- Pharo-users - lists.pharo.org

MetaLink after on a message with argument
by Peter Uhnak Sept. 4, 2018

Sept. 4, 2018

Hi, I'm trying to install an #after metalink to a MessageNode that has an argument, however it fails because the bytecode is missing the argument (I think). Note that #before control worked fine, so I am not sure whether this is a bug, not yet supported, or am I doing something wrong. code (tested in P6.1): ~~~~~~~~~~~~~~~~~ Something compile: 'add: aNumber ^ 1 + aNumber'. after := MetaLink new metaObject: [ self logCr: 'after' ]; selector: #value; control: #after. " after uninstall. " ast := (Something>>#add:) ast. node := ast sendNodes first. node link: after. Something new add: 3. ~~~~~~~~~~~~~~~~~~~ error: [image: image.png] Thanks! Peter

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Only 7 days lefts before the ESUG Innovation Technology Awards
by N. Bouraqadi Sept. 3, 2018

Sept. 3, 2018

Hi Everyone, The 15th Edition of the ESUG Innovation Technology Awards will take place in only one week. You have only few days left to submit your projects. Remember: Any project is eligible as long as it involves Smalltalk. All dialects are of course welcome. See you in Sardinia, Noury https://esug.github.io/2018-Conference/awardsCall2018.html

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NeoCVS vs NeoCSV
by HernÃ¡n Morales Durand Sept. 3, 2018

Sept. 3, 2018

Hi. Just wanted to note this could be a source of confusion: https://github.com/svenvc/NeoCVS instead of https://github.com/svenvc/NeoCSV Cheers, HernÃ¡n

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Re: [Pharo-users] About describing the JupzterTalk installation process: Which Linux distribution are you using?
by Jesus Mari Aguirre Aug. 31, 2018

