On line interpreter for testing code

Hello:

I am a player at CheckiO since a few days and I love this site. I have learned a lot throuhg the tasks and, of course reviewing the code of the other players. It's a great idean and very well-imlemented site.

The only thing I miss is to have a place to run and test code out of the task enviroment. I mean, sometimes I want to run and test a solution I am reviewing, but I cannot find how to do that. You can view the code but not run it.

As I am new at this site I do not know, but perhaps the online interpreter exists. In the mean time, I am using this site to run code online: https://www.programiz.com/python-programming/online-compiler/

Nevertheless, I think it would be a good idea to have a similar "sandbox" inside CheckiO.

Thanks.