June 2016 - Pharo-users - lists.pharo.org

Dependency error trying to submit a proposed enhancement to Pharo 5.0 on Smalltalkhub.com
by Mark Bratcher June 15, 2016

June 15, 2016

I am trying to push a simple enhancement to Pharo50inbox on smalltalkhub.com. I am running Pharo 5.0 (downloaded within the last month) on Windows 10. I started from a completely clean image, made my small change (about 5 lines in an existing Pharo 5.0 class), and I followed all of the directions to contribute a proposed fix <http://pharo.org/contribute-propose-fix> very carefully. All the steps went smoothly, as expected, until it came time to pull and verify the slice. Here is a snapshot of my Monticello browser right BEFORE pushing <http://i.stack.imgur.com/Zv2bZ.jpg> the suggested change slice. What is listed as dirty are the SLICE itself (containing Regex-Core (TheIntegrator.38)) and the package itself, listed separately, as dirty (Regex-Core (TheIntegrator.38)). As indicated in the instructions, I highlighted the SLICE and did a Save to the `http://smalltalkhub.com/mc/Pharo/Pharo50Inbox/main` repository. That went smoothly. After clicking save, Monticello showed <http://i.stack.imgur.com/BYfVf.jpg> that the SLICE (with subpackage) and the separately listed package were no longer marked dirty and version had been bumped with my name associated (both now called, "Regex-Core (MarkBratcher.39)"). The dialog that popped up after the save indicated that there is a dependency on `Regex-Core (MarkBratcher.39)` which surprised me a bit, but since I followed the instructions exactly, I wasn't concerned yet... When I tried to verify, I started with a clean image again (as recommended in the instructions, opened Monticello, opened the Pharo50Inbox repository, found and highlighted my slice, and clicked "Load". Then I got an error that there was a missing dependency on the package: `Regex-Core (MarkBratcher.39)`. I thought that package was integrated as part of the SLICE. If I followed the linked instructions precisely, what am I missing?

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Re: [Pharo-users] Pharo 5 accented chars bug/regression
by Ben Coman June 15, 2016