Aug. 31, 2018

Hi Mr.Hirzel about opening SVG, files, in fact you can open SVG as a morph using ( ASVGMorph fromFile: 'file.svg') but first you need to install XML parser from the catalog. I think there is a missing dependency. so you can do self display openInJupyter:(ASVGMorph fromFile: 'file.svg'). About nteract and jupytertalk, I mean you need to install jupyter if you want to use other kernels but node kernel so your plan about installing only nteract+jupyterTalk wonn't be factible. I already have JupyterTalk working on Pharo 32 bits(windows) but it is harder to install than Linux or Mac because you need to install zeromq 32 bits...it is not so complicated but you need to install an additional dependency. In a few days it will be available in JupyterTalk repository. El miÃ©., 29 ago. 2018 a las 19:38, H. Hirzel (<hannes.hirzel(a)gmail.com>) escribiÃ³: > About Windows ... do not worry, time will tell... > > At the moment I have it on Linux and that is fine. > > I am now more interested in actually USING it. > > See my question about giving back SVG graphics results > > > On 8/29/18, Jesus Mari Aguirre <jmariaguirre(a)gmail.com> wrote: > > I think Windows will not be possible by now, there's not Pharo 64 bits on > > windows...I don't know what version of zeroMQ uses nteract, I think there > > is a 32 bits version... > > I'll do my best but I can not guarantee to have JupyterTalk on Windows. > > > > > > El miÃ©., 29 ago. 2018 a las 6:30, H. Hirzel (<hannes.hirzel(a)gmail.com>) > > escribiÃ³: > > > >> Thank you for keeping me informed. > >> > >> I now manage to get Linux installations working, but the process is > >> still not consistent, see the installation log for Ubuntu 18.04 below. > >> > >> It could be that it is much easier for Windows, at the moment I only > >> have a 32bit Windows installation, so I cannot check. > >> > >> I'd like to focus now on _using_ the Pharo Smalltalk kernel, see > >> upcoming mail on the list. > >> > >> --Hannes > >> > >> ======================================== > >> > >> > >> New Ubuntu 18.04 installation > >> > >> sudo apt-get update > >> > >> sudo apt install python3-pip > >> > >> > >> pip3 install jupyter > >> > >> did not work the first time (network issues?) > >> > >> pip3 install jupyter > >> > >> sudo apt install jupyter-core > >> > >> sudo apt install jupyter-notebook > >> > >> > >> > >> > >> > >> > ================================================================================ > >> Installation log > >> > >> > ================================================================================ > >> > >> user9@Latitude2:~$ > >> > >> python3 --version > >> Python 3.6.5 > >> > >> > >> sudo apt-get update > >> > >> sudo apt install python3-pip > >> > >> user9@Latitude2:~$ sudo apt install python3-pip > >> [sudo] password for user9: > >> Reading package lists... Done > >> Building dependency tree > >> Reading state information... Done > >> The following additional packages will be installed: > >> build-essential dh-python dpkg-dev fakeroot g++ g++-7 gcc gcc-7 > >> libalgorithm-diff-perl libalgorithm-diff-xs-perl > >> libalgorithm-merge-perl > >> libasan4 libatomic1 libc-dev-bin libc6-dev libcilkrts5 libexpat1-dev > >> libfakeroot libgcc-7-dev libitm1 liblsan0 libmpx2 libpython3-dev > >> libpython3.6-dev libquadmath0 libstdc++-7-dev libtsan0 libubsan0 > >> linux-libc-dev make manpages-dev python-pip-whl python3-dev > >> python3-distutils python3-lib2to3 python3-setuptools python3-wheel > >> python3.6-dev > >> Suggested packages: > >> debian-keyring g++-multilib g++-7-multilib gcc-7-doc libstdc++6-7-dbg > >> gcc-multilib autoconf automake libtool flex