Chapter 15

1. You have just bought a Raspberry Pi with Raspbian preinstalled to run your PyQt5 application. When you try to run your application, you get an error trying to import QtNetworkAuth, which your application depends on. What is likely the problem?

Possibly, your Raspbian installation is version 9. Version 9 has Qt 5.7, which does not have the QtNetworkAuth module. You need to upgrade to a newer release of Raspbian.

2. You have written a PyQt frontend for a legacy scanner device. Your code talks to the scanner through a proprietary driver utility called scanutil.exe. It is currently running on a Windows 10 PC, but your employer wants to save money by moving it to a Raspberry Pi. Is this a good idea?

Unfortunately, it isn't. If your application relies on a proprietary Windows x86 binary, that program will not run on the Pi. To switch to the Pi, you would need a binary...