June 15, 2016

On Wed, Jun 15, 2016 at 1:27 AM, Milan Vavra via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > ---------- Forwarded message ---------- > From: Milan Vavra <vavra_milan(a)yahoo.com> > To: pharo-users(a)lists.pharo.org > Cc: > Date: Tue, 14 Jun 2016 09:47:21 -0700 (PDT) > Subject: Re: Pharo 5 accented chars bug/regression > Thank you all, > your feedback is appreciated. > > You have raised many points and so I probably won't be addressing > them all. But thanks again for all. I did read all the responses. > I will re-read them for more inspiration. > > I understand posting on this list is like going into a room with over > a 100 people and saying something. So if 100 people spend 10 minutes to > read this - that's a lot of minutes. > > So I don't want to waste your time. Feel free NOT to read this. But if > you do read this, there is an attempt at a joke towards the end. You > might even find it funny. Or not. > > I'm posting this through Nabble and it seems to post everything I post > twice. Once as 'Pharo Smalltalk Users mailing list' and as 'Milan Vavra' > too. I have no idea why. Enlighten me if you can. > > My original motivation was and is to be able to show to a potential > employer before and/or during the interview the sort problem fixing that > I can do. Even should the job have nothing to do with Smalltalk or Pharo > (then it might be an opportunity for a little Pharo/Smalltalk evangelism > but I digress). If there is an easy way to show that version X has a > problem - then I can show that I have the skills to fix that. If it is > fixed in the meantime I can just point to the fixed version Y and say: > "yeah, I fixed that". If there is some supporting evidence that should > give more credibility to my other claims that are unverifiable due to > the fact that they involved proprietary code that I just can not show > anyone. So their value in an interview is limited because it depends > on trust or a reference from someone else (trust again but vested in > the reference). But the Pharo fix should be an independently verifiable > claim. Of course there is a chance that I hired someone to fix that issue > for me and I don't have the skills. So a few follow up questions should > be in order to see whether or not I know what I am talking about. You wont get the best value from this bringing it up as a new topic in an interview. Interviews are a big cost for the employer and usually by the time you get there, they already think they want you. The interviewer already has an agenda basically verifying things they have already learnt about you. What you want to do is get it on the agenda pre-interview, to help you get through the front door to interview stage. The *very* best thing you can do is write a blog about your experiences, then link to it on your resume. The interviewer *will* review it and they "get to know you" - which really helps you stand out in their mind from all the other pieces of paper that float across their desk. Take a few articles to write about your journey discovering Pharo, intermediate experience, what makes it stand out from other environments and culminate in describing your feelings about making your first contribution and *why* you've chosen to do so. You might even get your post linked from Pharo Weekly. btw, after your contribution is integrated, submit your details to be added to pharo contributors http://pharo.org/about > On positive feedback. I think negative feedback is ok. Please > do give me negative feedback. I can take it. It can point me to > perceived problems I were not aware of. What I do want however is > ***constructive*** feedback. Actionable feedback. If you have a strong > opinion state it clearly but it should be of the kind: "To do [thing] > is stupid/ugly/whatever. We/you should do [something else] because > [explanation]." > > > I think Peter raised the issue: "is it fair that everyone gets mentioned > even though their contributions are not comparable". I am not ashamed > to say: "YES!". However it is not the same as saying that what I can > (potentially, you have not seen it yet) do is more valuable than what > others did in making Pharo happen in the first place. I had a minor role > in the movie. But I deserve a place in the credits. If there were no you > (all of you who have contributed so far) Pharo would not be what it is > today. A sexy development environment. If there were no me, someone else > would have to step up and do what I did. I am fully aware of that. Me > trying to contribute is a "thank you" of sorts to all of you. > > Small contribution with big impact. In a way it is not that small a > contribution considering the impact it can have on Pharo adoption. In > Smalltalk "a little code goes a long way". Consider this scenario, > a true story: I first downloaded my first Pharo back when 3.0 was > new. On Windows XP. I played with it a little. Got excited (sooooo > sexy!). But then came the blow. What? I can not type Ä? Is my keyboard > broken? Severed cable? No? Oh ok. It just won't let me. There goes my > contact management application. Bummer. It seems the IDE is not used by > anyone in the Czech Republic on Windows. Otherwise someone would have > noticed. Oh. Well. I don't have the skill to debug this yet. I am not > sure how to report this. Oh well let's wait until someone fixes this. And > it gave me the impression Pharo 3.0 is immature technology. This could > be happening in any country that uses Ä as part of their language > - Latvia, Lithuania, Serbia, Slovakia (Russia, Bulgaria, Croatia - > for the russian characters). A year later Pharo 4.0 came out and it > still was not fixed. Then Pharo 5.0 - same story. I have been learning > Smalltalk in small steps on Squeak and Pharo trying things from SBE > and PBE and my contact management example based on an excellent video > by Laurent Laffont. To cut a long story short only this month I have > reached the point that I was thinking maybe now I have what it takes to > fix this. And the excellent videos of the Pharo MOOC definitely played > a part too. Thanks to everyone involved. Anyway I tried to debug this > issue and it worked. So what if you were able to wave the magic wand to > make that bug go away? I have that wand. I'll see if I can jump through > the hoops of the contribution process although it might take some time. > > On a lighter note, I had a bright vision of how I could get some credit > for being able to fix this. I would find hire some really hot hostess > or two for an upcoming Pharo conference in Prague. They would have the > following on their T-shirts. One: 'Ä, Ä, Ä, Anyone?' and the other > 'Ð ,Ð, Ð, Ð, Ð, Ð, Anyone?' and 'Ask me how' on the back. :-). And > their job would be to hand out my email address to anyone interested. Or > even point to me standing in the distance. I bet they would command > some attention. I don't really want to be the one to discourage hot hostesses ;) but I think this would come across a bit false - like buying your way to fame. Your money is probably better spent on donating a few pizzas to the hacking sessions that often accompany these events. Or offer your time and effort into help organise the event (plus you end up interfacing with a lot of people.) If you a up for public speaking, be the one introducing the speakers, or get a ten minute presentation slot just to introduce yourself and give a newcomers perspective, for other newcomers in the audience to identify with and perhaps be encouraged to follow the same path. cheers -ben > > Mentoring. It would be nice to know how to find a mentor for the > contribution process, possibly beyond. > > Thanks for your attention, > Milan

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DBXTalk/Garage: GAMySQLDriver#execute: raises exception when int field is NULL
by Mark Bratcher June 14, 2016

June 14, 2016

Hello Not sure where else to post this. I have posted what looks like a bug in the GAMySQLDriver#execute: selector. Here is the bug report on tracker: https://github.com/guillep/DBXTalk/issues/8. But there is very, very little activity there or in the DBXTalk Google discussion group. Is DBXTalk/Garage still considered a supported means of interfacing to an existing database (like MySQL or PostgreSQL)? If so, is there something Iâm doing wrong as shown in the tracker post, or is there a known bug? Thanks ------- Sent from Mail for Windows 10

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Don't understand Array creation syntax
by Franklin Mike June 14, 2016

June 14, 2016

Why the first element of #( ( 1 + 2 ) . 3 ) is #(1 #+ 2) and not #'('. Thanks!!