bison gcc-doc > >> gcc-7-multilib > >> gcc-7-locales libgcc1-dbg libgomp1-dbg libitm1-dbg libatomic1-dbg > >> libasan4-dbg liblsan0-dbg libtsan0-dbg libubsan0-dbg libcilkrts5-dbg > >> libmpx2-dbg libquadmath0-dbg glibc-doc libstdc++-7-doc make-doc > >> python-setuptools-doc > >> The following NEW packages will be installed: > >> build-essential dh-python dpkg-dev fakeroot g++ g++-7 gcc gcc-7 > >> libalgorithm-diff-perl libalgorithm-diff-xs-perl > >> libalgorithm-merge-perl > >> libasan4 libatomic1 libc-dev-bin libc6-dev libcilkrts5 libexpat1-dev > >> libfakeroot libgcc-7-dev libitm1 liblsan0 libmpx2 libpython3-dev > >> libpython3.6-dev libquadmath0 libstdc++-7-dev libtsan0 libubsan0 > >> linux-libc-dev make manpages-dev python-pip-whl python3-dev > >> python3-distutils python3-lib2to3 python3-pip python3-setuptools > >> python3-wheel python3.6-dev > >> 0 upgraded, 39 newly installed, 0 to remove and 60 not upgraded. > >> Need to get 32.3 MB of archives. > >> After this operation, 141 MB of additional disk space will be used. > >> Do you want to continue? [Y/n] y > >> > >> > >> pip3 install jupyter > >> > >> > >> > >> Error > >> > >> > >> Downloading > >> > https://files.pythonhosted.org/packages/94/dd/fe6c4d683b09eb05342bd2816b777… > >> (89kB > >> < > https://files.pythonhosted.org/packages/94/dd/fe6c4d683b09eb05342bd2816b777… > > > >> ) > >> 22% |ââââââââ | 20kB 24kB/s eta > >> 0:00:03Exception: > >> Traceback (most recent call last): > >> File > >> > "/usr/share/python-wheels/urllib3-1.22-py2.py3-none-any.whl/urllib3/response.py", > >> line 302, in _error_catcher > >> yield > >> File > >> > "/usr/share/python-wheels/urllib3-1.22-py2.py3-none-any.whl/urllib3/response.py", > >> line 384, in read > >> > >> > >> REDO > >> > >> > >> pip3 install jupyter > >> > >> > >> But then > >> > >> jupyter > >> > >> Command 'jupyter' not found, but can be installed with: > >> > >> sudo apt install jupyter-core > >> > >> user9@Latitude2:~$ sudo apt install jupyter-core > >> [sudo] password for user9: > >> Reading package lists... Done > >> Building dependency tree > >> Reading state information... Done > >> The following additional packages will be installed: > >> python3-decorator python3-ipython-genutils python3-jupyter-core > >> python3-traitlets > >> The following NEW packages will be installed: > >> jupyter-core python3-decorator python3-ipython-genutils > >> python3-jupyter-core > >> python3-traitlets > >> 0 upgraded, 5 newly installed, 0 to remove and 60 not upgraded. > >> Need to get 132 kB of archives. > >> > >> > >> > >> > >> > >> jupyter --version > >> 4.4.0 > >> > >> > >> jupyter notebook > >> Error executing Jupyter command 'notebook': [Errno 2] No such file or > >> directory > >> user9@Latitude2:~$ Error executing Jupyter command 'notebook': [Errno > >> 2] No such file or directory > >> Error: command not found > >> user9@Latitude2:~$ > >> > >> > >> > >> > >> sudo apt install jupyter-notebook > >> Reading package lists... Done > >> Building dependency tree > >> Reading state information... Done > >> The following additional packages will be installed: > >> fonts-font-awesome fonts-mathjax javascript-common > >> jupyter-nbextension-jupyter-js-widgets libjs-backbone libjs-bootstrap > >> libjs-bootstrap-tour libjs-codemirror libjs-es6-promise libjs-jed > >> libjs-jquery > >> libjs-jquery-typeahead libjs-jquery-ui libjs-marked libjs-mathjax > >> libjs-moment > >> libjs-requirejs libjs-requirejs-text libjs-text-encoding > >> libjs-underscore libjs-xterm > >> liblua5.1-0 libluajit-5.1-2 libluajit-5.1-common pandoc pandoc-data > >> python3-bleach > >> python3-dateutil python3-entrypoints