Delete files from system.DocumentsDirectory while uninstalling

Getting Started Newbie Questions
#1

I want to delete a file from system’s DocumentsDirectory automatically while the app will be uninstalled. I got the lfs and os.remove to remove the file. But how to trigger that during uninstallation ?

#2

I didn’t think you needed to.  AFAIK removing the app also removes the contents in documents.

#3

All sandboxed data (for your app) is removed when you uninstall.

#4

I didn’t think you needed to.  AFAIK removing the app also removes the contents in documents.

#5

All sandboxed data (for your app) is removed when you uninstall.