online Python Integrated Development Environments (IDEs) available. However, please note that the online landscape may have changed since then, and new options might have emerged. Here are a few popular online Python IDEs that were available at that time:

1. Replit: Replit is a popular online coding platform that supports various programming languages, including Python. It offers an integrated development environment with collaboration features, allowing you to code and run Python programs directly in your browser.

Website: https://replit.com/

2. PythonAnywhere: PythonAnywhere is an online IDE and hosting environment for Python applications. It provides a web-based code editor and a console to run Python scripts in the cloud.

Website: https://www.pythonanywhere.com/

3. Trinket: Trinket is a simple online Python IDE designed for beginners and educators. It allows you to code Python and run your programs instantly in the browser.

Website: https://trinket.io/

4. JDoodle: JDoodle is an online IDE that supports multiple programming languages, including Python. It provides a code editor and a virtual terminal for running Python scripts.

Website: https://www.jdoodle.com/python3-programming-online

5. PyCharm Edu: JetBrains offers a free online version of their PyCharm IDE, designed for educational purposes. It includes features like code analysis, debugging, and integrated lessons for learning Python.

Website: https://www.jetbrains.com/pycharm-edu/

6. Coding Ground: Coding Ground (previously known as Tutorialspoint) is an online learning platform that also provides a web-based IDE for Python. You can write, edit, and execute Python code directly from your browser.

Website: https://www.tutorialspoint.com/codingground.htm

Remember to verify the availability and suitability of these platforms for your specific needs, as some might have changed or evolved since my last update. Additionally, new platforms might have emerged as well. Always make sure to choose a reputable and secure online IDE.