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[Raspberry Pi] Accessing GPIO pins on Raspberry Pi?
by sergio ruiz June 14, 2016

June 14, 2016

Does anyone know if itâs possible to access the header on Raspberry Pi vi Pharo? I am mostly interested in running a 16x2 LCD from pharo at this point. Thanks! ---- peace, sergio photographer, journalist, visionary #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV http://www.Village-Buzz.com http://www.ThoseOptimizeGuys.com http://www.CodingForHire.com http://www.coffee-black.com http://www.painlessfrugality.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

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OSProcess command with german umlaut does not work
by Sabine Manaa June 13, 2016

June 13, 2016

Hi, on command line, this works, my file is copied: cp /Library/WebServer/Documents/reports/bÃ¤r.pdf /Library/WebServer/Documents/reports/test.pdf In Pharo (4+5) this does not work (file not copied, no error message) OSProcess command: 'cp /Library/WebServer/Documents/reports/bÃ¤r.pdf /Library/WebServer/Documents/reports/test-a.pdf'. This works (file is copied): OSProcess command: 'cp /Library/WebServer/Documents/reports/bar.pdf /Library/WebServer/Documents/reports/test-b.pdf'. Seems that german umlauts don't work. Is there something, I can I do, I don't want to replace the umlauts in filenames... Regards Sabine -- View this message in context: http://forum.world.st/OSProcess-command-with-german-umlaut-does-not-work-tp… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Pharo Mooc after the 19th of june
by Johan Fabry June 13, 2016

June 13, 2016

Hi all, a question about the Mooc: I have some people that may want to take it, but this will be in July probably. Now the page of the Mooc says that inscriptions and classes end on the 19th of June. Will there be a new round of inscriptions afterwards or is there a different solution for these guys? -- Does this mail seem too brief? Sorry for that, I donât mean to be rude! Please see http://emailcharter.org . Johan Fabry - http://pleiad.cl/~jfabry PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile

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Re: [Pharo-users] Pharo 5 accented chars bug/regression
by Peter UhnÃ¡k June 13, 2016

