Countdown Timer with Message Python Challenge

Your task for today is to build a countdown timer in Python that starts from a number entered by the user and counts down to 1 with a 1-second delay between each number. When the countdown finishes, the program displays a final message chosen by the user. This project is a great way to practice loops, time delays, user input, and input validation.

📝 Project Task

The program should:

• Ask the user to enter a starting number (e.g., 10).

• Count down to 1 using a for or while loop, printing each number with a 1-second delay between prints.

• After the countdown, display a final message like "Time’s up!" or "Go!".

💡 Bonus:

• Add a check to ensure the user enters a positive integer.

• Let the user choose the final message before the countdown begins.

This is a fun utility app that builds up your confidence with loops, timing, and working with user inputs in the terminal.

📌 Expected Output

When the program runs, it might look like this:

Enter a starting number: 5
Enter your final message: Go!

5
4
3
2
1
Go!

If the user types a non-positive number, it should show a message like:

Please enter a positive integer.

---

💬 Join the Weekly Python Chat

Need help or want to share what you built? Join this week’s Python Chat Thread to:

• Ask questions

• Share your solution

• Get feedback

• Find study partners

---

💻 Launch This Project in Colab

Open the interactive Google Colab notebook for today’s project — with full instructions, hints, and solutions.

Click the button below to start coding — no setup needed: