examples/tutorial/Addressbook

[twallace51]

My question is, how am I doing?
To be more specific, I am learning to use python 3.6 and PyQt5.
For me, the best (only?) way to learn is to read and work with well written code.
I liked the examples provided by Qt, particularly the Addressbook tutorial, see
https://github.com/baoboa/pyqt5/blob...ls/addressbook
However, there were a lot of things I would have liked to have been included in the tutorial, so I did.
Please review the attached file.
Let me know if this tutorial helpful for other newbies like myself, what could I do better?
Thanks, Tim