From my mobile phone when I run this command: file=open("newfile.txt","w") in the code playground. Where is newfile.txt is created on the phone?
you can't run the code without internet connection which means code is executed on the server,so the file is created there.
code is not executed on your phone it is executed on server. besides that I doubt that there is python installed on phones
How to open file that in my phone to compile