One:
Install the Anaconda in your PC https://www.anaconda.com/distribution/Use command line: jupyter notebook
Tow:
Online python as follows:https://repl.it/languages/python3
Three:
Google Colab https://colab.research.google.com/You can also use ipython or qpython in your mobile.
Four:
https://thonny.org/
Python ide for beginners