The other day, I wrote an updated version of my wxPython pubsub article for wxPython 2.9 and realized I had never gotten around to trying PyDispatcher to see how it differed from pubsub. I’m still not sure how it differs internally, but I thought it would be fun to “port” the pubsub code from the […]
wxPython: Using PyDispatcher instead of Pubsub Read More »
NOTE: This article is for wxPython 2.9-3.0. If you are using wxPython 4, you should go to my newer article Several years ago, I wrote a tutorial about wxPython 2.8 and its built-in pubsub module which you can read here. Back then, a new API for pubsub was added in wxPython 2.8.11.0 that could be
wxPython 2.9 and the Newer Pubsub API: A Simple Tutorial Read More »
Every now and then, I see someone wondering how to create a progress bar and update it. So I decided to whip up an example application that updates a progress bar (technically a wx.Gauge widget) from a thread. In this tutorial, we will create a frame with a button. When the button is pushed, it
wxPython: How to Update a Progress Bar from a Thread Read More »
Today I was reading the wxPython Google group / mailing list and there was someone asking about how to make Python’s logging module write its output to file and to a TextCtrl. It turns out that you need to create a custom logging handler to do it. At first, I tried just using a normal
wxPython: How to Redirect Python’s Logging Module to a TextCtrl Read More »
Today, I came across an interesting question on StackOverflow where the author was asking how he could write a wxPython program dynamically. In other words, he wanted to be able to edit the code and basically refresh the application without closing and re-running his code. The simplest way would be to use Python’s built-in reload
wxPython: How to Edit Your GUI Interactively Using reload() Read More »
I recently became aware of a Tic-Tac-Toe challenge on github where the programmer is supposed to create a Tic-Tac-Toe game that let’s the player win every time. You have to code it in Python, although the people behind this challenge prefer you do it with Django. I don’t know Django very well, so I decided
wxPython: Creating a Simple Tic-Tac-Toe Game Read More »
I recently tried to help someone (on the wxPython mailing list) figure out how to use a Grid widget (wx.grid.Grid) via XRC. It should be simple, but if you run the code below, you’ll discover a weird issue: import wx from wx import xrc ######################################################################## class MyApp(wx.App): def OnInit(self): self.res = xrc.XmlResource(“grid.xrc”) frame = self.res.LoadFrame(None,
wxPython: Creating a Grid with XRC Read More »
My wife teaches 3rd grade math and she recently learned about the process of obtaining the digital root of numbers. The digital root is a single digit number found by summing the individual digits. So for 15, you would add 1+5 to get 6. Thus 6 is the digital root of 15. The trainer that
Using Python to Teach About Finding the Digital Root Read More »
Today we’re going to learn about one of wxPython’s newer features: wx.lib.softwareupdate. It was actually added a couple of years ago. What this allows you to do is add update abilities to your software. As far as I can tell, this mixin only allows prompted updates, not silent updates. Getting Started It’s built into wxPython
wxPython: Updating Your Application with Esky Read More »
This topic comes up from time to time every year. Someone will ask about how to make their application full screen or how to just make it maximize when it first loads. So we’ll spend a little time showing you how to do each of these activities.
wxPython: Making your Frame Maximize or Full Screen Read More »
I see people asking about this topic from time to time in various places on the internet. Making wxPython minimize to the tray is really quite simple, but there is at least one thing you need to watch out for. We’ll get to that, but first we need to spend some time looking at some
wxPython: How to Minimize to System Tray Read More »
When I was a kid, I was really into secret codes and ciphers. I thought they were all kinds of fun. My mom thought it would be fun to use some of the ciphers I was so enamored with in treasure hunts for special occasions, like birthdays. She would take something like a Cryptograph Wheel
wxPython – Having Fun with Silly Ciphers Read More »
This week, I needed to figure out how to attach an event handler that would fire when I double-clicked an item (i.e. row) in an ObjectListView widget that was in LC_REPORT mode. For some reason, there isn’t an obvious mouse event for that. There is an EVT_LIST_ITEM_RIGHT_CLICK and an EVT_LIST_ITEM_MIDDLE_CLICK, but nothing for LEFT clicks
wxPython: How to Double-click an Item in an ObjectListView Widget Read More »
This week I spent some time learning how to add check boxes to the ObjectListView widget in wxPython. If you don’t know, ObjectListView is a 3rd party wrapper for the wx.ListCtrl widget that makes using the ListCtrl much easier. You can read all about it in this older article from the archives. I had a
wxPython: Adding Checkboxes to ObjectListView Read More »
The other day, I stumbled across a question on StackOverflow asking how to get the children widgets of a BoxSizer. In wxPython, you would expect to call the sizer’s GetChildren() method. However, this returns a list of SizerItems objects rather than a list of the actual widgets themselves. You can see the difference if you
wxPython: How to Get Children Widgets from a Sizer Read More »