October 2014 - Pharo-users - lists.pharo.org

Re: [Pharo-users] NeoCSVReader skipEmptyLines?

by Sven Van Caekenberghe

Esteban, On 04 Oct 2014, at 02:42, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: > Sven, > > Is it possible to skip blank/empty lines in NeoCSVReader? > > So if a line is empty or contains ",,,,,,,," it would be skipped from > the iteration. > > Does it already provider such feature? (I couldn't find any setting > related with this). > > Esteban A. Maringolo Could you elaborate a bit on the use case ? My first reaction would be that you have to deal with these yourself afterwards. What would be the definition of an empty record ? What about empty quoted fields ? Sven PS: I got your other contribution, I think it is OK to add, thanks.

Oct. 4, 2014

Re: [Pharo-users] How to create a package via code correctly ?

by Esteban Lorenzano

(RPackage named: 'ABC') register. or RPackageOrganizer default registerPackage: (RPackage named: 'ABCâ). or RPackageOrganizer default registerPackageNamed: âABCâ. the 3 ways work (just tested). If you are not succeeding probably there is another, previous problem (like de-sync caused by some failed operation made before)â¦ cheers, Esteban > On 04 Oct 2014, at 08:30, Ben Coman <btc(a)openInWorld.com> wrote: > > itlists(a)schrievkrom.de wrote: >> How can I create a package correctly via code ? >> I tried stuff like >> PackageOrganizer default registerPackageNamed: 'Keks4' >> SystemOrganization addCategory: 'Keks4' >> but the package does not appear in the browser. >> Marten > > I don't have a direct answer for you, since I don't know - but I can tell you how to discover the answer yourself (or at least how I would go about it myself) > > 1. Right-click in the package pane, and then bring up the Halos[1] on the menu-item-of-interest e.g. "Add package..." > > 2. From the Debug (spanner) halo menu choose "Inspect morph". Scroll down until you see something that looks like a method being called. Go to that method and put a "self halt" at the top. > > 3. Invoke the menu-item-of-interest, then in the debugger step through what it does, and copy that for your own purpose. > > Please report back if you succeed with this, or otherwise feel free to ask for more assistance. I just believe it helps you more to teach you how to fish :) rather than just give you one someone else caught. > > cheers -ben > > [1] http://web.cecs.pdx.edu/~black/OOP/Tutorial/Morphic%20Worksheet.html >

Oct. 4, 2014

Re: [Pharo-users] How to create a package via code correctly ?

by Ben Coman

itlists(a)schrievkrom.de wrote: > How can I create a package correctly via code ? > > I tried stuff like > > PackageOrganizer default registerPackageNamed: 'Keks4' > > SystemOrganization addCategory: 'Keks4' > > but the package does not appear in the browser. > > > Marten > > I don't have a direct answer for you, since I don't know - but I can tell you how to discover the answer yourself (or at least how I would go about it myself) 1. Right-click in the package pane, and then bring up the Halos[1] on the menu-item-of-interest e.g. "Add package..." 2. From the Debug (spanner) halo menu choose "Inspect morph". Scroll down until you see something that looks like a method being called. Go to that method and put a "self halt" at the top. 3. Invoke the menu-item-of-interest, then in the debugger step through what it does, and copy that for your own purpose. Please report back if you succeed with this, or otherwise feel free to ask for more assistance. I just believe it helps you more to teach you how to fish :) rather than just give you one someone else caught. cheers -ben [1] http://web.cecs.pdx.edu/~black/OOP/Tutorial/Morphic%20Worksheet.html

Oct. 4, 2014

Re: [Pharo-users] Glorp + NBSQLite3

by Sanjay-M

There is a discussion on developing client/server in Dolphin Smalltalk's online documentation http://www.object-arts.com/downloads/docs/index.html -> Appendix B -> Application Patterns -> New Application #consequences. I was wondering if this approach could be adopted in developing a Client/Server application with a separate server component accessing the SQLite database (on a separate machine). If a template / model can be developed i am sure this can be very useful in creating larger multi-user applications even at the cost of some duplication / redundant effort. Regards Sanjay ----- --- Regards, Sanjay -- View this message in context: http://forum.world.st/Glorp-NBSQLite3-tp4779996p4782468.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Oct. 4, 2014

NeoCSVReader skipEmptyLines?

by Esteban A. Maringolo

Sven, Is it possible to skip blank/empty lines in NeoCSVReader? So if a line is empty or contains ",,,,,,,," it would be skipped from the iteration. Does it already provider such feature? (I couldn't find any setting related with this). Esteban A. Maringolo

