- Pharo-users - lists.pharo.org

XAdES (BES) and XML DSIG signing and verification

by Petr Fischer

Hello Smalltalkers! Has anyone tried to solve a subject in Pharo/Smalltalk? Thanks! pf

Aug. 25, 2018

Re: [Pharo-users] Dynabook and authentic learning pedagogy

by Hilaire

Hi Hannes, Le 24/08/2018 Ã 06:59, H. Hirzel a Ã©critÂ : > Hello Hilaire > > Thank you for the short summary what authentic learning is and the > conclusions what this means for a Dynabook implementation. > > You conclude that > > Dynabook's tools should support using authentic documents. > > I think that in practice this means that DOCX and ODT documents should > be supported in some way. Authentic documents are situation or media from the "real world" used in teaching situation. It can be an analog or digital document: a poster, a TV advertisement, a TV show, or it can be a real world problem. Often these ones need to be scaffolded by the teacher to make it accessible to the students. Speaking about docs/dot support, could Dynabook support it? It depends on what it will be. 1. Is Dyanbook just one software among many in a given os host, to support creative use of computerized simulation? 2. Or is it the whole operating system for the host, disconnected from today use cases and software (ie libreoffice). For what benefit? 3. Or a mix of both? Hilaire -- Dr. Geo http://drgeo.eu

Aug. 24, 2018

Roassal installation in Pharo 6.1 through the catalog?

by H. Hirzel

Hello Installing Roassal in 6.1 through the catalog gives the message that it has not been tested for installation in 6.0. See screen shot. Is this the regular way to go for or is there a better installation script? Regards Hannes

Aug. 24, 2018

Re: [Pharo-users] Pharo 6 snap package

by Alistair Grant

Hi Hannes, On Fri, 24 Aug 2018 at 06:36, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > > Hello Alistair > > Thank you for the detailed answer. I understand that at the moment > going for a Pharo snap package does not seem to be useful. > > In particular as a Pharo installation may reside in a directory with > everything included. > So different Pharo installations may reside in different directories. Yep. Especially if using the in-development version of Pharo (currently 7), I find it useful to pair images and VMs. > I think where snap still might come is for solutions which require > more than a particular Pharo installation. > > For example I could think of combining a particular Pharo version with > a particular Jupyter notebook installation into a snap which could > lead to a web based 'Dynabook' solution. That was one of the things that attracted me to snaps originally, I use sqlite in my daily environment, so included it in the Pharo snap. > I am also looking forward to Guille's answer. +1. Cheers, Alistair > Regards > Hannes > > On 8/23/18, Alistair Grant <akgrant0710(a)gmail.com> wrote: > > Hi Hannes, > > > > On Wed, 22 Aug 2018 at 17:20, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > >> > >> Hello > >> > >> Are there plans to do a Pharo 6.1 snap package in the upcoming > >> months? (Ubuntu 18.04.1) > > > > I haven't been thinking about it really, because: > > > > - The big attraction for me was the ability to easily run 32 bit Pharo > > on a 64 bit OS without installing all the dependencies. But now that > > 64 bit Pharo is stable that driver has largely gone. > > - The sandboxing is quite limiting for a development environment, so > > if you want to run commands on the localhost you end up doing > > something like ssh'ing the command to localhost. > > - The snap runtime environment is still quite immature - I've had to > > deal with bugs in snapd, the gtk desktop interface, loading 32 bit > > executables, etc. > > - The snapcraft build environment is still evolving, so I have to keep > > up with the changes. > > - I was originally compiling the 32 and 64 bit VMs as part of the > > build process, but that is problematic as the 32 and 64 bit libraries > > tend to interfere with each other making the build process unstable. > > - You can't run multiple versions of a snap on one system, e.g. we > > can't have Pharo 6 and Pharo 7 installed simultaneously under the one > > snap name (pharo). I tried to register Pharo7 so pharo could be the > > GA version (6), but never got a response. > > > > I was listening to an Ubuntu podcast just this week where one of the > > hosts tried installing 4 packages via snaps and ended up going back to > > debian packages for 3 of the packages due to problems, so it obviously > > still isn't mature. > > > > I realise that every software package has its own issues, I'm sure > > someone from the snap community could find parallel issues with Pharo, > > but it wasn't where I wanted to be spending all my time. > > > > If someone wants to take it over, I'm more than happy to pass it on > > (although it isn't building at the moment due to changes in > > snapcraft). > > > > If there is enough interest I'll try and update it to run Pharo 6.1. > > > > If Guille is actively maintaining his package, maybe we should move to > > that (I haven't looked at it). > > > > Cheers, > > Alistair

