Re: [Hampshire] Southampton Python User Group

2016-07-05 Thread Thomas Kluyver via Hampshire
Thanks Chris - I'll keep announcing the meetings here unless I get
complaints, then. :-)

We're aiming to do about one meeting per month, so this shouldn't be a
lot of messages.

On Tue, Jul 5, 2016, at 10:11 PM, Chris Edsall wrote:
> Hi,
> 
> While the question wasn't addressed to me, I'll chip in: from my 
> perspective, yes, please do continue to Cc: the announcements to this 
> list. This was the only place I heard about it. I too went along, and as 
> a somewhat experienced python user still got several useful things out 
> of it (let alone the free pain au chocolat!)
> 
> I guess someone could argue that a Linux list would get overrun by 
> cross platform language user groups like (for e.g.) perl, ruby and 
> javascript, but I think the volume is low enough and the relevance high 
> enough to cope.
> 
> Cheers,
> Chris Edsall
> 
> On 2016-07-05 21:57, Thomas Kluyver via Hampshire wrote:
> > Thanks Roger; I'm glad you enjoyed it, and I hope to see you at 
> > future
> > events.
> >
> > Do you think I should continue to notify this list about our Python
> > meetings, or would that be off topic?
> >
> > On Tue, Jul 5, 2016, at 06:32 PM, Roger Munford wrote:
> >> Just got back from the event and it was excellent.
> >>
> >> Thank you Thomas
> >>
> >>
> >> On 30/06/2016 12:18, Thomas Kluyver via Hampshire wrote:
> >> > Hi all,
> >> >
> >> > We're starting up a Python user group in Southampton, and I 
> >> thought
> >> > there might be some overlap of interests with this list. Our next
> >> > meeting is at 6pm on Tuesday (5th July), when we'll be hearing 
> >> from
> >> > Robin Wilson about how he wrote Python code in one weekend to 
> >> process
> >> > millions of mobile phone data records after the Nepal earthquake 
> >> last
> >> > year.
> >> >
> >> > When: 6pm, Tuesday 5th July
> >> > Where: University of Southampton, Murray Building (Building 58), 
> >> Room
> >> > 1023 - see http://maps.southampton.ac.uk/
> >> >
> >> > http://southampton-python.github.io/
> >> >
> >> > There will be refreshments provided beforehand, and we'll go to a 
> >> pub
> >> > after the talk. We'll also give anyone the chance to do a 
> >> five-minute
> >> > lightning talk.
> >> >
> >> > I'm not sure what's OK on this list, so my apologies if this is 
> >> off
> >> > topic.
> >> >
> >> > Thanks,
> >> > Thomas
> >> >
> >>
> 

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Re: [Hampshire] Southampton Python User Group

2016-07-05 Thread Thomas Kluyver via Hampshire
Thanks Roger; I'm glad you enjoyed it, and I hope to see you at future
events.

Do you think I should continue to notify this list about our Python
meetings, or would that be off topic?

On Tue, Jul 5, 2016, at 06:32 PM, Roger Munford wrote:
> Just got back from the event and it was excellent.
> 
> Thank you Thomas
> 
> 
> On 30/06/2016 12:18, Thomas Kluyver via Hampshire wrote:
> > Hi all,
> >
> > We're starting up a Python user group in Southampton, and I thought
> > there might be some overlap of interests with this list. Our next
> > meeting is at 6pm on Tuesday (5th July), when we'll be hearing from
> > Robin Wilson about how he wrote Python code in one weekend to process
> > millions of mobile phone data records after the Nepal earthquake last
> > year.
> >
> > When: 6pm, Tuesday 5th July
> > Where: University of Southampton, Murray Building (Building 58), Room
> > 1023 - see http://maps.southampton.ac.uk/
> >
> > http://southampton-python.github.io/
> >
> > There will be refreshments provided beforehand, and we'll go to a pub
> > after the talk. We'll also give anyone the chance to do a five-minute
> > lightning talk.
> >
> > I'm not sure what's OK on this list, so my apologies if this is off
> > topic.
> >
> > Thanks,
> > Thomas
> >
> 

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[Hampshire] Southampton Python User Group

2016-06-30 Thread Thomas Kluyver via Hampshire
Hi all,

We're starting up a Python user group in Southampton, and I thought
there might be some overlap of interests with this list. Our next
meeting is at 6pm on Tuesday (5th July), when we'll be hearing from
Robin Wilson about how he wrote Python code in one weekend to process
millions of mobile phone data records after the Nepal earthquake last
year.