Oct. 4, 2014

Re: [Pharo-users] Spur images

by Esteban Lorenzano

as Stef says, we are close, but not there yet. Iâm working on it and I hope to have something really soon. Esteban > On 03 Oct 2014, at 22:13, stepharo <stepharo(a)free.fr> wrote: > > Pharo has a new classbuilder with first class instance variables so the bootstrap took longer and > doing so esteban and guille found bugs in Spur. So regularly but hidden from the fame, esteban goes over it. > and we hope soon to have some images to beta testers. >> My apologies if this is already spelled out somewhere and I simply can't >> find it, but are there any Spur images for Pharo yet? I can only find >> Squeak ones. It's not a big deal either way; I was just playing with an >> algorithm that, after very heavy optimization, I was able to get down to >> about 278ms per pass (from ~700ms initially from a naive >> implementation). For contrast, the equivalent Python runs in ~80ms. >> Looking at MessageTally, it seems at least half of that 278ms is spent >> noodling around in WideStrings and other small things that the Spur >> object format ought to help with, so it'd be interesting to see how much >> of a speed boost that gives without any further work. > tell us more about your algo because we want to know. > > >

Oct. 3, 2014

Re: [Pharo-users] Pharo Glorp 1.7 <-> VisualWorks

by stepharo

> Many of them are here, AFAIR they were Lorenzano, Polito, Peck. Paid by ESUG because we already wre convinced that databse support is important. > > Even with its outdated condition, ORM hasn't changed much in the past > years, so current GLORP fits most of the needs, it's proven, it's > tested and it's reliable. > > >> Where is the best place to ask about Glorp by the way? > I wonder the same. > > The official discussion group is > https://groups.google.com/forum/#!forum/glorp-group > But it is not very active. > > So IMHO, for Pharo use this is the best place, and for VisualWorks its > own mailing list. > > > Regards! > > > > Esteban. > >

