[interpol_p]

You've been able to write and run code on iOS for a very long time. Since the first iPad was released.

Pythonista came out quite a long time ago now, and it's easy enough to write your own script to download and install projects from a git repository or elsewhere. Same for my app, Codea. What Apple has never allowed was an easy way for users to transfer / download / install code onto their device that was built into the app. If the user was willing to write (or copy and paste) someone else's code then Apple were kind of OK with it.

Both Pythonista and Codea have the ability to export Xcode projects for publishing on the store (though regardless of whether they have that feature, you were never prevented from writing and running code on your iPad).