python3-html5lib > python3-ipykernel > >> python3-ipython python3-ipywidgets python3-jinja2 python3-jsonschema > >> python3-jupyter-client python3-mistune python3-nbconvert > >> python3-nbformat > >> python3-notebook python3-pandocfilters python3-pickleshare > >> python3-prompt-toolkit > >> python3-pygments python3-simplegeneric python3-terminado > >> python3-testpath > >> python3-tornado python3-wcwidth python3-webencodings python3-zmq > >> Suggested packages: > >> apache2 | lighttpd | httpd python-ipywidgets libjs-jquery-lazyload > >> libjs-json > >> libjs-jquery-ui-docs fonts-mathjax-extras fonts-stix libjs-mathjax-doc > >> texlive-latex-recommended texlive-xetex texlive-luatex pandoc-citeproc > >> texlive-latex-extra context wkhtmltopdf python-bleach-doc > >> python3-genshi python3-lxml > >> python-ipywidgets-doc python-jinja2-doc python-notebook-doc > >> ttf-bitstream-vera > >> python3-pycurl python-tornado-doc python3-twisted > >> The following NEW packages will be installed: > >> fonts-font-awesome fonts-mathjax javascript-common > >> jupyter-nbextension-jupyter-js-widgets jupyter-notebook libjs-backbone > >> libjs-bootstrap libjs-bootstrap-tour libjs-codemirror > >> libjs-es6-promise libjs-jed > >> libjs-jquery libjs-jquery-typeahead libjs-jquery-ui libjs-marked > >> libjs-mathjax > >> libjs-moment libjs-requirejs libjs-requirejs-text libjs-text-encoding > >> libjs-underscore libjs-xterm liblua5.1-0 libluajit-5.1-2 > >> libluajit-5.1-common pandoc > >> pandoc-data python3-bleach python3-dateutil python3-entrypoints > >> python3-html5lib > >> python3-ipykernel python3-ipython python3-ipywidgets python3-jinja2 > >> python3-jsonschema python3-jupyter-client python3-mistune > >> python3-nbconvert > >> python3-nbformat python3-notebook python3-pandocfilters > >> python3-pickleshare > >> python3-prompt-toolkit python3-pygments python3-simplegeneric > >> python3-terminado > >> python3-testpath python3-tornado python3-wcwidth > >> python3-webencodings python3-zmq > >> 0 upgraded, 52 newly installed, 0 to remove and 60 not upgraded. > >> Need to get 20.7 MB of archives. > >> After this operation, 142 MB of additional disk space will be used. > >> Do you want to continue? [Y/n] > >> > >> > >> > >> > >> Setting up libjs-bootstrap-tour (0.12.0+dfsg-1) ... > >> Setting up python3-notebook (5.2.2-1) ... > >> Setting up jupyter-nbextension-jupyter-js-widgets (6.0.0-2) ... > >> /usr/lib/python3.6/runpy.py:125: RuntimeWarning: > >> 'notebook.nbextensions' found in sys.modules after import of package > >> 'notebook', but prior to execution of 'notebook.nbextensions'; this > >> may result in unpredictable behaviour > >> warn(RuntimeWarning(msg)) > >> Enabling notebook extension jupyter-js-widgets/extension... > >> - Validating: OK > >> Setting up jupyter-notebook (5.2.2-1) ... > >> Setting up python3-ipywidgets (6.0.0-2) ... > >> Processing triggers for libc-bin (2.27-3ubuntu1) ... > >> > >> user9@Latitude2:~$ > >> > >> > >> > >> jupyter notebook > >> [I 05:23:54.607 NotebookApp] Writing notebook server cookie secret to > >> /run/user/1000/jupyter/notebook_cookie_secret > >> [I 05:23:55.398 NotebookApp] Serving notebooks from local directory: > >> /home/user9 > >> [I 05:23:55.398 NotebookApp] 0 active kernels > >> [I 05:23:55.398 NotebookApp] The Jupyter Notebook is running at: > >> [I 05:23:55.399 NotebookApp] > >> > >> > http://localhost:8888/?token=f3e847ae72b205b350efa0739bfc0c575a44a52c4e02aa… > >> [I 05:23:55.399 NotebookApp] Use Control-C to stop this server and > >> shut down all kernels (twice to skip confirmation). > >> [C 05:23:55.406 NotebookApp] > >> > >> Copy/paste this URL into your