When: 6pm, Tuesday 5th July
Where: University of Southampton, Murray Building (Building 58), Room
1023 - see http://maps.southampton.ac.uk/

http://southampton-python.github.io/

There will be refreshments provided beforehand, and we'll go to a pub
after the talk. We'll also give anyone the chance to do a five-minute
lightning talk.

I'm not sure what's OK on this list, so my apologies if this is off
topic.

Thanks,
Thomas

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Re: [Hampshire] HTTPS Certificate problem

2017-02-01 Thread Thomas Kluyver via Hampshire
I'm not at all an expert on HTTPS, but if you're running a public web
server now, the standard advice is to use letsencrypt
(https://letsencrypt.org/ ) to create certificates. They're free and you
can get them from an API, but unlike a self-signed certificate, it will
be trusted by all major browsers.

Thomas

On Wed, Feb 1, 2017, at 08:58 PM, Stephen Davies via Hampshire wrote:
> Along with the general move to using HTTPS I configured my webserver to 
> allow HTTPS connections.
> 
> However one of my users reported this error.
> 
> The certificate is not trusted because it is self-signed. The 
> certificate is only valid for bonzo.lan The certificate expired on 21 
> January 2017 at 13:51. The current time is 1 February 2017 at 20:49. 
> Error code: SEC_ERROR_UNKNOWN_ISSUER
> 
> 
> Some expert guidance on how I can resolve this would be most welcome. 
> The system was built just over a year ago hence the certificate expiry. 
> As it said, the cert currently in use is self signed but as yet I've not 
> explicitly done anything regarding certs in the webserver.
> 
> Thanks,
>   Stephen Davies.
> 
> 
> 
> 
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Re: [Hampshire] Testing your code with CircleCI - 6pm Thursday 4th August, Southampton Uni

2016-08-05 Thread Thomas Kluyver via Hampshire
Thanks Andy!

Would anyone on this list be interested in doing a talk for a future
meeting? We're loosely focussed on Python, but we'd be very happy to
hear about other technologies that are useful for Python programmers,
interesting applications, and so forth. :-)

Best wishes,
Thomas

On Fri, Aug 5, 2016, at 12:34 PM, Andy Random via Hampshire wrote:
> 
> Thanks Thomas,
> 
> It was an interesting meeting.
> 
> CircleCI looks like quite a nice way to do automated testing on open 
> source projects without having to do the work to set up your own CI 
> infrastructure.
> 
>Andy
> 
> On Fri, 29 Jul 2016, Thomas Kluyver via Hampshire wrote:
> 
> > Hi all,
> >
> > The next Southampton Python User Group talk will be a bit more hands on;
> > it's best to bring a laptop if possible:
> >
> > Continuous Integration with CircleCI
> >
> > Date: 6 p.m. 4th August 2016
> > Venue: Nuffield Theatre Room 1083 (6/1083)
> > Speaker: Ryan Pepper, Alvaro Perez-Diaz, Uni of Soton
> >
> > As usual, refreshments will be provided before the talk, and everyone is
> > welcome to join us in the pub afterwards.
> >
> > There will also be a chance to give brief lightning talks - perhaps
> > about other tools for testing code. If there's something you'd like to
> > tell people about, let me know!
> >
> > 
> > Continuous integration (CI) is an integral part of modern software
> > development. It is very useful to check that changes have not broken
> > features in software in an unexpected way, and it would be very rare to
> > find software developers based in companies not using at least some form
> > of regular testing to ensure that regression does not occur. Major
> > scientific software projects such as Numpy, Scipy and Jupyter are good
> > examples of how to use CI in practice.
> >
> > In this talk, we'll give a brief introduction to continuous integration,
> > how it can be used in scientific software development, and demonstrate
> > how to set up CircleCI to automatically test an open source project
> > which is written in Python and stored on GitHub. Bring a laptop with you
> > if possible, to get the most out of the talk.
> >
> > -- 
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Re: [Hampshire] ELF problem

2016-09-01 Thread Thomas Kluyver via Hampshire
On Thu, Sep 1, 2016, at 05:48 PM, Peter Alefounder via Hampshire wrote:
> I can only guess that the program isn't expecting a 64-bit system. Is 
> there any way round this?

If it's a 32-bit program, it will need a complete set of 32-bit
libraries. It's possible to install these on a 64-bit system, but if you
can find what distro it was meant to run on, it might be easiest to
install that in a VM.

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[Hampshire] Robotic Sailing talk, Monday 3rd October (Southampton Python group)

2016-09-27 Thread Thomas Kluyver via Hampshire
Hi all,

The next Southampton Python User Group meeting will be on Monday, with a
talk about robotic sailing:

When: 6pm, Monday 3rd October
Where: Room 1083, Nuffield Theatre (Building 6), University of
Southampton.
(Right by the university bus interchange, if you're coming on public
transport)

The speaker, Sophia Schillai, led a team from the University which
earlier this month won the small boats class of the World Robotic
Sailing Championship in Portugal.

