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2746 - Model - View - Controller demo, Sqlite - Python 3 - Qt4

The Model - View - Controller approach to application design keeps the Graphic User Interface (the view) separate from the database (the model), with the controller in between the two, describing how the data is displayed, and how changes to the data are saved away in the database. By separating th ....

2745 - Connecting Python to sqlite and MySQL databases

For developing a Python application, and for light use, the SQLite database may be a good choice ... but then you may want to be able to expand the system to use a central database with a more classic server such as MySQL at a later date. Using Polymorphism in Python, and with a careful choice of w ....

2744 - PyQt (Python and Qt) and wxPython - GUI comparison

We're running a tailored 3 day Python course at present, using Python 3 if it's practical, and today we compared the two contenders for the "Top GUI" prize - that's Python with Qt (PyQt) and wxPython. Now wxPython isn't yet available in Python 3, but PyQt is - although some of the documentation ref ....

2743 - Public Open Source Training Courses running this summer and autumn in Melksham

We've got a continuing series of Open Source courses scheduled through the summer ... as I write (late April) we still have availability on all public courses, although in one or two cases our rooms at Well House Manor are all spoken for. Python - 2 courses, each every 2 months - one for newcomers ....

2742 - A simple server benchmark script

Here's one of those examples where I found myself illustrating so many interesting features of PHP in one piece of code that I almost lost count! <?php # Web Site performance test page if ($_REQUEST[pub] == "magpies") { $wowser = `ab -n100 -c5 http://www.example.net/robots.txt`; header("C ....

2741 - What is a factory?

A Factory is somewhere that takes raw material, and converts into objects of some value. And so it is in Object Oriented Programming, where a "factory method" takes a chunk of raw material and makes an object out of it. It may differ from a constructor in that we may not know what type of object ....

2740 - Melksham Hustings at George Ward School

For the first time in my life, I attended election hustings last night in Melksham - at George Ward School, where six of the eight candidates for MP in the Chippenham Constituency gave a three minute intro to themselves and their policies, then answered for a minute each on pre-selected questions fr ....

2739 - Melksham Scouts

St George's Day... and an excellent excuse for the Scouts, Cubs and Beavers of Melksham to hold a Jamboree. Here's the scene at 13:30 today, Sunday, as they marched past Well House Manor, band in the lead, to assemble at... the Assembly Hall. I'm rather suspecting that we had more that just Melksha ....

2738 - What is all this SESSION stuff about? (PHP)

If you're booking an airline flight online, you'll be taken through a series of screens to select route, dates, times, passengers, seats, then to enter payment details, and perhaps visa / government information too. It would be impractical to do the whole job on a single page, as you need the inte ....

2737 - Improving your function calls (APIs) - General and PHP

Some of the code at the Civil Service Department (CSD) where I worked on manpower planning models some 35 years ago would not have stood up to analysis against modern programming practice (but then ... that WAS 35 years ago). Indeed, some of the code "behind the curtains" didn't even stack up prope ....

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