How does sololearn compile python code and show output?

Question

How can i make an app or a application that execute code lets say python and show me the output i searched the whole internet but i didn't get any revalent answer.

Answer 1

//Sololearn complies code's in there server, so sololearn needs online when running non-web code's

Answer 2

But how do they compile the code on server?

Answer 3

I want to make an app which compile the code using this procedure.
Where can i get the tutorial or information about this.