As usual, after the talk there will be a chance to give lightning talks
- the suggested theme is robots, sensors, and code that interacts with
the physical world. If you'd like to give a brief (maximum five minutes)
talk, please let me know!

Refreshments will be provided, and we'll go to a nearby pub afterwards
for drinks and food.

Best wishes,
Thomas

-

Sophia led a team from the University of Southampton which recently won
the World Robotic Sailing Competition (Micro Sailboat class). Come and
hear about how we used Python and Linux to make a boat sail itself,
including:

- Why is it so hard to make a robot sail?
- What happened to us at the World Robotic Sailing Championship (besides
winning it)?
- Who are ROS and Brian?
- What tools did we combine to make the Black Python sail?

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Re: [Hampshire] Robotic Sailing talk, Monday 3rd October (Southampton Python group)

2016-09-28 Thread Thomas Kluyver via Hampshire
On Wed, Sep 28, 2016, at 10:54 AM, Gordon Scott via Hampshire wrote:
> Why would I want a robot if I can just lash the tiller, trim the mizzen 
> and sit back and marvel at what the old lady does all on her own?

A speaker introducing the conference after the competition did trace the
history of autonomous sailing back to Francis Drake rigging fire ships
to be blown into the Spanish Armada. We were trying to achieve a bit
more control, however!

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Re: [Hampshire] Robotic Sailing talk, Monday 3rd October (Southampton Python group)

2016-09-28 Thread Thomas Kluyver via Hampshire
On Wed, Sep 28, 2016, at 02:22 PM, Gordon Scott via Hampshire wrote:
> I remember an article some years ago about a robot auto-navigation 
> voyage in which, as so often happens in cars, they'd put in a slightly 
> wrong name and the yacht ended up on the west coast of America, rather 
> than in Wales.

The West coast? That's some impressive navigation. There's an ongoing
contest to make a small robot boat cross the Atlantic, but as far as I
know it's not yet been managed:

http://www.microtransat.org/history.php

Thomas

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Re: [Hampshire] Robotic Sailing talk, Monday 3rd October (Southampton Python group)

2016-10-03 Thread Thomas Kluyver via Hampshire
On Mon, Oct 3, 2016, at 03:04 PM, Andy Random via Hampshire wrote:
> I'm hoping to be there, any idea how long the talk is?

The talk itself will probably be around 40 minutes; with the
refreshments and the lightning talks I guess it will be an hour or a bit
over in total.

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Re: [Hampshire] How to get a laptop with Linux?

2016-11-03 Thread Thomas Kluyver via Hampshire
System76 do a range of laptops with Ubuntu; they're US based, but ship
internationally:
https://system76.com/laptops

Dell sell a few laptops with Ubuntu installed. The UK site usually seems
to say they're unavailable, but maybe a phone call would have better
results. The XPS 13 in particular is a pretty nice laptop.
http://www.dell.com/learn/uk/en/ukbsdt1/campaigns/dell-linux-ubuntu-en?c=uk=en=bsd

I think people mostly still buy Windows laptops and install Linux
themselves. It's generally pretty smooth, but it's worth planning before
you buy. Things I know to look out for:

- Stick to Intel graphics unless you're keen to play games on it. Nvidia
and AMD graphics do mostly work OK with their proprietary drivers, but
it's a bit of extra hassle.
- Try to find out what wifi chipset it uses and check what Linux support
is like. Again, you can make just about anything work with some
fiddling, but some are easier than others.

Thomas

On Thu, Nov 3, 2016, at 05:58 PM, Peter Alefounder via Hampshire wrote:
> What is the best way to acquire a laptop running Linux these
> days? Various web searches haven't helped me much. Some sites say
> it's better to get one running Windows, then install Linux.
> However, I get the impression that it can be difficult to have
> all the hardware working properly, because of a lack of Linux
> drivers. Other web sites list various laptops with Linux, but
> they turn out to be either extremely expensive, or very low-end,
> or currently out of stock. It appears that building one is not 
> feasible as, unlike desktop machines, hardware is not standard.
> 
> I understand that people do have laptops running Linux, so how is 
> it done? I would be grateful for any advice.
> 
> Peter Alefounder.
> 
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Re: [Hampshire] How to get a laptop with Linux?