browser when you connect for the first > >> time, > >> to login with a token: > >> > >> > http://localhost:8888/?token=f3e847ae72b205b350efa0739bfc0c575a44a52c4e02aa… > >> [I 05:23:58.884 NotebookApp] Accepting one-time-token-authenticated > >> connection from 127.0.0.1 > >> [Parent 5668, Gecko_IOThread] WARNING: pipe error (59): Connection > >> reset by peer: file > >> > >> > /build/firefox-oscv9o/firefox-61.0.1+build1/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, > >> line 353 > >> > >> > >> > >> > >> > >> > >> > >> > >> On 8/27/18, Jesus Mari Aguirre <jmariaguirre(a)gmail.com> wrote: > >> > *a) https://www.nteract.io/ <https://www.nteract.io/>b) Pharo 6.1c) > >> > JuypterTalkd) kernel.json in /usr/local/share/jupyter/kernels/pharo * > >> > > >> > OK, I'll keep in mind in my instalation script. I'll keep you > informed. > >> > > >> > Regarding on Windows instalation, probably it won't be so hard, It was > >> very > >> > easy from Mac os X to Linux, I'm sure Windows will not be different. > >> > > >> > > >> > > >> > El lun., 27 ago. 2018 a las 13:46, H. Hirzel > >> > (<hannes.hirzel(a)gmail.com>) > >> > escribiÃ³: > >> > > >> >> Thank you for the installation sequence. Good that you will add an > >> >> installation script to your repository. If you label it as 'example > >> >> installation script it gives people a clue what is involved and saves > >> >> time. And they will know that it might not work in all cases or > >> >> different solutions are possible. > >> >> > >> >> Good to know how to get a python3.6 environment in Ubuntu 16.04. > >> >> > >> >> My current Ubuntu 16.04 based distribution has > >> >> > >> >> python3 --version > >> >> Python 3.5.2 > >> >> > >> >> > >> >> Just for trying I only did > >> >> > >> >> sudo add-apt-repository ppa:deadsnakes/ppa > >> >> pip3 install jupyter > >> >> > >> >> and then > >> >> > >> >> jupyter notebook > >> >> > >> >> works. > >> >> > >> >> But as you see from the mail to the list I am primarily interested in > >> >> getting an easy to use installation sequence and it seems that the > >> >> following > >> >> > >> >> a) https://www.nteract.io/ > >> >> b) Pharo 6.1 > >> >> c) JuypterTalk > >> >> d) kernel.json in /usr/local/share/jupyter/kernels/pharo > >> >> > >> >> should be sufficient. > >> >> > >> >> However at the moment I now have some working jupyter notebook > >> >> installations and I will start to work with them. In particular I am > >> >> interested in how to output html and svg contents from the Pharo > >> >> kernel. > >> >> > >> >> --Hannes > >> >> > >> >> > >> >> > >> >> > >> >> On 8/25/18, Jesus Mari Aguirre <jmariaguirre(a)gmail.com> wrote: > >> >> > sorry... I press ctrl+tab in google mail... as I was saying > >> >> > I did: > >> >> > > >> >> > sudo add-apt-repository ppa:deadsnakes/ppa > >> >> > sudo apt-get update > >> >> > sudo apt-get install python3.6 > >> >> > pip3 install jupyter > >> >> > > >> >> > I think this was the sequence of commands > >> >> > > >> >> > If you are going to use ipywidgets (still not supported by > >> JupyterTalk) > >> >> > pip3 install ipywidgets > >> >> > jupyter nbextension enable --py widgetsnbextension > >> >> > > >> >> > I'm preparing a bash script to make it easy, but jupyter is > >> >> > sometimes > >> a > >> >> > pain in the neck. > >> >> > > >> >> > > >> >> > > >> >> > > >> >> > > >> >> > > >> >> > El sÃ¡b., 25 ago. 2018 a las 21:07, Jesus Mari Aguirre (< > >> >> > jmariaguirre(a)gmail.com>) escribiÃ³: > >> >> > > >> >> >> I did: > >> >> >> sudo add-apt-repository ppa:deadsnakes/ppa > >> >> >> sudo apt-get update > >> >> >> sudo apt-get install python3.6 > >> >> >> pip3 install