June 13, 2016

> > I thought stackoverflow.com might be a good place for that. I was > wrong. Having had my stackoverflow.com post attacked by aggressive > incompetent anonymous down voters who were interested in down voting but > possess no sense of humor or knowledge of Pharo or Smalltalk I think > I understand now that stackoverflow.com is overrated. I don't think a > site that actively encourages that kind of behavior deserves to benefit > from my fix in any way. I would need a whole bunch of sympathizers to > overturn the downvoting. I am not sure it is worth anybody's time. I understand now that mailing lists have several good qualities that > stackoverflow.com does not have: posts can not disappear. People can not > anonymously make you look bad even if they are incompetent in the subject > matter. Are you referring to the post titled "Pharo/Seaside for Windows: Cannot type Latin Ä, Ä, Ä or Russian Ð, Ð, Ð, Ð, Ð, Ð characters in Workspace/Playground or System Browser"? If so, then although it was (imho) a very nice bug report, it has no place on stackoverflow ; we have issue tracker for that https://pharo.fogbugz.com/ So my guess is that your post was downvoted because it didn't fit SO criteria for questions ( https://stackoverflow.com/help/on-topic ). Judging by your SO rep you seem quite new to the site, so you might not be familiar with how the site works (reviewing queues, what's on topic https://stackoverflow.com/help/on-topic , etc.) It is true that sometimes the questions are reviewed by people that have no knowledge of Pharo/Smalltalk, and then they will judge it on generic criteria, which sometimes results in incidents; however most of the time it seems to work rather well. So blasting SO because of a single incident, and calling people you don't know "incompetent" is certainly not the way to have a discussion, whether you are right or wrong. But I do not like places where anonymous bullying is actively encouraged. Downvoting is not bullying, it's there to help ensure that SO doesn't become garbage dumpâ¦ and there's a lot garbage incoming. I've reviewed almost thousand posts there and flagged almost half of them, and way too often the user clearly didn't even bother spending five minutes reading about the site and what's appropriate and what's not. With such constant flooding where literally every other question is garbage, I can see why people might be harsherâ¦ and not care about misflagging a small fraction of thatâ¦ in this context it's better to have a more uptight standard than to loosen it up. When you've asked/answered three questions, having one flagged is a lot and can be upsettingâ¦ it's third of all your work. If you have hundred(s) of questions you just shrug and move to the next one, because it's not worth to be upset over it. Is there anyone out there using Pharo 3, 4, 5 or 6 on Windows that would > benefit now from being able to type the characters Ä, Ä, Ä or Russian Ð, > Ð, Ð, Ð, Ð, Ð in Workspace/Playground and System Browser? > It's a bug and as such should be fixed. > I was so proud of myself. I thought I deserved some recognition. And I > still do. > I guess I would like to know how to get this fixed with my fix and get > some visibility in the process. If there is any interest. Explicitly asking for a recognition is going on a very thin ice. You see, I've myself invested a ton of time into Pharo over past two years, but I wouldn't even dream about asking for recognition, because there are people who invested hundred and thousandfold times more and yet I barely thank them myself. The latest release ( http://pharo.org/news/pharo-5.0-released ) has hundred contributorsâ¦ is it fair that the list has side-by-side people that invested maybe an hour into Pharo and next to him someone with thousands of hours? Visibility is not built by fixing a single issueâ¦ there are tens of fixes every single week, but by continuous and systematic investment. If and when people appreciate ones efforts is up to them. It certainly feels great when someone thanks you or appreciates your efforts, but it (to me) seems like a fragile ground to build your motivation upon. I contribute because I enjoy it, because I enjoy the system and I want to see it grow, because I want to learn and improve myself, and because I need the problems fixed for my workâ¦ and all of it is internal motivationâ¦ if noone thanks (which is the majority case for majority of bugs, because most people have no idea that a bug even existed or was fixed)â¦ then I don't care, because I had fun and I made the system better. I actually feel guilty that I do not contribute enough and that I merely reap the benefits of other people's work. But of course I can only speak for myself, and you may feel different about it. :) Peter On Sun, Jun 12, 2016 at 10:30 PM, Milan Vavra via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > > > ---------- Forwarded message ---------- > From: Milan Vavra <vavra_milan(a)yahoo.com> > To: pharo-users(a)lists.pharo.org > Cc: > Date: Sun, 12 Jun 2016 12:50:27 -0700 (PDT) > Subject: Re: Pharo 5 accented chars bug/regression > I have debugged the issue and figured out how to fix it. I have seen > it as an opportunity to learn Pharo debugging and I did learn a few > tricks on the way. It took me 2 full days of debugging. > > It is a simple fix that works for all the Pharo versions on Windows > that have this problem. Including Pharo 6 without Nicolai's fix applied. > And it does not break any shortcuts as far as I can tell. > > I was so proud of myself. I thought I deserved some recognition. And I > still do. It is not that someone else could not do it. I am sure that > many people would be able to do that as well. But I did take the time > to do it. And it worked. I kind of would have liked to be able to point > to it and say "I fixed that". > > > > > Don't get me wrong. I'm ok with being told that I'm ugly or stupid > if I understand what it is that is disliked. But I do not like places > where anonymous bullying is actively encouraged. Hey I even got a 'Peer > Pressure' badge for deleting my down voted post. > > So much for context. > > > I understand that Nicolai is working on a fix of his own. The preliminary > version for future Pharo 6.0 shows promise. With it, it is possible to > type all the russian characters. Even with the fix it is not possible > to type the Latin 'Ä' but I guess that can be fixed too. > > Back to business: > > Is there anyone out there using Pharo 3, 4, 5 or 6 on Windows that would > benefit now from being able to type the characters Ä, Ä, Ä or Russian Ð, > Ð, Ð, Ð, Ð, Ð in Workspace/Playground and System Browser? > > I guess I would like to know how to get this fixed with my fix and get > some visibility in the process. If there is any interest. > > > Milan > > > > > > -- > View this message in context: > http://forum.world.st/Pharo-5-accented-chars-bug-regression-tp4898863p49005… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > >

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Re: [Pharo-users] Pharo 5 accented chars bug/regression
by Nicolai Hess June 12, 2016

