- Pharo-users - lists.pharo.org

Re: [Pharo-users] Slides from the Pharo Status talk at FOSDEM 2015

by Marcus Denker

> On 03 Feb 2015, at 13:59, kilon alios <kilon.alios(a)gmail.com> wrote: > > I do agree, that nomads do not build cathedrals but there is the flip side of the coin, why one would want to be a nomad and the great benefits coming with being a nomad > > Guido the creator of python explains it from the side of the Python Standard library but I think it applies fine for Pharo too > > http://youtu.be/EBRMq2Ioxsc?t=49m4s <http://youtu.be/EBRMq2Ioxsc?t=49m4s> > > he makes the point at 49th minute for a couple of minutes. Especially if the subject of your coding is quite unconventional putting it inside a standard distribution can be a huge wast of time that not only can offer limited benefits but even decrease the quality of the code substantially. The idea is not that everything should be addedâ¦ the idea is that we do experiments (or commercial projects), and *after* we re-assess if the changes that where needed to make those real make sense to be feed back into the main system. Often it is just parts, and in all âresearchâ cases a real engineering pass is needed: research prototypes are just good enough to publish a paperâ¦ every minute spend doing more means publishing less, which is hurting your research career. (Research is a very nomadic activityâ¦) > Thanks for the slides. I am using Pharo for a couple of years and I am amazed how far it has come , keep up the great work. > Thanks! Marcus

Feb. 3, 2015

Re: [Pharo-users] Slides from the Pharo Status talk at FOSDEM 2015

by kilon alios

I do agree, that nomads do not build cathedrals but there is the flip side of the coin, why one would want to be a nomad and the great benefits coming with being a nomad Guido the creator of python explains it from the side of the Python Standard library but I think it applies fine for Pharo too http://youtu.be/EBRMq2Ioxsc?t=49m4s he makes the point at 49th minute for a couple of minutes. Especially if the subject of your coding is quite unconventional putting it inside a standard distribution can be a huge wast of time that not only can offer limited benefits but even decrease the quality of the code substantially. Afterall the most beautiful things in life are not big at all ;) But yes I agree that being teamplayer is extremely important too. The balance is somewhere in between and I am a big supporter of what you trying to do with making pharo more modular. Thanks for the slides. I am using Pharo for a couple of years and I am amazed how far it has come , keep up the great work. On Tue, Feb 3, 2015 at 12:10 PM, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > > On 02 Feb 2015, at 21:19, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > > > Hi, > > > > Here are the slides from my talk from yesterday: > > > > http://www.slideshare.net/MarcusDenker/2015-fosdempharo > > > > The part in between Pharo3 and Pharo4 tries a bit to explain the > philosophyâ¦ I did a longer > talk at ESUG last year about that: > > Nomads do not build Cathedrals > http://www.slideshare.net/MarcusDenker/2014-esugcathedral > > The video of that is online: > > Video Part 1: https://www.youtube.com/watch?v=Vcoy5gwUvOA > Video Part 2: https://www.youtube.com/watch?v=5LrH9r4FNzY > > In the spirit of the talk, I should do a pass over it and make a version 2â¦ > > e.g. one book that was very influential to my thinking was > Finite and Infinite Games by James P. Carse: > > http://kk.org/cooltools/archives/000434 > > To me a software system should always be thought as an âinfinite gameââ¦ > > Marcus >

Feb. 3, 2015

Re: [Pharo-users] spotter preview

by Marcus Denker

> On 02 Feb 2015, at 22:02, Tudor Girba <tudor(a)tudorgirba.com> wrote: > > Hi, > > The Glamorous Team is happy to present a new feature in Spotter: preview (you toggle it with Cmd+p). We think this boosts the usefulness of the Spotter interface significantly. > > <spotter-method-preview.png> > > For more details, please take a look at: > http://www.humane-assessment.com/blog/boosting-gtspotter-with-preview <http://www.humane-assessment.com/blog/boosting-gtspotter-with-preview> > > This is available in the Moose image, and it will soon be integrated in the Pharo one. > This is now in Pharo4 update 473 (the latest one from today). Marcus

Feb. 3, 2015

Re: [Pharo-users] Slides from the Pharo Status talk at FOSDEM 2015

by Marcus Denker

> On 02 Feb 2015, at 21:19, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > Hi, > > Here are the slides from my talk from yesterday: > > http://www.slideshare.net/MarcusDenker/2015-fosdempharo > The part in between Pharo3 and Pharo4 tries a bit to explain the philosophyâ¦ I did a longer talk at ESUG last year about that: Nomads do not build Cathedrals http://www.slideshare.net/MarcusDenker/2014-esugcathedral The video of that is online: Video Part 1: https://www.youtube.com/watch?v=Vcoy5gwUvOA Video Part 2: https://www.youtube.com/watch?v=5LrH9r4FNzY In the spirit of the talk, I should do a pass over it and make a version 2â¦ e.g. one book that was very influential to my thinking was Finite and Infinite Games by James P. Carse: http://kk.org/cooltools/archives/000434 To me a software system should always be thought as an âinfinite gameââ¦ Marcus