jupyter > >> >> >> > >> >> >> El sÃ¡b., 25 ago. 2018 a las 16:39, H. Hirzel (< > >> hannes.hirzel(a)gmail.com > >> >> >) > >> >> >> escribiÃ³: > >> >> >> > >> >> >>> Hello Jesus Mari > >> >> >>> > >> >> >>> On 8/25/18, Jesus Mari Aguirre <jmariaguirre(a)gmail.com> wrote: > >> >> >>> > I don't care about python version but Jupyter does. I think > last > >> >> >>> version of > >> >> >>> > Jupyter needs Python 3 and Pip3. > >> >> >>> > >> >> >>> Going for Python 3 is what I do in Ubuntu 16.04 and Ubuntu 18.04 > >> >> >>> > >> >> >>> The second approach on > >> >> >>> http://jupyter.org/install > >> >> >>> for "experienced" python users (I am not is) > >> >> >>> > >> >> >>> python3 -m pip install --upgrade pip > >> >> >>> > >> >> >>> This leaves me with an unusable pip3 > >> >> >>> > >> >> >>> pip3 --version > >> >> >>> Traceback (most recent call last): > >> >> >>> File "/usr/bin/pip3", line 9, in <module> > >> >> >>> from pip import main > >> >> >>> ImportError: cannot import name 'main' > >> >> >>> > >> >> >>> So I did not upgrade pip and directly did > >> >> >>> > >> >> >>> python3 -m pip install jupyter > >> >> >>> > >> >> >>> In one installation this morning this worked, in another one in > >> >> >>> the > >> >> >>> evening (network quality was not so good) it did not work even > >> >> >>> after > >> >> >>> several tries. (details below) > >> >> >>> > >> >> >>> > I installed everything on Ubuntu 14. > >> >> >>> Good to know that you can even have it in Ubuntu 14. > >> >> >>> I use Ubuntu 16.04 > >> >> >>> > >> >> >>> How did you install Juypter in Ubuntu 14.04? > >> >> >>> > >> >> >>> Could you please send me the result of > >> >> >>> > >> >> >>> history | grep 'install jupyter' > >> >> >>> > >> >> >>> > >> >> >>> - one installation was fine > >> >> >>> > >> >> >>> - the other gave an error message.[1] Jupyter did not install. > >> >> >>> It bothers me that I cannot repeat the process easily. In the > end > >> >> >>> something like a snap package which contains everything the > >> necessary > >> >> >>> jupyter files and Pharo6.1 with JupyterTalk installed might be > the > >> >> >>> way > >> >> >>> to go for installing it on different systems. > >> >> >>> > >> >> >>> > >> >> >>> > I'm very surprised you don't need to create the kernel.json > >> >> >>> > file, > >> I > >> >> >>> > can > >> >> >>> not > >> >> >>> > explain how does Jupyter starts Pharo without the path and arts > >> >> >>> > to > >> >> the > >> >> >>> > Pharo VM... > >> >> >>> > >> >> >>> That was in a third Ubuntu setup. It is probably caused by the > >> >> >>> installation sequence. I'll have to check again. > >> >> >>> > >> >> >>> That is in Ubuntu 18.04 and I used > >> >> >>> > >> >> >>> sudo apt-get install jupyter-core > >> >> >>> sudo apt-get install jupyter-notebook > >> >> >>> > >> >> >>> Seems to be in the repository, but it was not sufficient. > >> >> >>> > >> >> >>> This is why I like the *nteract* approach. One download which > >> >> >>> includes > >> >> >>> everything. > >> >> >>> > >> >> >>> Webbrowser with notebook, node kernel. > >> >> >>> > >> >> >>> --Hannes > >> >> >>> > >> >> >>> > El sÃ¡b., 25 ago. 2018 6:53, H. Hirzel <hannes.hirzel(a)gmail.com > > > >> >> >>> escribiÃ³: > >> >> >>> > > >> >> >>> >> Hello Jesus Mari > >> >> >>> >> > >> >> >>> >> For my JupyterTalk installation tests I have been using Ubuntu > >> >> >>> >> 18.04.1 > >> >> >>> so > >> >> >>> >> far. > >> >> >>> >> Python 3. > >> >> >>> >> > >> >> >>> >> My production environment is 16.04. So I still need to do the > >> >> >>> >> installation there. > >> >> >>> >> > >> >> >>> >> Is your python environment version 2 or 