2016-11-04 Thread Thomas Kluyver via Hampshire
On Fri, Nov 4, 2016, at 09:03 AM, Bob Dunlop via Hampshire wrote:
> Avoid modern Lenovo [1].  Although they've reluctantly issued a BIOS
> fix it sounds like it a performance hit.

Lenovo's Thinkpad line is still mostly pretty good with Linux, at least
when I was looking last year. Those business-oriented systems seem to be
developed separately to the consumer-grade ones which get in the news
for the wrong reasons. The business lines are more expensive, but you do
get a better built system.

Is anyone interested in distilling the kind of info we're discussing
into a nice 'how to buy a computer for Linux' website? Is there already
such a site? I did one quick search and found posts like these:
http://www.howtogeek.com/185286/how-to-buy-a-laptop-for-linux/
http://www.ebay.com/gds/Linux-Laptop-Buying-Guide-/1000177741943/g.html

...but no nice friendly overview site. Maybe this is something we could
discuss/work on at a future PLUG meeting.

Thomas

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Re: [Hampshire] Best place to buy a Raspberry Pi?

2017-01-09 Thread Thomas Kluyver via Hampshire
On Mon, Jan 9, 2017, at 06:27 PM, Andy Random via Hampshire wrote:
> So where is the best place to buy one?

I haven't bought one either, but I was looking around before Christmas.

There are dedicated sites based in the UK like Modmypi and Pimoroni,
where you can get the boards with a wide selection of accessories, or a
bundle like this one:
https://shop.pimoroni.com/products/raspberry-pi-3-essentials-kit

They probably pay more taxes (proportionally) than Amazon. I think one
of these would be my first choice if I do buy one.

You can get them in Maplin, but I think the one I visited had large &
pricey kits. On the website, they have the boards by themselves at
~10-20% over what you'd pay elsewhere.

> I'm looking for a Pi with wifi (Pi 3 model B?)

The Pi 3 is the only one (so far) with built in wifi, but if you can get
an older board significantly cheaper, there are little USB wifi dongles
which work with them.

Thomas

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[Hampshire] Southampton Python meeting - detecting clickbait using machine learning

2017-04-20 Thread Thomas Kluyver via Hampshire
Hi all,

The next Southampton Python User Group meeting will be a workshop on
text processing and machine learning. If you're coming  to this, please
bring a laptop to get the most out of it.

Detect clickbait with machine learning

Date: 6pm-7.30pm 3rd May 2017
Venue: University of Southampton, Nuffield Theatre Room 1083 (6/1083) -
see https://maps.southampton.ac.uk/
Speaker: Oliver Laslett, Uni of Southampton

Oliver has kindly agreed to run his tutorial which has already been
accepted for PyData London, so this should be a really interesting
session! Because this session is interactive, it will be a bit longer
than our typical meetings: around 90 minutes.

Nearer the date, a link to the tutorial materials will be available on
the SPUG website and Google group. I won't spam other lists again for
that, so keep an eye out if you're interested.
http://southampton-python.github.io/

As usual, refreshments will be provided before the talk, and everyone is
welcome to join us in the pub afterwards.

Thanks,
Thomas



With this one weird trick you can build a text processing pipeline!

We've all fallen for clickbait articles online. They pollute our news
feeds and make it harder to filter out valuable information. In this
workshop we'll stream news articles in real-time and detect clickbait
using simple machine learning techniques.

By the end of the workshop you'll have your very own python app for
streaming real-time news and detecting click bait. In the workshop we'll
cover:

- Streaming data from a REST API
- Preprocessing textual data
- Training a simple machine learning classifier for clickbait
- Putting everything together in a scikit-learn pipeline
- Analysing our results (which news source is the most clickbaity?)

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Re: [Hampshire] Raspberry Pi based Air quality monitoring project

2017-05-09 Thread Thomas Kluyver via Hampshire
On Tue, May 9, 2017, at 10:19 AM, Roger Munford via Hampshire wrote:
> They have raced ahead developing the monitor but have now reached the 
> point of early deployment and have come against an unexpected problem. 
> How to organise themselves. They are about to receive some grant funding
> but need some sort of organisation to account for cash flow, insurance 
> and some expenses so far small but becoming significant. They want to be 
> non profit making and totally open source as you would expect butt hey 
> need advice on a structure. Any suggestions?

It might be sufficient to organise as a university society - it's not
unusual for student societies to handle some money. The sailing robot
project I presented a couple of months ago is organised as the 'Maritime
Robotics Student Society', and we were able to accept some money from
the university and manage it through the university finance system.

I don't know much about the organisational side of our project, but I
could put them in touch with the people who do if they want to know more
about what we did.