Aug. 24, 2018

Re: [Pharo-users] How do I get ZeroMQ working?

by H. Hirzel

user25@Latitude2:~$ find . -name libzmq* ./anaconda3/lib/pkgconfig/libzmq.pc ./anaconda3/lib/libzmq.so.5 ./anaconda3/lib/python3.6/site-packages/zmq/backend/cython/libzmq.pxd ./anaconda3/lib/libzmq.so ./anaconda3/lib/libzmq.so.5.1.5 ./anaconda3/lib/libzmq.la ./anaconda3/lib/libzmq.a ./anaconda3/pkgs/zeromq-4.2.5-h439df22_0/lib/pkgconfig/libzmq.pc ./anaconda3/pkgs/zeromq-4.2.5-h439df22_0/lib/libzmq.so.5 ./anaconda3/pkgs/zeromq-4.2.5-h439df22_0/lib/libzmq.so ./anaconda3/pkgs/zeromq-4.2.5-h439df22_0/lib/libzmq.so.5.1.5 ./anaconda3/pkgs/zeromq-4.2.5-h439df22_0/lib/libzmq.la ./anaconda3/pkgs/zeromq-4.2.5-h439df22_0/lib/libzmq.a ./anaconda3/pkgs/pyzmq-17.0.0-py36h14c3975_0/lib/python3.6/site-packages/zmq/backend/cython/libzmq.pxd user25@Latitude2:~$ On 8/24/18, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > Yes, I re-evaluated in the playground > > Metacello new > baseline: 'JupyterTalk'; > repository: 'github://jmari/JupyterTalk:master/repository'; > load:'all' > > Then save and quit. > I hope that this was sufficient. > > > jupyter notebook > > create new Pharo Smalltalk notebook > > --> the notebook was created. > > Evaluate an expression > > --> the attached error comes up. The library is still not found. It is > looking for version 3 wheras the anaconda installation has 5. > > > At the moment for me anaconda support (600MB download) is nice to have > but not necessary. > > The other ways of installing jupyter notebooks (pip3 and nteract, 50MB > download) need less space and start giving good results. > > I suggest to put this as an issue at > https://github.com/jmari/JupyterTalk for the moment. > > 'Retest anaconda support and fix if necessary' > > --Hannes > > On 8/24/18, JesÃºs MarÃ <jmariaguirre(a)gmail.com> wrote: >> it's done. >> please try again >> Thanks >> >> >> >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >> >> >

Aug. 24, 2018

Re: [Pharo-users] How do I get ZeroMQ working?

by H. Hirzel

Yes, I re-evaluated in the playground Metacello new baseline: 'JupyterTalk'; repository: 'github://jmari/JupyterTalk:master/repository'; load:'all' Then save and quit. I hope that this was sufficient. jupyter notebook create new Pharo Smalltalk notebook --> the notebook was created. Evaluate an expression --> the attached error comes up. The library is still not found. It is looking for version 3 wheras the anaconda installation has 5. At the moment for me anaconda support (600MB download) is nice to have but not necessary. The other ways of installing jupyter notebooks (pip3 and nteract, 50MB download) need less space and start giving good results. I suggest to put this as an issue at https://github.com/jmari/JupyterTalk for the moment. 'Retest anaconda support and fix if necessary' --Hannes On 8/24/18, JesÃºs MarÃ <jmariaguirre(a)gmail.com> wrote: > it's done. > please try again > Thanks > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >

Aug. 24, 2018

Re: [Pharo-users] Jupyter notebooks / Dynabook / JupyterTalk

by JesÃºs MarÃ

Last update works also on *nteract* In the other hand, I could not understand how Jupyter knows about Pharo kernel without the configuration file!!! Unbelievable! -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Aug. 24, 2018

Re: [Pharo-users] How do I get ZeroMQ working?

by JesÃºs MarÃ

it's done. please try again Thanks -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Aug. 24, 2018

