How to write python code without installing IDE?

We use many integrated development environments to write python code. I personally use Jupyter Notebook and I recommend everyone to use it. But many of us don't want to install IDE and looking for the "Free no install" option. That's why I'm going to suggest some No install IDE which you can use very easily through the internet.

1. Jupyter.org/try

     https://jupyter.org/try
   

2. Google Collab Online Notebooks

    https://colab.research.google.com/
   

3. repl.it https://replit.com/~

and last but not least you can also go to Google and search "Python Interpreter Online" you'll find more options.