Thomas 

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Re: [Hampshire] Linux laptop

2017-05-02 Thread Thomas Kluyver via Hampshire
On Tue, May 2, 2017, at 12:33 PM, Peter Alefounder via Hampshire wrote:
> If I were to get one of these:
> 
> https://www.tesco.com/direct/acer-156-es15-intel-celeron-4gb-ram-1tb-hdd-dvdrw-red-laptop/392-0906.prd?skuId=392-0906=sku_cmp=ppc*PX+-+DNF+Electrical*PX+-+Shopping+GSC+-+Argos+-+Technology+-+Electricals*PRODUCT+GROUP392-0906*=COLH6NjdlNMCFdUV0wodWCkLEA=aw.ds
> 
> would any problems be expected with installing Linux on it?

There isn't much detail there on what parts it uses, but the most likely
problems in my experience are:

1. Graphics cards: If you're not interested in gaming, stick to Intel
integrated graphics. Nvidia and AMD cards are more powerful, but the
proprietary drivers introduce extra complications, and the open source
ones may not be as robustly tested. Intel graphics play nicely with
Linux.
2. Wifi - I'm less sure what to look for, but I think Intel chipsets are
a good bet again. Again, the vast majority of chips will work, but some
of them are more hassle than others.

Any new laptop probably has UEFI secure boot - mainstream distros like
Ubuntu/Fedora should be OK with that, but if you want something more
niche, you may need to turn it off in the BIOS.

A search with the model number turned up one issue reported with the
touchpad:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1593943

And a few threads about issues with the E15, but hopefully that's not
the same as ES15.

> I sent an enquiry to Acer, but have no reply.

I wouldn't expect them to offer any useful info. Consumer support will
usually just tell you that Linux is not supported, and possibly warn you
about voiding the warranty.

Thomas

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Re: [Hampshire] Home user Linux Support opportunities in Southampton/Eastleigh area?

2017-09-20 Thread Thomas Kluyver via Hampshire
On Tue, Sep 19, 2017, at 09:06 PM, Imran Chaudhry wrote:
> Since everyone has a phone
> or tablet these days it might be more traction. Lets see.

Yes, anecdotally it does seem like many people are using phones &
tablets at home now rather than desktops & laptops. I'm thinking of
offering to do a PLUG talk on FOSS for phones (not that I know much
about it, but doing a talk is a good way to learn).

Thomas

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Re: [Hampshire] Home user Linux Support opportunities in Southampton/Eastleigh area?

2017-09-20 Thread Thomas Kluyver via Hampshire
On Wed, Sep 20, 2017, at 06:27 PM, Paul Tansom via Hampshire wrote:
> Sounds good to me, we have a gap next month I'm trying to fill - or any
> month after that if anyone is interested. Any talks most welcome ;-)

I can't make the October meeting, unfortunately. I think I can make
November, but please check that with me in late October!

Thanks,
Thomas

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Re: [Hampshire] Home user Linux Support opportunities in Southampton/Eastleigh area?

2017-09-14 Thread Thomas Kluyver via Hampshire
On Thu, Sep 14, 2017, at 08:44 PM, Imran Chaudhry wrote:
> Thanks for that Thomas, this is the first I've heard about the Repair
> Cafe concept but I fully support the idea.> 
> I will try to pop along to the next one in October.

Cool! Shall I put you in touch with the organiser?

> In the meantime I've decided to try and run a local "setup your own
> Linux laptop"  course to generate my own clientele. I'll report back
> here on how it goes.
I look forward to hearing how it goes. How are you making people
aware of it?
Thomas
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Re: [Hampshire] Home user Linux Support opportunities in Southampton/Eastleigh area?

2017-09-10 Thread Thomas Kluyver via Hampshire
Hi Imran,

It's not a business, but I recently started helping at the Southampton
repair cafe, which runs monthly on the first Saturday of the month.
Among other things, people bring in computers and electronic devices to
be repaired. There's an explicit aim to help people keep using stuff
rather than throwing it away and replacing it, which fits with one of
the reasons people promote desktop Linux. Of course, most of the
computers that come are Windows or Mac systems, though.

The website unfortunately is down at the moment, and apparently the
webmaster is on a long holiday, but here's the latest snapshot from the
wayback machine:
https://web.archive.org/web/20170611132036/http://transitionsouthampton.org/

If people at the cafe need more than ~30 minutes of help, I imagine you
could offer your services for a later date. But obviously it would be
disrespectful to treat the volunteer-driven event primarily as a chance
to promote one's own services.

