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3439 - Python for loops - applying a temporary second name to the same object
If you write a for loop in Python to go through each element of a list, you assign an extra (temporary) name to each member of the list while within the loop. So than any changes made to the named variable will also be changes to the object in the original list. However, that's overshaddowed / over ....

3438 - Melksham to become a part of Trowbridge?
Initial proposals for change have been made by the boundary commission for Parliamentary Constituencies in the South West - published in full [here]. As part of their pre-amble, they write: "The South West region has been allocated 53 constituencies – a reduction of two from the current arr ....

3437 - Light bulbs
Little did we realise in 2006 when we installed light fittings and shades at Well House Manor that took standard 60w fillament bulbs that we would be unable to purchase such bulbs any longer just five years later. And that what's on offer as replacements have different characteristics. All of the ....

3436 - Moving from scripting to Object Orientation in Python
Using what's been described as the scripting idiom, a "scripter" will write a series of code steps which perform a task from top to bottom. For a job that only involves simple data manipulation (even if there's a lot of data to have that manipulation applied), this approach can be very effective in ....

3435 - Sorta sorting a hash, and what if an exception is NOT thrown - Ruby
Some gems from last week ... 1. Ruby's begin and rescue clauses allow you to catch anything exceptional that could derail your program. But did you know that you can also add an else clause to be run only in the event of there being no exception? There's an example from last week's Ruby course ....

3434 - Sundays - and over eating
It's now 2 weeks since the last of our extra summer trains on the TransWilts line, which provided a new opportunity for many for a day out. On the final Sunday, 440 people travelled on the extra morning trains, with around 250 of them returning on this train - the 19:37 Westbury to Swindon, and ar ....

3433 - Exceptions - a fail-safe way of trapping things that may go wrong
As part of a previous post, I was looking at the "Internal Server Errors" logged on our web server over the past 3 months ... and I found one coming from a Python / CGI demonstration which I wrote and uploaded for a delegate a couple of months back. Internal server error 500 (by default on Apache h ....

3432 - 3 digit HTTP status codes - what are they, which are most common, which should be a concern?
We often talk during web related course / course modules about the status codes that are returned by servers - but I don't think I've ever written up a (near?) complete list. They are all three digit codes, and they're grouped by hundreds - so 200 series code are success, 400 codes are requests th ....

3431 - Ruby at both extremes of your website
Q: How is Ruby used on the web? A: At both extremes. Here's a web server ... serving documents and programs (on the right) to browsers (on the left). On the server, here is Ruby on a Rails Framework on the right. Requests to the Web Server are passed to the routing section of Rails, then routed ....

3430 - Sigils - the characters on the start of variable names in Perl, Ruby and Fortran
A sigil (from Latin sigillum "seal") is a symbol created for a specific magical purpose. A sigil is usually made up of a complex combination of several specific symbols or geometric figures, each with a specific meaning or intent. In computer programming, a sigil is a special symbol attached to a va ....

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