For 2023 (and 2024 ...) - we are now fully retired from IT training. We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.
Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!
I am also active in many other area and still look after a lot of web sites - you can find an index ((here)) |
wxPython - Introduction and sample
Python has a number of GUIs ... and these days wxPython is the most popular. As one of the latter sessions of yesterday's Python Programming Course, I introduced the GUI and talked a little about how it's programmed, and the delegates put together a short sample application.
wxPython uses Python. So you need to know some Python. Then you import wx ... and write your application:
• Write a class (extending one of the ones that comes with wx) to define your components (widgets), how those components are laid out (geometry) and what to do when someone presses a button or drags the mouse (events).
• Create an object of that class, and put it in a frame
• Show the frame (important this one - otherwise you won't see your work)
• Call a main application loop method which waits for events and handles them. All the action of you code will take place within the event handler routines, and other code that those event handlers call - you won't call the functionality directly.
• That's the end of your code. The main loop never returns as you (should) have some sort of application exit within it, programmed onto a quit button.
Here's a sample display:
And the source code is here (written 2009-01-29)
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles Y207 - wxPython [903] Pieces of Python - (2006-10-23) [2744] PyQt (Python and Qt) and wxPython - GUI comparison - (2010-04-28) [2887] Snow Leopard and Python (that is OS X 10.6 and wxPython) - (2010-07-26) [3081] wxPython - simple example to add GUI to a server log file analysis - (2010-12-08) [3086] Sizers (geometry control) in a wxPython GUI - a first example - (2010-12-15) [3092] wxPython geometry - BoxSizer example - (2010-12-17) [3139] Steering our Python courses towards wxPython, SQLite and Django - (2011-01-19) [4589] Principles or a GUI and their practical application using wxPthon - (2015-11-30)
Some other Articles
Python - a truly dynamic languageApache httpd and Apache Tomcat miscellanyService Excellence AwardsFirst ClasswxPython - Introduction and sampleThe Wiltshire PoliceConversion of OSI grid references to Eastings and NorthingsHow long should a training module be?The Royal Mail ReceiptThe Month Ahead - What is happening in Melksham
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This is a page archived from The Horse's Mouth at
http://www.wellho.net/horse/ -
the diary and writings of Graham Ellis.
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