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3799 - Ruby Documentation through rdoc
There are three vital elements in any code of significnat size that you write. • There's the code itself • There are programmer's comments which provide an overview of the internals and remarks on how you've done things, why certain decisions were made, known issues for future maintainer ....

3798 - When you should use Object Orientation even in a short program - Python example
I was training earlier this week in a room with a view - a view of a major link road towards Cambridge City centre, and I was struck by the very different mix of vehicles travelling along the road compared to what I would expect to see in Wiltshire. And - ever keen to have new, relevant data sets av ....

3797 - zip in Python
Zipping has become synonymouse with compressing data in programming terms; originally the use of the word in that sense came from zipping up a bag so that a whole lot of contents were held together, but these days the compression (pushing everything into the bag) is kind of expected. Python's zip f ....

3796 - Backquote, backtic, str and repr in Python - conversion object to string
The backquote or backtic operator in Python is a pseudonym for the repr function. If you have an object that you want to convert into a string (to manipulate it, store it, print it out), Python may call one of two standard method: __str__ (also the str function) converts an object into a human-rea ....

3795 - Like a bathroom company with no plumbers
If I ran a bathroom installation company, I would have chippies, plasterers, tilers, laboureres and plumbers to help me. Customers would be looking for a complete job, and if I was missing any one trade - say I had no plumbers - then the rest of my team would be pretty idle with only the occasional ....

3794 - Should hotel staff sit on the toilet in the customer bedrooms?
Yes, they should - for by doing so, they can see the rooms and the facilities as the customer sees them. It will help them check the good points, and identify places where things need attention that perhaps wouldn't be noticed in a day to day clean. Actually, I'll go further. Staff should stay oc ....

3793 - Excellent Rail News - what it really means
It's been a good week for "Improving Rail Services in Wiltshire". On Tuesday, the first steam train in about 50 years called at Melksham, taking people out for a day trip to Canterbury. On Wednesday, the Department for Transport announced that Wiltshire Council's LSTF (Local Susutainable Transport ....

3792 - Managing daemons from a terminal session
If you want to manage a daemon on a Linux system, how do you do it? • It's likely that you cannot log in directly as the dameon user, as the account will almost certainly not have a valid encoded password string, so every attempt to give a password (including just pressing "enter" when asked) ....

3791 - The Kernel, Shells and Daemons. Greek Gods in computing
The Greek Gods didn't like washing up or ironing. So they employed mortals to to it. Problem was that those mortals didn't last for ever, and sometimes went on strike over one thing and another. So The Gods did a deal with some of the current batch of mortals, and it went like this: "We will make ....

3790 - Solution looking for a problem? Lookahead and Lookbehind
There are some things that it's just plain difficult to find good, practical examples to show delegates on training course. "Solutions looking for problems" I call them sometimes. And one such group are lookahead and lookbehind in regular expression. However, I think I did a bit better yesterday ....

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