December 2015
Beginner to intermediate
350 pages
6h 49m
English
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Starting a thread
This recipe will show us how to start a thread. It will also demonstrate why threads are necessary to keep our GUI responsive during long-running tasks.
Getting ready
Let's first see what happens when we call a function or method of our GUI that has some sleep associated with it without using threads.
Note
We are using a sleep here to simulate a real-world application that might have to wait for a web server or database to respond or a large file transfer or complex computation to complete its task.
The sleep is a very realistic place-holder and shows the principle involved.
Adding a loop into our button callback method with some sleep time results in our GUI becoming unresponsive and, when we try to close the GUI, things get even ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.