Feb. 3, 2015

Re: [Pharo-users] [Pharo-dev] Slides from the Pharo Status talk at FOSDEM 2015

by Marcus Denker

> On 02 Feb 2015, at 21:26, Eliot Miranda <eliot.miranda(a)gmail.com> wrote: > > > > On Mon, Feb 2, 2015 at 12:19 PM, Marcus Denker <marcus.denker(a)inria.fr <mailto:marcus.denker@inria.fr>> wrote: > Hi, > > Here are the slides from my talk from yesterday: > > http://www.slideshare.net/MarcusDenker/2015-fosdempharo <http://www.slideshare.net/MarcusDenker/2015-fosdempharo> > > very cool, Marcus! will there be audio of the Q&A? Do you have any recollections of the Q&A? > It was recordedâ¦ the Q&A after was not that many questionsâ¦ I donât actually remember. I think the impact is more the slides+video, not the presentation itself there. Marcus

Feb. 3, 2015

Re: [Pharo-users] spotter preview

by Tudor Girba

Hi, The keybindings are: - trigger Spotter with Shift+Enter. - toggle preview with Cmd+P (or Alt+P on Windows/Linux) Doru On Mon, Feb 2, 2015 at 10:06 PM, Ignacio Sniechowski <0800nacho(a)gmail.com> wrote: > Really cool. > What's the key combination for Windows? > Thanks Doru > > > *Lic. Ignacio Sniechowski, MBA* > *Prosavic SRL* > > *Tel: (011) 4542-6714* > > > > > > > > > > > > > > > > > > > > > > On Mon, Feb 2, 2015 at 6:02 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote: > >> Hi, >> >> The Glamorous Team is happy to present a new feature in Spotter: preview >> (you toggle it with Cmd+p). We think this boosts the usefulness of the >> Spotter interface significantly. >> >> [image: Inline image 1] >> >> For more details, please take a look at: >> http://www.humane-assessment.com/blog/boosting-gtspotter-with-preview >> >> This is available in the Moose image, and it will soon be integrated in >> the Pharo one. >> >> Please let us know what you think. >> >> Cheers, >> Doru >> >> >> -- >> www.tudorgirba.com >> >> "Every thing has its own flow" >> > > -- www.tudorgirba.com "Every thing has its own flow"

Feb. 3, 2015

session two: serving files with FileSystem (is: smalltalk workshops (building a webserver) after code-in)

by Martin BÃ¤hr

Excerpts from Martin BÃ¤hr's message of 2015-01-29 05:52:52 +0100: > you can read more about the workshop and find the screencast here: > http://societyserver.org/mbaehr/training/Using-the-FileSystem-class-in-Phar… part two is here: http://societyserver.org/mbaehr/training/Serving-files-through-FileSystem-i… > i am open to feedback and criticism of any kind, from pointing out redundant > ()s or ways to improve the code to tips for debugging and testing. can't stress this enough :-) i am looking forward to feedback. greetings, martin. -- eKita - the online platform for your entire academic life -- chief engineer eKita.co pike programmer pike.lysator.liu.se caudium.net societyserver.org secretary beijinglug.org mentor fossasia.org foresight developer foresightlinux.org realss.com unix sysadmin Martin BÃ¤hr working in china http://societyserver.org/mbaehr/

