the function, the default value is used.

intermediate

How do you call a function with multiple parameters using keyword arguments?

You specify the parameter names and values like function_name(a=5, b=10), which makes the call clearer and order-independent.

What is the correct way to define a function with three parameters named x, y, and z?

A def func[x, y, z]:

B def func(x y z):

C def func(x, y, z):

D def func(x; y; z):

In Python, parameters are separated by commas inside parentheses after the function name.

What will happen if you call a function defined as def add(a, b): with only one argument?

A It will cause an error because b is missing.

B It will ignore the missing argument and run anyway.

C It will run and use a default value for b.

D It will assign None to b automatically.

If a parameter has no default value, Python requires an argument for it when calling the function.

How can you call a function with parameters a and b by specifying the arguments in any order?

A Both C and D

B func(1, 2)

C func(b=2, a=1)

D func(a=1, b=2)

Using keyword arguments lets you specify parameters in any order by naming them.

Which of these is a valid function call if the function is defined as def greet(name, greeting='Hello'):?

A greet('Alice', 'Hi')

B All of the above

C greet(greeting='Hi', name='Alice')

D greet('Alice')

The function can be called with just the required parameter, with both parameters, or with keyword arguments in any order.

What is the output of this code?

def multiply(x, y):
    return x * y

print(multiply(3, 4))

A 7

B Error

C 34

D 12

The function multiplies 3 by 4 and returns 12, which is printed.

Explain how to define and call a Python function with multiple parameters, including an example.

Think about how you tell a friend to do something with two or more pieces of information.

Describe the difference between positional and keyword arguments when calling a function with multiple parameters.

Imagine giving directions by order or by naming each step.