December 2016 - Pharo-users

Launching PhyloclassTalk in different GNU/Linux distros
by HernÃ¡n Morales Durand Dec. 2, 2016

Dec. 2, 2016

If you are using Linux, can you download and try to launch PhyloclassTalk? The software website is : http://phyloclasstalk.github.io/ You can find the installation procedure here: http://phyloclasstalk.github.io/doc/PhyloclassTalk-1.0.pdf If you are able to launch the software, you may paste the output of the following command: $ lsb_release -d or $ hostnamectl Thank you very much, HernÃ¡n

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Pharo + VirtualGPU on Parallella
by Sebastian Heidbrink Dec. 2, 2016

Dec. 2, 2016

Hi folks, I dabbled around with the OpenSmalltalkVM and PharoV50 on the Parallella (https://www.parallella.org/) Although most OpenCL samples do currently not work, because of some issues with the esdk on the Parallella, I can at least report that this combination works. It might take some time until I figured the OpenCL errors out. The building of the kernels throws errors due to include path errors. The screenshot of my Pharo image on the Parallella through a ssh X forwarded session. Cheers! Sebastian

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BioSmalltalk win ...almost
by Serge Stinckwich Dec. 1, 2016

Dec. 1, 2016

Hi Hernan, apparently BioSmalltalk is the faster in the field of Bio* platforms (BioPerl, BioPython, BioJava, ...) and the more trendy: http://www.ijcseonline.org/spl_pub_paper/PID%2023.pdf I would love to believe in that ;-) But if you read carefully the paper, you will found that authors has made a dramatic mistake ... They think that Pharo was the name of BioSmalltalk ... and then they compare with Google Trends, Pharo against BioPerl, BioPython, ... Anyways the statement that BioSmalltalk is the faster is maybe true :-) Hernan did you know this paper ? Regards, -- Serge Stinckwich UCBN & UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://www.doesnotunderstand.org/

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Pharo Newsletter November16 ready
by Marcus Denker Dec. 1, 2016

Dec. 1, 2016

â¦ we are really getting better to do a monthly newsletter. Target are people outside of the community (wo want to follow a bit but not read e.g. these lists). Just one day late. If you want to get the newsletter, subscribe here: http://eepurl.com/byhgL9 <http://eepurl.com/byhgL9> The newsletter goes out at 16h local time (in 4 hours) Marcus

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Use of -> in Pharo Code
by Bruce Prior Dec. 1, 2016

Dec. 1, 2016

Thanks for the explanation, Sebastian. It led me to look into associations and dictionaries, which led me to page 190 in /Pharo By Example/. The character, ->, is there used in examples. It is described as a message (I assume a binary message). I found -> also in the index under Object. Thanks again. Bruce

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Use of -> in Pharo Code
by Bruce Prior Dec. 1, 2016

Dec. 1, 2016

I have been away from smalltalk coding for a while. On returning to the fold, I often see the use of a right arrow in code. Is this something new? Today in a Teapot app example, I saw, Teapot on GET: '/welcome' -> 'Hello World!'; start. What is the arrow for?

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UDBCSQLite and the location of the sqlite3 binary
by Offray Vladimir Luna CÃ¡rdenas Dec. 1, 2016

Dec. 1, 2016

Hi, From time to time, we use UDBCSQLite for our workshops and interactive documentation examples and is a pretty good project for bridging the Smalltalk world and the relational database world. A common glitch is locating the binary of sqlite3 for 32 bits and putting it in a place that is available for the VM. I just make this small hack: === UDBCSQLite3Library>>#library Smalltalk os isMacOS ifTrue: [ ^ #sqlite3 ]. Smalltalk os isUnix ifTrue: [ ^ '/usr/lib32/libsqlite3.so']. ^'sqlite3' === and now is working pretty well on my machine. Of course, this only works on Arch 64 bits and its derivates and could change in other Gnu/Linux variants. So, I'm wondering for a better way to make the path to the sqlite binary not hard coded into UDBCSQLite3 and creating some #library: setter that lets the user to setup the sqlite3 location if the file on UDBCSQLite3Library>>#library is non-existent or wrong. I'm sending this to the list, because AFAIK there is no ticketing on STHub to discuss code issues. Cheers, Offray

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