3? > >> >> >>> >> > >> >> >>> >> Regards > >> >> >>> >> Hannes > >> >> >>> >> > >> >> >>> > > >> >> >>> --------------------------- > >> >> >>> > >> >> >>> [1] > >> >> >>> user26@Latitude-E64102:~$ pip3 install jupyter > >> >> >>> Collecting jupyter > >> >> >>> Using cached > >> >> >>> > >> >> > >> > https://files.pythonhosted.org/packages/83/df/0f5dd132200728a86190397e1ea87… > >> >> >>> Collecting nbconvert (from jupyter) > >> >> >>> Using cached > >> >> >>> > >> >> > >> > https://files.pythonhosted.org/packages/39/ea/280d6c0d92f8e3ca15fd798bbcc2e… > >> >> >>> Collecting ipykernel (from jupyter) > >> >> >>> Using cached > >> >> >>> > >> >> > >> > https://files.pythonhosted.org/packages/ab/3f/cd624c835aa3336a9110d0a99e150… > >> >> >>> Collecting ipywidgets (from jupyter) > >> >> >>> Using cached > >> >> >>> > >> >> > >> > https://files.pythonhosted.org/packages/34/3a/5b258ea6d584f5a8527c2295d0ebf… > >> >> >>> Collecting notebook (from jupyter) > >> >> >>> Downloading > >> >> >>> > >> >> > >> > https://files.pythonhosted.org/packages/5e/7c/7fd8e9584779d65dfcad9fa2e09c7… > >> >> >>> (8.9MB) > >> >> >>> 52% |âââââââââââââââââ | 4.7MB 50kB/s eta > >> >> >>> 0:01:22Exception: > >> >> >>> Traceback (most recent call last): > >> >> >>> File > >> >> >>> > >> >> > >> > "/usr/share/python-wheels/urllib3-1.13.1-py2.py3-none-any.whl/urllib3/response.py", > >> >> >>> line 226, in _error_catcher > >> >> >>> yield > >> >> >>> File > >> >> >>> > >> >> > >> > "/usr/share/python-wheels/urllib3-1.13.1-py2.py3-none-any.whl/urllib3/response.py", > >> >> >>> line 301, in read > >> >> >>> data = self._fp.read(amt) > >> >> >>> File > >> >> >>> > >> >> > >> > "/usr/share/python-wheels/CacheControl-0.11.5-py2.py3-none-any.whl/cachecontrol/filewrapper.py", > >> >> >>> line 49, in read > >> >> >>> data = self.__fp.read(amt) > >> >> >>> File "/usr/lib/python3.5/http/client.py", line 448, in read > >> >> >>> n = self.readinto(b) > >> >> >>> File "/usr/lib/python3.5/http/client.py", line 488, in readinto > >> >> >>> n = self.fp.readinto(b) > >> >> >>> File "/usr/lib/python3.5/socket.py", line 575, in readinto > >> >> >>> return self._sock.recv_into(b) > >> >> >>> File "/usr/lib/python3.5/ssl.py", line 929, in recv_into > >> >> >>> return self.read(nbytes, buffer) > >> >> >>> File "/usr/lib/python3.5/ssl.py", line 791, in read > >> >> >>> return self._sslobj.read(len, buffer) > >> >> >>> File "/usr/lib/python3.5/ssl.py", line 575, in read > >> >> >>> v = self._sslobj.read(len, buffer) > >> >> >>> socket.timeout: The read operation timed out > >> >> >>> > >> >> >>> During handling of the above exception, another exception > >> >> >>> occurred: > >> >> >>> > >> >> >>> Traceback (most recent call last): > >> >> >>> File "/usr/lib/python3/dist-packages/pip/basecommand.py", line > >> 209, > >> >> in > >> >> >>> main > >> >> >>> status = self.run(options, args) > >> >> >>> File "/usr/lib/python3/dist-packages/pip/commands/install.py", > >> line > >> >> >>> 328, in run > >> >> >>> wb.build(autobuilding=True) > >> >> >>> File "/usr/lib/python3/dist-packages/pip/wheel.py", line 748, > in > >> >> build > >> >> >>> .... > >> >> >>> 231, in _error_catcher > >> >> >>> raise ReadTimeoutError(self._pool, None, 'Read timed out.') > >> >> >>> requests.packages.urllib3.exceptions.ReadTimeoutError: > >> >> >>> HTTPSConnectionPool(host='files.pythonhosted.org', port=443): > Read > >> >> >>> timed out. > >> >> >>> You are using pip version 8.1.1, however version 18.0 is > >> >> >>> available. > >> >> >>> You should consider upgrading via the 'pip install --upgrade pip' > >> >> >>> command. > >> >> >>> > >> >> >> > >> >> > > >> >> > >> > > >> > > >

