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3092 - wxPython geometry - BoxSizer example
Rather than manually position each of your widgets in a window in wxPython, you can use a Sizer; there are various type of GridSizer that let you define rows and columns of widgets, and there's a BoxSizer which lets you set up either a single row or a single column. Here's a single column example. ....

3091 - How do regular expressions work / Regular Expression diagrams
If you want to help yourself work out what a regular expression means, you can draw a regular expression matching flow chart such as this one. I've taken the regular expression .*@.* - a very basic "it might be an email address" filter - and sketched out how the regular expression engine actually m ....

3090 - Matching to a string - what if it matches in many possible ways?
If you're looking to match and capture part of a string that matches your pattern, you have to be very careful to ensure that you match the correct part of the incoming string. If - for example - I were to ask you what 3 digit numbers the text "I live at 404 and my phone number is 708225" contains, ....

3089 - Python regular expressions - repeating, splitting, lookahead and lookbehind
If you're looking for part of a string that's repeated again later in the string, you can capture the first occurrence and then use a back reference (\1, \2 etc) to refer to "same again". In Python, you can also name the element that you want to repeat - examples [here]. If you have a number of fi ....

3088 - Melksham - two many councils?
I've only lived in Melksham for ten years - so I may be asking a very delicate question that's steeped in history - but can anyone tell me why we have separate councils for Melksham Town and Melksham Without? The various parts of Melksham rely on one another to make a complete community - with the ....

3087 - Making the most of critical emails - reading behind the scene
You can't please 100% of the people 100% of the time. So if you have a public facing website with anything like a reasonable number of visitors (we had accesses from over 16,000 different IP addresses in the last 24 hours), you're bound to have a few visitors who aren't totally delighted with what ....

3086 - Sizers (geometry control) in a wxPython GUI - a first example
In all GUI (Graphic User Interfaces), you define components / widgets, you define how they're laid out, and you define what's to happen when an even occurs, such as a button is pressed. All this definition can take quite a lot oflines of code, and it's not uncommon to find even 'simple' examples in ....

3085 - Object Oriented Programming for Structured Programmers - conversion training
I've been programming for many years; I started off with languages like Fortran and quickly learned that it's a good idea to split the code into named chunks - which were known as FUNCTIONs and SUBROUTINEs. This means that parts of a program can be tested named chunk by named chunk, that chunks ca ....

3084 - Can you trust the big brand names?
I tread with great care if I post criticism of "big names" as I don't want big guns turned on me (yes, I'm vain enough to imagine that this may be being read;-) ). But here are a couple of example of what I consider to be appalling advertising, over the last few days, from big names mis-selling the ....

3083 - Python - fresh examples from recent courses
During courses, I write a lot of examples in front of delegates so that the get to see both a program to perform a certain task and how that solution was reached - after all, they'll be expected to modify and write programs after the course, and just showing them the final result would only be telli ....

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