Daily Archives: August 1, 2012

Python Concurrency: An Example of a Queue

Python comes with a lot of cool concurrency tools builtin, such as threads, Queues, semaphores and multiprocessing. In this article, we’ll spend some time learning how to use Queues. A Queue can be used for first-in-first out or last-in-last-out stack-like implementations if you just use them directly. If you’d like to see that in action, see the Hellman article at the end of this post. We’re going to mix threads in and create a simple file downloader script to demonstrate how Queues work for cases where we want concurrency. Continue reading Python Concurrency: An Example of a Queue

wxPython: How to drag and drop a file from your app to the OS

Today on StackOverflow I saw someone who wanted to know how to drag a file from a wx.ListCtrl onto their Desktop or somewhere else in the file system. They were using the file manager skeleton from zetcode, but couldn’t figure out how to add the DnD portion. After a bit of searching and hacking, I came up with this based on something Robin Dunn mentioned in a forum. Continue reading wxPython: How to drag and drop a file from your app to the OS