Re: [Pharo-users] Jupyter notebooks / Dynabook / JupyterTalk

by H. Hirzel

Hello On 8/24/18, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > On 8/23/18, JesÃºs MarÃ <jmariaguirre(a)gmail.com> wrote: >> I'll take a look to *nteract*, seems that it uses the same protocol to >> communicate with kernels. > > Good, actually my goal is to have a simple installation in a new Linux > installation, > something like > > a) download nteract (https://nteract.io/desktop) a 50MB executable file > b) set up Pharo 6.1 with JupyterTalk > c) whatever else is necessary, hopefully not to much > I have now a working JupyterTalk installation, see the attached screen shot. What needs to be done is to come up with a reviewed, reproducible, easy to use installation process. The steps I used are a) a fresh new Ubuntu 18.04.1 64 bit bionic beaver installation then sudo apt-get update b) python --version Command 'python' not found, but can be installed with: python3 --version Python 3.6.5 b) Instead of anaconda I tried then pip3 approach sudo apt install python3-pip python3 -m pip install jupyter But jupyter notebook did not work. After sudo apt install jupyter-core sudo apt install jupyter-notebook This only downloaded 50MB instead of the 600MB for anaconda The command jupyter-notebook worked. Note the dash, i.e. it is a different command Then sudo apt-get install curl and the Pharo 6.1 64 bit installation curl get.pharo.org/64/61+vm | bash Then the Metacello installation taken from https://github.com/jmari/JupyterTalk. Creation of the kernel.json file as described in https://github.com/jmari/JupyterTalk was not necessary The content of ls /usr/share/jupyter/kernels/ is only python3 Interestingly, no entry for a Pharo kernel. The CLI command jupyter-notebook brings up a working Jupyter dashboard with the Pharo Smalltalk menu entry installed in the 'New' menu. --Hannes On 8/24/18, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > On 8/23/18, JesÃºs MarÃ <jmariaguirre(a)gmail.com> wrote: >> I'll take a look to *nteract*, seems that it uses the same protocol to >> communicate with kernels. > > Good, actually my goal is to have a simple installation in a new Linux > installation, > something like > > a) download nteract (https://nteract.io/desktop) a 50MB executable file > b) set up Pharo 6.1 with JupyterTalk > c) whatever else is necessary, hopefully not to much >

Aug. 24, 2018

Re: [Pharo-users] How do I get ZeroMQ working?

by Jesus Mari Aguirre

I see...anaconda installs everything in home directory. ZeroMQ version won't be a problem, probably it is backward compatible. I will include $home/anaconda3/lib in the searching path. El vie., 24 ago. 2018 a las 7:10, H. Hirzel (<hannes.hirzel(a)gmail.com>) escribiÃ³: > On 8/24/18, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > > Thank you, JesÃºs MarÃ. I reloaded your updated JupyterTalk Pharo > > Smalltalk package which now looks for more places to find the library > > ZeroMQ. > > > > Unfortunately it still did not find the ZeroMQ library. > > > > The following command shows where there is a ZeroMQ library: [1] > > > > root@Latitude2:/# find / -name libzmq*.so.* > > /home/user25/anaconda3/lib/libzmq.so.5 > > /home/user25/anaconda3/lib/libzmq.so.5.1.5 > > /home/user25/anaconda3/pkgs/zeromq-4.2.5-h439df22_0/lib/libzmq.so.5 > > /home/user25/anaconda3/pkgs/zeromq-4.2.5-h439df22_0/lib/libzmq.so.5.1.5 > > ------ > > > > So there is > > libzmq.so.5 > > and not > > libzmq.so.3 > > > > which you need for JuypterTalk. > > > > So I need to install either libzmq.so.3 library separately or > > JupyterTalk needs to be changed to also look for libzmq.so.3, > > libzmq.so.4 or libzmq.so.5 > > > > I'll look into your code and try a hack to look for > > /home/user25/anaconda3/lib/libzmq.so.5 > > I assume the hack has to be done here > > > https://github.com/jmari/JupyterTalk/commit/b2155e64bcb8904f0cf8b830f9a78ed… > > the question is how... > > > --Hannes > > > > > ------------------------------------------------------------------------------------------------------------------ > > > > [1] Context: ZeroMQ was installed by the Python Anaconda distribution. > > I t is the recommended way for installing the JupyterNotebook > > http://jupyter.org/install > > > > The idea is that you get everything in one big installation ('a > > distribution') > > > > However it seems that going for opteion 2 (pip installation seems to > > be easier next time). > > But as I have a working Jupyter installation now it is left with > > getting a ZeroMQ installation which JupyterTalk finds. > > > > > > > > On 8/23/18, JesÃºs MarÃ <jmariaguirre(a)gmail.com> wrote: > >> Load it again I've updated the unix64ModuleName to search for the > correct > >> library name. > >> > >> > >> > >> > >> -- > >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >> > >> > > > >

Aug. 24, 2018