Best wishes,
Thomas

On Sun, Sep 10, 2017, at 02:25 PM, Imran Chaudhry via Hampshire wrote:
> Hello all,
> 
> A few months ago I helped out a local Linux user with their laptop
> problems. I left them a very happy customer with a much more modern,
> up-to-date laptop running Debian with their (non-trivial!) e-mail
> system up and running.
> 
> It took probably 4 visits and 5+ hours to sort everything out. I
> charged and got paid a fair, reasonable hourly rate for it (much less
> than the commercial PC support businesses were charging).
> 
> I really enjoyed the experience and the "customer" suggested I should
> explore doing it as a part-time "business" because I displayed a patient,
> service-oriented nature.
> 
> Does anyone know in Hampshire LUG know of opportunities in this around
> the Southampton/Eastleigh area? I have put up several flyers around my
> area but so far I have had no response. I mentioned that I'm a "Linux
> specialist" but I expect the majority to be running Windows I guess.
> It may just be that this particular customer is pretty unique because
> they were Linux user since 2000 but someone else did the technical
> set-up who had since got out of touch.
> 
> I would only be doing this mainly for fun, experience and to earn a
> bit of "pin-money". If it's too much like a business it takes the fun
> out of it.
> 
> Any ideas/thoughts/comments? Anyone tried this already? Thanks.
> 
> -- 
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[Hampshire] Southampton Python talk, Thursday 5th October

2017-09-26 Thread Thomas Kluyver via Hampshire
Hi all,

Southampton Python will be having a talk a week on Thursday. 

Title: Sustainable Scientific Software Development
Speaker: Alice Harpole, University of Southampton
Time: 6pm, Thursday 5th October
Venue: University of Southampton, Building 7 Room 3023

Here's a university map to help find building 7:
http://maps.southampton.ac.uk/#17/50.93540/-1.39640

Alice is a PhD student here at the University of Southampton, and a
fellow of the Software Sustainability Institute, so she's well placed to
talk about this topic. For more details of what she plans to talk about,
see: http://southampton-python.github.io/

We make time for one or two lightning talks after the main talk. These
are no more than five minutes long, and they're a great opportunity to
share a little bit of information about something related to scientific
computing or to Python in general.

There will be refreshments provided before the talk starts, and there's
usually a group going to a nearby pub afterwards for drinks or food.

I hope to see some of you there!

Thomas


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[Hampshire] Southampton Python talk - testing with pytest, 29th November

2017-11-16 Thread Thomas Kluyver via Hampshire
Hi all,

There's another southampton-python talk coming up, this time about
testing.

**Python testing with pytest: motivation, demonstration, and practices**
Mark Vousden
When: 6pm, Wednesday 29th November
Where: Southampton University, Building 6 (Nuffield Theatre), Room 1081
http://southampton-python.github.io/

Mark recently finished his PhD, and now works for Blupoint, an
organisation trying to make digital technology useful to communities
where internet access is severely limited.

As usual, there will be some time after the main talk for lightning
talks, up to five minutes each. If there's a tool, technique or idea
you'd like to tell people about, please let me know.

We'll provide refreshments before the talk, and there's an open
invitation to go to a nearby pub for drinks or food afterwards.

Hope to see you there,
Thomas

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[Hampshire] Southampton Python talk - data visualisation

2018-02-26 Thread Thomas Kluyver via Hampshire
Hi all,

This is quite short notice, but the Southampton Python group is having a talk 
about data visualisation on Wednesday (28th February):

**Visualising Data interactively**
Nana Abankwa
When: 6pm, Wednesday 28th February
Where: Southampton University, Building 6 (Nuffield Theatre), Room 1077
http://southampton-python.github.io/

As usual, there will be some time after the main talk for lightning talks, up 
to five minutes each. If there's a tool, technique or idea you'd like to tell 
people about, please let me know. I'm keen to get more lightning talks - they 
can be a lot of fun both to give and listen to - so have a think if there's 
anything people might be interested in.

We'll provide refreshments before the talk, and there's an open invitation to 
go to a nearby pub for drinks or food afterwards.

Hope to see you there,
Thomas

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Re: [Hampshire] Portsmouth and South East Hants LUG - SURPRISE NO APRIL MEETING!

2020-04-15 Thread Thomas Kluyver via Hampshire
Hi all,

Greetings from Edinburgh! I moved away a couple of years ago, but stayed on the 
list in case I happen to be down near there at the right time for a PLUG 
meeting. Sadly, that hasn't happened yet.

We had an EdLUG meeting on Jitsi recently, and it worked pretty well for most 
people, with a couple of caveats:

- We asked everyone to use Chromium/Chrome, because apparently one person on 
Firefox can cause issues for everyone. People are working on this, so hopefully 
it won't be necessary next time: https://github.com/jitsi/jitsi-meet/issues/4758
- A couple of people couldn't hear any sound until they allowed it to access a 
microphone.

