Adding and removing list elements in Python - Mini Project: Build & Apply

Adding and removing list elements

📖 Scenario: You are managing a simple to-do list for daily tasks. You want to add new tasks and remove completed ones from your list.

🎯 Goal: Build a small program that starts with a list of tasks, adds a new task, removes a completed task, and then shows the updated list.

📋 What You'll Learn

Create a list called tasks with three specific tasks

Create a variable called new_task with a task to add

Add the new_task to the tasks list

Remove a specific task from the tasks list

Print the final tasks list

💡 Why This Matters

🌍 Real World

Managing lists of tasks, shopping items, or any collection of things is common in daily life and software.

💼 Career

Knowing how to add and remove items from lists is a basic skill for programming jobs involving data handling and user input.

1

Create the initial list of tasks

Create a list called tasks with these exact strings: 'Buy groceries', 'Clean the house', and 'Pay bills'.

Python

# Create the list called tasks with the three tasks
# Your code here

Need a hint?

Use square brackets [] to create a list and separate items with commas.

2

Add a new task to the list

Create a variable called new_task and set it to the string 'Walk the dog'.

Python

tasks = ['Buy groceries', 'Clean the house', 'Pay bills']
# Create the variable new_task with the value 'Walk the dog'
# Your code here

Need a hint?

Use the equals sign = to assign the string to the variable.

3

Add the new task and remove a completed task

Add the new_task to the tasks list using the append() method. Then remove the task 'Clean the house' from the tasks list using the remove() method.

Python

tasks = ['Buy groceries', 'Clean the house', 'Pay bills']
new_task = 'Walk the dog'
# Add new_task to tasks
# Remove 'Clean the house' from tasks
# Your code here

Need a hint?

Use list.append(item) to add and list.remove(item) to remove an item.

4

Print the updated list

Print the tasks list to show the updated tasks.

Python

tasks = ['Buy groceries', 'Clean the house', 'Pay bills']
new_task = 'Walk the dog'
tasks.append(new_task)
tasks.remove('Clean the house')
# Print the tasks list
# Your code here

Need a hint?

Use the print() function to display the list.