Oct. 3, 2014

Re: [Pharo-users] invoking python from pharo

by kilon alios

Everything you done is correct. all this information you see in your terminal is debugging of error reporting. Python errors are send back to Pharo and trigger pharo debugger. So yes everything you see is to be expected. I use it to check that everything goes as planned with python execution. if you want to disable it just do the following Ephestos sendMessage: 'alogging = False'. It will stop typing / logging all this info and instead print what you want to print. Your can turn it back to true of course pyAtlas runs the python side as standalone so there is no need to use Blender , pyAtlas works both with py 2.7 and python 3 thanks for the information on how to download the py on the go. I will definetly integrate it. On Fri, Oct 3, 2014 at 10:40 PM, HernÃ¡n Morales Durand < hernan.morales(a)gmail.com> wrote: > I would use only the Python bridge but not the Blender features (Cube, > etc). Will be the Python bridge and parser contained in its own package? > > I have started from MinGW and evaluated > > Ephestos sendMessage: 'print("hello world")'. > Ephestos sendMessage: 'x = 3'. > Ephestos getValue: 'x'. > > $ python pyAtlas.py > creating thread > calling create_socket_connection > hello world > ('pherror : ', ['', 'no error\n']) > I have sent err : --->no error > <---- and removed it from the list of errors > ('pherror : ', ['', 'no error\n']) > I have sent err : --->no error > <---- and removed it from the list of errors > ('eval with pherror: ', ['', 'RetValue:3']) > ('pherror : ', ['', 'RetValue:3']) > I have sent err : --->RetValue:3 <---- and removed it from the list of > errors > > Is this expected? > > I don't know if there are other reasons but you could download the raw .py > file from > https://raw.githubusercontent.com/kilon/pyAtlas/master/pyatlas.py using > Metacello Configuration and start the script using OSProcess or > ProcessWrapper. This is how I do it for BioSmalltalk: > > >>... > spec for: #'common' do: [ > spec blessing: #'baseline'. > spec preLoadDoIt: #preLoad. > > >>preLoad > | urlIndex | > urlIndex := 1. > [ self downloadFiles: urlIndex ] > on: ZdcPluginMissing > do: [ : ex | > urlIndex := urlIndex + 1. > ex retry ]. > > >>downloadFiles: urlIndex > | url response | > url := (self platformFilesUrl at: urlIndex) asZnUrl. > fileRef := FileSystem disk workingDirectory / url pathSegments > last. > (response := ZnEasy get: url) isSuccess > ifTrue: [ fileRef writeStreamDo: [ : stream | stream nextPutAll: > response contents ] ] > ifFalse: [ self error: 'Cannot download files' ] > > >>platformFilesUrl > " Answer a <Collection> of download URLs for the current platform " > > ^ Smalltalk os isWin32 > ifTrue: [ #('http://...zip' > 'http://...zip') ] > ifFalse: [ #('http://....tar.gz' > 'http://....tar.gz') ]. > > Cheers, > > HernÃ¡n > > > > 2014-09-25 14:11 GMT-03:00 kilon alios <kilon.alios(a)gmail.com>: > > Hi there, I promised to do this a long time ago, but since you asked it I >> done it now. >> >> So as Ben said I am the author of Ephestos, a communication bridge >> between Blender and Pharo . >> >> To go directly to the how to . Ephestos is basically a socket bridge that >> send via sockets strings from pharo to python that then python executes as >> python commands. >> >> Ephestos is made so it works inside blender but I promised Atals a spin >> off project that allows the same socket bridge to be used as a standalone. >> To use do the following. >> >> 1) Get Ephestos , you can find it and install it with the configuration >> browser in your image in Pharo 3 and Pharo 4. Make sure you have a recent >> release though because I added it recently. >> >> 2) Get pyAtlas , this is the python side , you can get it from here --> >> https://github.com/kilon/pyAtlas >> >> 3) in your command line cd to the pyAtlas directory and execute : >> python3 pyAtlas.py >> >> 4) in Pharo you can now try any python code you want >> >> for example >> >> Ephestos sendMessage: 'print("hello world")'. >> Ephestos sendMessage: 'x = 3'. >> x := Ephestos getValue: 'x'. >> x inspect. >> >> Ephestos sendMessage: string, basically sends the python command to be >> executes while getValue: sends the command and returns a value as a string. >> >> you can use string 'exit' to close the socket bridge but this part is >> buggy as it seems to keep the binding of the sokcet active and I have to >> wait to clean it up in macos to reopen the bridge. >> >> You can also use pharo syntax and python errors will trigger the pharo >> debugger with a title the python error itself. >> >> You can find more information about Ephestos in my gitbook that can be >> read here >> >> https://www.gitbook.io/book/kilon/ephestos >> >> Also I forgot to add that sendMessage can send multiline strings , so its >> possible to send python class definitions and other stuff, you type the >> string exactly as you would type python code respecting whitespaces. If you >> want to execute loads of lines of python code then it would be better to >> put your code in a python module and do >> >> Ephestos sendMessage: 'import mymodule' >> >> assuming your module is called 'mymodule' , python import basically are >> executions of code. >> >> If you have any questions just ask. >> >> Bare in mind this is a socket bridge so its not ideal for sending >> thousands of messages per second and you may run into the occasional bug or >> two which I will fix if you report it. Nonetheless it should allow you to >> execute any kind of code and not just call python functions or python >> methods. >> >> >> >> On Thu, Sep 25, 2014 at 7:40 PM, Ben Coman <btc(a)openinworld.com> wrote: >> >>> Pablo R. Digonzelli wrote: >>> >>> Hi all , I need to invoke python rutines from Pharo. I need some >>> orientation about the best way to do it. >>> TIA >>> >>> ------------------------------ >>> *Ing. Pablo Digonzelli* >>> Software Solutions >>> IP-Solutiones SRL >>> Metrotec SRL >>> 25 de Mayo 521 >>> Email: pdigonzelli(a)softsargentina.com >>> pdigonzelli(a)gmail.com >>> Cel: 5493815982714 >>> >>> >>> Search the [pharo-dev] list for Ephestos by kilon. >>> cheers -ben >>> >> >> >

Oct. 3, 2014

Re: [Pharo-users] Pharo Glorp 1.7 <-> VisualWorks

by stepharo

>> Unfortunately, we don't have the manpower to maintain such >> a beast, are there many people using glorp in production? With PostgresV2? > I am making a living out of two projects using GLORP+PostgresV2 since > almost a year. So me, and my company, depends on it. > > I'd join an community driven "ORM Task Force" for Pharo. IMHO merging > VW's and Pharo's version won't be an easy quest. > While debugging GLORP I learnt a few things about its internals, and I > think other users share the same learning process. > So I am willing to spend some time on this. :) At annecy 2013 I asked nail ross to organize a glorp tutorial and I gathered some text. what would be good is to have some chapters on Glorp (to complement the reddit.st chapter of sven. Getting a nice doc is a way to get more people and more interest. I can look for the files I have around. I cannot work on something I never used.

Oct. 3, 2014

Re: [Pharo-users] Glorp + NBSQLite3

by stepharo

On 24/9/14 18:17, Pierce Ng wrote: > Hello, > > I am pleased to report that I have gotten Glorp working with NBSQLite3 > enough to run Sven's Reddit.st. Cool what is NBSQLite3 (a nativeboost version)? Nice. Would be nice once you API stabilize that we get a chapter or on NBSQLite3 :) > > As mentioned in my blog post, there is more work to be done to get > Glorp fully integrated with NBSQLite3, but preliminary results are > encouraging. > > http://www.samadhiweb.com/blog/2014.09.24.glorp.nbsqlite3.html > > Pierce > > >

Oct. 3, 2014