Some people tested out Apache OpenMeetings as an alternative - I missed the 
test, but apparently there were more issues even with fewer people trying to 
connect.

Best wishes,
Thomas

On Wed, 15 Apr 2020, at 13:18, Paul Tansom via Hampshire wrote:
> I can't imagine anyone is expecting an April meeting, and days are merging 
> into
> each other at the moment, but I will just send out a confirmation that there
> will be no meeting.
> 
> I am looking into options for a virtual meeting though, so will update if/when
> I have something. If anyone has any preferences of timings or platforms they
> really don't want to use let me know. At the moment Jitsi in what I am looking
> at.
> 
> Watch the mailing list and/or website for updates on the status of the May
> meeting.
> 
> Keep safe.
> 
> Thanks,
> Paul
> 
> -- 
>  Pau Tansom  |  Aptanet Ltd.  |  https://www.aptanet.com/  |  023 9238 0001
> =
> Registered in England | Company No: 4905028 | Registered Office: Ralls House,
> Parklands Business Park, Forrest Road, Denmead, Waterlooville, Hants, PO7 6XP
> 
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Re: [Hampshire] Linux and LED Scrolling Signs

2020-10-26 Thread Thomas Kluyver via Hampshire
On Mon, 26 Oct 2020, at 08:59, Rob via Hampshire wrote:
> What we're after (for work) is a sign which shows either 
> something like "All Systems Go" or lists the server(s) down.
> 
> I guess we could "sacrifice" a display and leave it on 24/7/365 but a 
> sign would seem to be a better (greener) solution.

From what you describe, this wouldn't change often, so maybe an e-ink display 
would be a green option? As I understand it, e-ink only requires power to 
update, so it can be very efficient for something that's mostly constant.

Second hand e-readers can be a cheap way to get a fairly large e-ink display. I 
was toying with this idea a few years ago, and found that old Kobo e-readers 
run Linux and are reasonably hackable - I think someone used one to display a 
weather forecast, for instance. That might be more involved than you want for a 
simple text sign, but I can dig out the links I found at the time if anyone is 
interested.

If you can spend a bit more money and/or accept a smaller display, you can get 
e-ink displays to use with Raspberry Pis or microcontrollers, e.g. 
https://shop.pimoroni.com/?q=eink

Thomas

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Re: [Hampshire] Laptop

2021-01-27 Thread Thomas Kluyver via Hampshire
On Wed, 27 Jan 2021, at 14:15, Gareth Evans via Hampshire wrote:
> Matlab has an online benchmarking tool, which may be useful if you can 
> try it on prospective machines...

The link you provided isn't an online benchmarking tool - it's the 
documentation for a benchmark function you can run in a Matlab installation. 
There's an online 'try this example' thing on each docs page, but that runs on 
a container somewhere 'in the cloud', so it doesn't tell you anything about the 
performance of the computer you're viewing the docs on.

Thomas

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Re: [Hampshire] Laptop

2021-01-27 Thread Thomas Kluyver via Hampshire
On Wed, 27 Jan 2021, at 10:05, Owain via Hampshire wrote:
> He currently has a Lenovo ideapad 510, which has a i3 processor (2.3GHz) and 
> 4G ram.  Having spoken to him more the problem seems to be not just with 
> matlab, though the way he's using that is memory intensive, as it reports 
> using 70ish % of memory even just with Firefox (2 tabs open) and the task 
> manager running.


That's no big surprise - I think memory is currently the limiting factor for 
most computers, and 4GB unfortunately doesn't stretch far these days. Browsers 
have essentially become operating systems, and complex web apps can use quite a 
lot of RAM (my about:performance currently shows one GMail tab using 140 MB).

However, it looks like you can install additional memory in at least some of 
the Ideapad range, e.g.: 
https://uk.crucial.com/compatible-upgrade-for/lenovo/ideapad-510-(15-inch)

Obviously double check the precise model if you're interested in doing that - 
it looks like there are quite a few flavours of Ideapad 510. But if that is a 
possibility, even a 16 GB stick is far cheaper than buying a new laptop with 8 
GB of RAM (many of the cheapest laptops still have only 4 GB).

Best wishes,
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Re: [Hampshire] Large Backup for long term storage

2021-04-06 Thread Thomas Kluyver via Hampshire
On Tue, 6 Apr 2021, at 13:49, Chris Ellis via Hampshire wrote:
> Have a look at backblaze.com, they offer some very compelling pricing.

