Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Learn Challenge: Positional Arguments | Positional and Optional Arguments
Python Functions Tutorial

Swipe to show menu

book
Challenge: Positional Arguments

Task

Swipe to start coding

Implement the register_user function that checks the user's age, adds their details to a database (users_db), and returns a success or failure message.

  1. Define the function register_user that takes parameters username, email, and age.
  2. Inside the function register_user, check if age is less than 18. If it is, return the message "Registration failed: age must be 18 or older."
  3. Create a dictionary user with the keys username, email, and age, and assign the corresponding values.
  4. Add the user dictionary to the users_db list using the appropriate method.
  5. If everything is successful, return the message "User {username} registered successfully!", where {username} is the actual username.
  6. Call the register_user function with example parameters for a user, either by passing arguments directly or as a dictionary.

Solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

SectionΒ 2. ChapterΒ 2
single

single

Ask AI

expand

Ask AI

ChatGPT

Ask anything or try one of the suggested questions to begin our chat

close

Awesome!

Completion rate improved to 4.35

book
Challenge: Positional Arguments

Task

Swipe to start coding

Implement the register_user function that checks the user's age, adds their details to a database (users_db), and returns a success or failure message.

  1. Define the function register_user that takes parameters username, email, and age.
  2. Inside the function register_user, check if age is less than 18. If it is, return the message "Registration failed: age must be 18 or older."
  3. Create a dictionary user with the keys username, email, and age, and assign the corresponding values.
  4. Add the user dictionary to the users_db list using the appropriate method.
  5. If everything is successful, return the message "User {username} registered successfully!", where {username} is the actual username.
  6. Call the register_user function with example parameters for a user, either by passing arguments directly or as a dictionary.

Solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

close

Awesome!

Completion rate improved to 4.35

Swipe to show menu

some-alt