June 12, 2016

2016-06-12 22:30 GMT+02:00 Milan Vavra via Pharo-users < pharo-users(a)lists.pharo.org>: > > > ---------- Weitergeleitete Nachricht ---------- > From: Milan Vavra <vavra_milan(a)yahoo.com> > To: pharo-users(a)lists.pharo.org > Cc: > Date: Sun, 12 Jun 2016 12:50:27 -0700 (PDT) > Subject: Re: Pharo 5 accented chars bug/regression > I have debugged the issue and figured out how to fix it. I have seen > it as an opportunity to learn Pharo debugging and I did learn a few > tricks on the way. It took me 2 full days of debugging. > > It is a simple fix that works for all the Pharo versions on Windows > that have this problem. Including Pharo 6 without Nicolai's fix applied. > And it does not break any shortcuts as far as I can tell. > > I was so proud of myself. I thought I deserved some recognition. And I > still do. It is not that someone else could not do it. I am sure that > many people would be able to do that as well. But I did take the time > to do it. And it worked. I kind of would have liked to be able to point > to it and say "I fixed that". > > I thought stackoverflow.com might be a good place for that. I was > wrong. Having had my stackoverflow.com post attacked by aggressive > incompetent anonymous down voters who were interested in down voting but > possess no sense of humor or knowledge of Pharo or Smalltalk I think > I understand now that stackoverflow.com is overrated. I don't think a > site that actively encourages that kind of behavior deserves to benefit > from my fix in any way. I would need a whole bunch of sympathizers to > overturn the downvoting. I am not sure it is worth anybody's time. > > I understand now that mailing lists have several good qualities that > stackoverflow.com does not have: posts can not disappear. People can not > anonymously make you look bad even if they are incompetent in the subject > matter. > > Don't get me wrong. I'm ok with being told that I'm ugly or stupid > if I understand what it is that is disliked. But I do not like places > where anonymous bullying is actively encouraged. Hey I even got a 'Peer > Pressure' badge for deleting my down voted post. > > So much for context. > > > I understand that Nicolai is working on a fix of his own. The preliminary > version for future Pharo 6.0 shows promise. With it, it is possible to > type all the russian characters. Even with the fix it is not possible > to type the Latin 'Ä' but I guess that can be fixed too. > > Back to business: > > Is there anyone out there using Pharo 3, 4, 5 or 6 on Windows that would > benefit now from being able to type the characters Ä, Ä, Ä or Russian Ð, > Ð, Ð, Ð, Ð, Ð in Workspace/Playground and System Browser? > > I guess I would like to know how to get this fixed with my fix and get > some visibility in the process. If there is any interest. > > > Hi Milan, there are different ways to fix this bug. One way is to clean up the keystroke handling - that is what I am working on. If you have a fix for an intermediate solution, feel free to submit your solution. (see http://pharo.org/contribute) best nicolai > Milan > > > > > > -- > View this message in context: > http://forum.world.st/Pharo-5-accented-chars-bug-regression-tp4898863p49005… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > >

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Re: Pharo 5 accented chars bug/regression
by Milan Vavra June 12, 2016

June 12, 2016

I have debugged the issue and figured out how to fix it. I have seen it as an opportunity to learn Pharo debugging and I did learn a few tricks on the way. It took me 2 full days of debugging. It is a simple fix that works for all the Pharo versions on Windows that have this problem. Including Pharo 6 without Nicolai's fix applied. And it does not break any shortcuts as far as I can tell. I was so proud of myself. I thought I deserved some recognition. And I still do. It is not that someone else could not do it. I am sure that many people would be able to do that as well. But I did take the time to do it. And it worked. I kind of would have liked to be able to point to it and say "I fixed that". I thought stackoverflow.com might be a good place for that. I was wrong. Having had my stackoverflow.com post attacked by aggressive incompetent anonymous down voters who were interested in down voting but possess no sense of humor or knowledge of Pharo or Smalltalk I think I understand now that stackoverflow.com is overrated. I don't think a site that actively encourages that kind of behavior deserves to benefit from my fix in any way. I would need a whole bunch of sympathizers to overturn the downvoting. I am not sure it is worth anybody's time. I understand now that mailing lists have several good qualities that stackoverflow.com does not have: posts can not disappear. People can not anonymously make you look bad even if they are incompetent in the subject matter. Don't get me wrong. I'm ok with being told that I'm ugly or stupid if I understand what it is that is disliked. But I do not like places where anonymous bullying is actively encouraged. Hey I even got a 'Peer Pressure' badge for deleting my down voted post. So much for context. I understand that Nicolai is working on a fix of his own. The preliminary version for future Pharo 6.0 shows promise. With it, it is possible to type all the russian characters. Even with the fix it is not possible to type the Latin 'Ä' but I guess that can be fixed too. Back to business: Is there anyone out there using Pharo 3, 4, 5 or 6 on Windows that would benefit now from being able to type the characters Ä, Ä, Ä or Russian Ð, Ð, Ð, Ð, Ð, Ð in Workspace/Playground and System Browser? I guess I would like to know how to get this fixed with my fix and get some visibility in the process. If there is any interest. Milan -- View this message in context: http://forum.world.st/Pharo-5-accented-chars-bug-regression-tp4898863p49005… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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