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2994 - Python - some common questions answered in code examples
Some tips and new examples from last week ... Python in Plymouth! • How do I put comments in a Python regular expression to make it more readable: [source] • How do I use a python dictionary as a table of counters - in our example, counting the number of people in our team who have each ....

2993 - Arrays v Lists - what is the difference, why use one or the other
If you want a program to run quickly through a data set (that's the sort of thing you'll be doing in heavy scientific work), you'll want the data loaded into successive memory locations - but that means that you have to know how much space to allocate before you set the data up. Otherwise, you'll f ....

2992 - Matplotlib - graphing in Python - teaching examples
Matplotlib provides Python with a graph drawing and data representation tool that is extremely flexible - in fact so flexible that it's hard for the newcomer to know where to start. The following examples are very straightforward, but useful, graphs showing real data sets (from the second example o ....

2991 - Loading and saving data - Python / numpy
If you're using big data sets in Python, you're probably using the numpy module - providing you with fast data handlers at C speed of running, and Python coding speed. But how do you load that data in? Numpy also provides a number of data handlers, data setup routines, and also a save and restore ....

2990 - What are numpy and scipy?
In Python, all the operators are really methods - in other words, you write   c = d + e and you're really writing   c = d . __add__ ( e ) So this means that it's possible to use the language to handle data of any sort, including data types that aren't supported at standard. It ....

2989 - Oddballs in Plymouth
I've been staying in Plymouth this week - and some evenings I've had a brief opportunity to walk around and see some of the sights of the city. Here are some of the more "oddball" pictures ... not quote the standard tourist views of the Hoe and the Barbican. This has been a tough ....

2988 - Not mugged in London!
Lisa and I are fine ... but that's not what a friend on Facebook was told - that friend was told by someone claiming to be Lisa that she (Lisa) had been mugged in London and needed money sent ... urgently ... by this friend from another country. If anyone claiming to be either of us ask you to send ....

2987 - Memorial to a day in 1999
Walking along the seafront in Plymouth last night, I was delighted to see, set in the footway, a memorial to the day that we completed the purchase of our home in Melksham. At that time, "404" was uninhabitable - the only water coming in through a lead pipe to a tap; which wasn't over a drain, no l ....

2986 - Python dictionaries - reaching to new uses
If it sounds easy, it should be easy. "Go through a file and echo the lines ... but if a line's duplicated, echo it only once". This was a sample application requested on today's Python course ... but one which has been troubling the folks for a while as they tried to filter the data in other lang ....

2985 - Right place, right season
When you go on holiday, you get to choose when, where, and what to do with your time, but that's not the case with an on site training course. So the chance of being somewhere I really want to see, at a time of year when the weather and daylight makes it worth seeing, is slim. But - jus ....

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