Pythonbeginner6 min read

Lists

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Author & Reviewer

Last updated:Jul 9, 2026

Storing Multiple Items with Lists

Learning Goals

Understand the purpose and application of Lists in Python projects.

Implement clean, functional code demonstrating Lists syntax.

Identify and avoid common coding mistakes associated with lists.

Apply Lists features to solve a realistic beginner-level development task.

Video Tutorial Coming Soon

Our expert team is currently recording the visual guide for Lists.

The Core Concept

Lists are ordered, mutable (changeable) collections of items. They can hold items of different data types and are one of the most frequently used data structures in Python.

Visual guide

Python automation process

A simple original diagram to connect the lesson idea with real project flow.

1Input

2Script

3Process

4Save output

5Review result

Code & Implementation

python

fruits = ["apple", "banana", "cherry"]
fruits.append("orange")
fruits[1] = "blueberry"
print(fruits)

Expected Output

['apple', 'blueberry', 'cherry', 'orange']

Expense Manager

Hands-on practice task

Required for Mastery

The Challenge

Build an application to track user expenses. Users should be able to add an expense, view all expenses, and see the total money spent.

Helpful Hints

•Use a list of dictionaries to store expenses, e.g., {'item': 'food', 'cost': 15}.
•Create a menu using a while loop.
•Write functions to add expenses and calculate the total.

Quick Knowledge Check

Can a list contain lists?

Yes, these are called nested lists or 2D arrays.

Continue Learning

Next steps after this lesson

Previous lessonFunctions Next lessonTuples Expense ManagerBuild an application to track user expenses. Users should be able to add an expense, view all expenses, and see the total money spent.Duplicate Line RemoverUse this free tool while practicing the lesson.Free Developer Learning HubExplore coding tutorials, tools, projects, automation guides, and resume resources.

Practice task

Build an application to track user expenses. Users should be able to add an expense, view all expenses, and see the total money spent.

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✓ Content Review Date: 7/9/2026
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