Feb. 3, 2015

Re: [Pharo-users] Error loading own project from GitHub with Metacello

by Manfred KrÃ¶hnert

Hello Dale, On Mon, Feb 2, 2015 at 10:52 PM, Dale Henrichs < dale.henrichs(a)gemtalksystems.com> wrote: > Manfred, > > When you use github, you don't need nor do you want to use a > ConfigurationOf. git manages the versions for you so you don't need to > define versions in the ConfigurationOf. If you want versions for a git > repository, use tags. > > You still need to specify load order and project dependencies. For an > example you can look at[1] or download the baseline: > > Metacello new > baseline: 'External'; > repository: 'github://dalehenrich/external:master/repository'; > get. > > No need to specify a repository in the baselineOf, since the repository is > derived from the location of the Baseline itself. > > Dale > thanks for the fast reply. I'll give it a try as soon as possible and report back if I should encounter other issues. Best, Manfred > > [1] > https://github.com/dalehenrich/external/blob/master/repository/BaselineOfEx… > > On 02/02/2015 01:21 PM, Manfred KrÃ¶hnert wrote: > > Hi, > > sorry for the unfinished email upfront. I accidentially hit the send > button before I was finished... > So here we go again: > > Some time ago I started a small Pharo based project but didn't want to > announce it before I knew how to load it conveniently. > > For versioning I started using GitFileTree and pushed the code to GitHub > together with a ConfigurationOf created with Versionner. > > Only after a more recent email from Kilon on this list I figured out > that the project should be easily loadable with the following commands: > > Metacello new > configuration:'HttpExplorer'; > repository:'github://mkroehnert/httpexplorer:master'; > get. > > Metacello new > configuration:'HttpExplorer'; > repository:'github://mkroehnert/httpexplorer:master'; > load. > > Executing the first command succeeds and the ConfigurationOfHttpExplorer > appears in the Browser. > But when I try to execute the load command I get the following error > (unfortunately I don't yet know how to copy a complete stacktrace): > > Error: Instances of UndefinedObject are not indexable > > This is a result from executing ZnClient>>getConnectionAndExecute where > 'request url' returns the following address: > > http://:80/git@github.com:mkroehnert/httpexplorer.git/?C=M;O%3DD > > I guess that the error is probably in the ConfigurationOf but I am a bit > lost as to where I should dig further. > It would be great if anyone could point me in the right direction of where > to look or tell what went wrong. > > Thanks in advance, > Manfred > > >

Feb. 2, 2015

Re: [Pharo-users] Error loading own project from GitHub with Metacello

by Dale Henrichs

Manfred, When you use github, you don't need nor do you want to use a ConfigurationOf. git manages the versions for you so you don't need to define versions in the ConfigurationOf. If you want versions for a git repository, use tags. You still need to specify load order and project dependencies. For an example you can look at[1] or download the baseline: Metacello new baseline: 'External'; repository: 'github://dalehenrich/external:master/repository'; get. No need to specify a repository in the baselineOf, since the repository is derived from the location of the Baseline itself. Dale [1] https://github.com/dalehenrich/external/blob/master/repository/BaselineOfEx… On 02/02/2015 01:21 PM, Manfred KrÃ¶hnert wrote: > Hi, > > sorry for the unfinished email upfront. I accidentially hit the send > button before I was finished... > So here we go again: > > Some time ago I started a small Pharo based project but didn't want to > announce it before I knew how to load it conveniently. > > For versioning I started using GitFileTree and pushed the code to > GitHub together with a ConfigurationOf created with Versionner. > > Only after a more recent email from Kilon on this list I figured out > that the project should be easily loadable with the following commands: > > Metacello new > configuration:'HttpExplorer'; > repository:'github://mkroehnert/httpexplorer:master'; > get. > > Metacello new > configuration:'HttpExplorer'; > repository:'github://mkroehnert/httpexplorer:master'; > load. > > Executing the first command succeeds and the > ConfigurationOfHttpExplorer appears in the Browser. > But when I try to execute the load command I get the following error > (unfortunately I don't yet know how to copy a complete stacktrace): > > Error: Instances of UndefinedObject are not indexable > > This is a result from executing ZnClient>>getConnectionAndExecute > where 'request url' returns the following address: > > http://:80/git@github.com:mkroehnert/httpexplorer.git/?C=M;O%3DD > > I guess that the error is probably in the ConfigurationOf but I am a > bit lost as to where I should dig further. > It would be great if anyone could point me in the right direction of > where to look or tell what went wrong. > > Thanks in advance, > Manfred

Feb. 2, 2015

Re: [Pharo-users] High precision arithmetic

by Werner Kassens

Hi Stephane, <g> it _is_ in scitalk, at the moment only in the #development version, but i'd guess, that will change in a while. Hi Pierre, the problem - as Stephane pointed out - is that ScaledDecimal essentially is a Fraction, which depending on which function you use can be transformed to Float, iow you _can_ loose precision with it, i'd be careful and look at the implementations of the functions you use in Fraction; as far as i can see, ScaledDecimals reason of existence is not really to make arbitrary precision calculations possible. otoh ArbitraryPrecisionFloat is a package, that is not really fast, but as precise as you want it to be (with the implemented functions). werner On 02/02/2015 09:43 PM, stepharo wrote: > we should move it to scitalk ;) > Le 2/2/15 17:51, Werner Kassens a Ã©crit : >> Hi Pierre, >> you will find an ArbitraryPrecisionFloat package at sqeaksource that >> works eg in pharo3 & 4: >> http://www.squeaksource.com/ArbitraryPrecisionFl.html >> werner >> >> > > >

Feb. 2, 2015