I think this depends whether you can use their 'unlimited' personal backup ($60 
per year). If there's some 'fair use' policy that doesn't let you store 16 TB, 
then their 'B2' cloud service is more like $1000 per year for this much. Even 
Amazon's 'Glacier deep archive' would be around $360 per year (with extra costs 
if you need to retrieve it).

Some sources online reckon that good quality optical discs (but definitely not 
the cheap dye-based ones) are still a viable option, if you want to write the 
data once and then have it sit on a shelf for years. But Blu-Ray discs only go 
up to 50 or 100 GB per disc, which isn't practical for storing 16 TB. Sony 
sells 'optical disc archive' cartridges up to 5.5 TB, but it looks like the 
drive to write & read these costs thousands.

Thomas


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Re: [Hampshire] Large Backup for long term storage

2021-04-06 Thread Thomas Kluyver via Hampshire
On Tue, 6 Apr 2021, at 12:22, rmluglist2--- via Hampshire wrote:
> * Cloud (privacy issues and would mean an ongoing cost as well as a dreadful 
> time to upload 


I'm not particularly advocating this, but if you do go for the cloud option, 
the big 3 cloud providers all have services where they send hard drives to you, 
you fill them up and return them, instead of uploading data. AWS calls it 
'Snowcone', Azure 'Data box' and Google 'Transfer appliance'. You pay extra for 
this, naturally, but not much extra if the costs of cloud storage already look 
reasonable.

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Re: [Hampshire] Joint LUG Event: Lightning talks on Linux audio

2021-09-29 Thread Thomas Kluyver via Hampshire
We've had enough problems now that we're going to move over to the 
BigBlueButton server we use for EdLUG: https://links.taikedz.net/?id=bbb-edlug

On Wed, 29 Sep 2021, at 19:15, Gordon Scott via Hampshire wrote:
> On 29/09/2021 00:39, Paul Tansom via Hampshire wrote:
>> On Mozilla Hubs - spatially-dependent audio, because audio isn't 
>> complicated enough!
>
> Hmm ... a triumph of cleverness over usability I think.
>
> After trying to see ta shared screen without either having my view 
> blocked by someone else, or blocking their view, I gave up. And that 
> with only 16 of us at the time.  Maybe there's a more practical mode? 
> I'm afraid my patience had expired after 10 minutes of trying.
>
> Gordon.
>
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Re: [Hampshire] Joint LUG Event: Lightning talks on Linux audio

2021-09-30 Thread Thomas Kluyver via Hampshire
On Thu, 30 Sep 2021, at 09:25, Gordon Scott via Hampshire wrote:
> I can see Mozilla Hubs working for a small group chat ... book club or 
> similar.
> It appears to me fundamentally flawed with a speaker and shared screen(s).

Yeah, the need to position yourself close enough to the speaker to hear and 
where you can also see the screen seems like it's painstakingly recreating 
downsides of the real world which shouldn't affect online presentations.

I've used https://www.gather.town/ (not FOSS) for a work event before, which is 
a similar idea with a low-res 2D world. It also uses the idea that you can see 
& hear people near to you, but you can have a special square which allows 
anyone standing there to address the whole group, like a PA system. It worked 
pretty well, but even so, I think it only makes sense if you're planning to do 
things like breakout groups, not just presentations.

> Was it recorded in any successful way?  I'd still like to listen.

Sorry, as far as I know, there was no recording. Phil, please let me know if 
I'm wrong about that.

Best wishes,
Thomas

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Re: [Hampshire] How to connect Android phone to Debian system

2023-05-01 Thread Thomas Kluyver via Hampshire
On Mon, 1 May 2023, at 13:02, Peter Alefounder via Hampshire wrote:
> It may be that I will have to take the phone and the files on a memory
> stick to a public library and use a Windows computer there.

If the goal is to get some files on or off the phone, there are also options to 
transfer files over the air rather than through a USB connection. I've tried 
Warpinator:

https://flathub.org/en-GB/apps/org.x.Warpinator
https://play.google.com/store/apps/details?id=slowscript.warpinator

And Warp + Wormhole:

GUI: https://flathub.org/en-GB/apps/app.drey.Warp
CLI: https://magic-wormhole.readthedocs.io/en/latest/welcome.html
Android: https://play.google.com/store/apps/details?id=eu.heili.wormhole

Warpinator needs to be running on both ends and discover itself before you can 
send files. Wormhole lets you share and then launch the receiver, but the 
Android app only seems to be able to send one file at a time.

If the files are small enough and you already have an account, the low effort 
way is probably to put them in Google Drive, Dropbox or OneDrive, and download 
them at the other end.

XKCD hit the nail on the head, as always: https://xkcd.com/949/

Best wishes,
Thomas

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