Python Build a Simple Menu-Driven Console App

This guide explains Build a Simple Menu-Driven Console App through a focused example and practical reasoning. No prior knowledge of this specific operation is required.

Understanding the Concept

A menu-driven console application repeats a prompt, chooses an action and stops when the user selects Exit. Separating the menu from the action code avoids confusing nesting.

When You Would Use This

Build a minimal help menu that does not modify files or accounts.

Step-by-Step Example

while True:
    print("1. Show greeting | 2. Show tip | 0. Exit")
    selected_option = input("Choose: ").strip()
    if selected_option == "0":
        break
    elif selected_option == "1":
        print("Hello!")
    elif selected_option == "2":
        print("Practice a little every day")
    else:
        print("Unknown option")

How the Example Works

The menu is displayed after each action until 0 is entered. Comparing text avoids needing numeric conversion for the menu selections.

Try It Yourself

Add a third option that displays a short list of your learning goals.

Common Beginner Mistakes

• Not defining a clear exit option.
• Using separate independent if blocks that run unintended actions.
• Assuming a menu selection is already an integer.

Key Takeaways

• A menu-driven console application repeats a prompt, chooses an action and stops when the user selects Exit.
• The menu is displayed after each action until 0 is entered.
• Avoid this mistake: Not defining a clear exit option.