The local web interface is accessible via pyp5js serve command. The idea is to add a trash icon (using font awesome maybe?) near to the sketch name that works as an input for the user to delete the sketch. When the user clicks on the trash icon, an alert dialog should ask for confirmation before really deleting.

The pyp5js/http/web_app.py should implement a new view or the sketch view should be able to handle DELETE http requests. We could implement a method at Sketch class to delete the sketch. This method probably will be only an indirection to a shutil.rmtree call to delete that sketch directory. The view should use this function to delete the sketch.