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Making TDD in pharo work properly (aka - walkback on a missing class is nasty)
by Tim Mackinnon Aug. 31, 2018

Aug. 31, 2018

Hi guys - Iâve been hammering on the exercism project to get pharo shining over thereâ¦ its been a good side distraction (there is lots of energy in that community to) and its made me really push my use of Iceberg & git as well as learn some fo the newish file reference stuff (still getting good at that - but like the approach), Anyway - Iâve got an Alpha working, and users can pull down a zero conf pharo image and eval a little script that will get them up and running (which is pretty slick). So the story then goes - Exercism is trying to simulate TDD and help you learn a new language (aka Pharo or Go or Python etc). To this end, theyâve got an active community building up little test exercises with suites of tests that new users can run to help them learn the syntax/essence of the language track theyâve signed up to. You run the tests, develop your solution and then submit it to a community to get feedback and then progress. Pretty standard - we can play in this pond too - and it turns out that Tonel actually makes it pretty easy to submit readable solutions that will fit on their website. YAY. The trouble is - when you pull down a new exercise - I use the TonelReader to pull the code into your image - and I thought it would be cute to just pull in the TestCase so that users can simulate the full TDD cycle - where you can create things in the debuggerâ¦ this is where it all began right? So you hit a clanger when you do this - and in a way its a bit of a legacy thing weâve carried around (and possibly should fix better). When Tonel reads in the TesCase, it normally will reference a class this isnât there (Iâve deliberately left the solution out). It does the right thing and put a nil placeholder in the code so that it can read it in. HOWEVER - when you run your test and hit that nil class placeholder we do a very bad job of dealing with this in the debugger. And if you think about it - we also do a bad job when typing in code too - we essentially insist that declare a class then and there - unlike a selector which can happily be late bound. So back to my TDD example - user gets a debugger with a nil class error - the create button is actually not helpful for you as it only creates methods. So our âlive in the debuggerâ mantra is a bit less obvious here. What you had to do is make a change to the source (like a space) so that you can reserve the method - which then causes you to get the âcreate class promptâ. So we have the ability - just donât expose it very well - however now you have a missing method - but again its not so obvious that you have to resume your debugger (it hasnât resumed when you created the class) - and then you will get another error for the missing method that the create button will now resolve. This feels very clunky to me - and makes me feel like Iâm mis-selling smalltalk where we have a bullet point about âAmazing for debuggingâ¦â. This feels fixable though right? Iâm wondering about thoughts though before jumping inâ¦ Tim p.s. - weâre building some exercises for exercism and getting that process streamlined so hopefully many more people can help - and maybe we can augment the great learning courses/videos/books that we already have.

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Loading a dll usinf UFFI on Win32
by JesÃºs MarÃ Aug. 30, 2018

Aug. 30, 2018

I'm trying to make zeromq work on win 32. zeromq lib is in C:\Program Files (x86)\ZeroMQ 4.0.4\bin\libzmq-v100-mt-4_0_4.dll . My Api #win32ModuleName returns exactly 'C:\Program Files (x86)\ZeroMQ 4.0.4\bin\libzmq-v100-mt-4_0_4.dll' but when I try lo execute any call it returns "module not found" error. Any suggestion? -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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When we create a missing method in debugger - why does it end with a dot?
by Tim Mackinnon Aug. 30, 2018

Aug. 30, 2018

I am looking at porting my missing class creation code into Pharo 7, and I notice there is a DynamicMessageImplementor that does this for methods - but Iâm wondering why when we create a missing method with âself souldBeImplemented.â with a trailing â.â? The Smalltalk style guide normally says the last statement shouldnât have a dot - and I notice some recent cleanups removed some dots on methods (presumably the formatter). This is a bit of a special case as the intent is to replace that method - but shouldnât we create without the dot to set a good example anyway? If so, I can include that change in my pr. Tim

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Latest Pharo 7 image doesn't give normal debugger on a method with undefined class method - get System Error
by Tim Mackinnon Aug. 30, 2018

Aug. 30, 2018

I was going to look at testing my Create class in the debugger fixes however the latest image behaves in a manner Iâve not seen before. In a fresh P7 image - build 1198 64bit osx (with latest vm downloaded by launcher) - I have created a new class in a new package TimTest:TimTest>>testMethod "self new testMethod" FooObject new someMethod Where FooObject and someMethod are undefined and when I saved the method I left them as undefined. I then evaluated - TimeTest new testMethod in a playground and I get a white screen with *** System error handling failed *** (screenshot below) In an earlier image (build 1167) this wasnât the case? Has something been broken? Tim

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Tracing Method Calls
by Arturo Zambrano Aug. 29, 2018

Aug. 29, 2018

Hi all, I have a piece of undocumented software that I need understand ... One thing I would like to do is to have a complete trace of method calls (receivers, parameters) for certain scenarios. As an "aspects"guy, my first idea was to use Phantom, but it seems not active anymore. Could someone please point me to some tools that I could use for this? (using Pharo 6, 6.1 or 7) Thanks in advance Cheers Arturo

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Jupyter notebooks / Dynabook / JupyterTalk
by H. Hirzel Aug. 29, 2018

Aug. 29, 2018

Hello What is the status of this project? https://github.com/jmari/JupyterTalk Hannes

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