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• Java dev learning Python: what concepts do I need to wrap my head around?

  - by LRE

  I've run through a few tutorials and written some small projects. I'm right in the middle of a small project now infact. All is going well enough thanks in no small part to Uncle Google (who usually points me to Stackoverflow ;-) Several times in the last few days I've found myself wondering "what am I missing?" - I feel that I'm still thinking in Java as I write in Python. This question over at StackOverflow is full of tips about what resources to read up on for learning Python, but I still feel that I'm a Java dev with a dictionary (pun unintended) to translate into Python. What I really want to do is refactor my head to be able to write Pythonic Python instead of Java disguised as Python (not that I want to loose my Java skills). So, the crux of my question is: what concepts does a Java dev really need to learn to think Pythonic? This includes anything that needs to be un-learnt. ps: I consider language syntax to not be particularly relevant to this question.

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• SEO With a Linkwheel

  You will be amazed to know that more than 68 % of internet users do not go farther than first page on search results. That means you have to be among the top page ranks to have any business online. If you are not among those listed on the first page of search results, you are missing out on most of the users searching for products, information and content on Google and other search engines. Linkwheel is a wonderful strategy for search engine optimization (SEO). If done well, your search engine rankings will skyrocket in a very short time.

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• Fonts in menu are larger than they should be under Awesome WM

  - by janjust

  I upgraded to oneiric ocelot, running awesome wm. Everything works, more or less, fine but one thing I've noticed is that now my menu fonts and my menu symbols are larger than I'd like them to be. I used to set them in font settings, but now (for one I don't even know where font settings are anymore, I tried gnome-tweak-tool) the font-settings are gone? Surely I'm missing something. My prime example is the program evince whose symbols are ginormous. Any hints how to tweak it?

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• Providing feedback on the Solaris Studio 12.4 Beta

  - by Darryl Gove

  Obviously, the point of the Solaris Studio 12.4 Beta programme was for everyone to try out the new version of the compiler and tools, and for us to gather feedback on what was working, what was broken, and what was missing. We've had lots of useful feedback - you can see some of it on the forums. But we're after more. Hence we have a Solaris Studio 12.4 Beta survey where you can tell us more about your experiences. Your comments are really helpful to us. Thanks.

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• The payment argument is nonsense

  In response to my HTML5 apps argument a few people came back to how the payment thingy is missing from my idea, and how it will (apparently) be worthless because of that. I’ve been thinking about that a lot in the past few days, and I’m increasingly of the opinion that the payment argument is nonsense.Sure, everybody who does iPhone apps, or who’s glancing cursorily at the mobile market without trying to gain in-depth knowledge, currently believes that the App Store concept is going to be a huge...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Scrollbars: A Retrospective

  - by Jason Fitzpatrick

  It’s easy to overlook the humble scrollbar, a much used but hardly thought about user interface element. This graphic compares scrollbars over the last thirty years. Some of the more modern Windows incarnations are missing but, on account of the Vista/Windows 7 scrollbar looking pretty much like a gray version of the XP one, we’ll forgive them. A full resolution version of the image is available at the link below. Scollbars Through History [via Geeks Are Sexy] How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7

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• SEO: Is there a limit to how long titles/descriptions should be?

  - by jiewmeng

  I am trying to fill up title and meta description for my Tumblr blog. The way I will do that is via the themes. For the title, it isn't too much of an issue, I can just get the title for the post although some post types do not have titles. The main question is about the description. I am thinking of using the start of the body content. For now, there is no way to limit the length of body content. I wonder if its OK to have the whole body in the description? I have contacted Tumblr support to suggest that they have a way of creating limiting text length in their template tags.

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• Should I use nodindex, follow or rel canonical?

  - by webmasters

  I have a site that lists offers, promotions from other websites. Since the offers expire rather quickly I don't save them into my database. I see no point in having a page from 2010 about 30% discount on a certain brand of shoes which isn't availabe anymore. A visitor enters my website; He clicks on the "shoes" category; http://www.mysite.com/shoes/ Here he sees 20 available promotions from different online stores. He clicks on a promotion and gets to a page like this: http://www.mysite.com/shoes/promotions/prada Questions: I use the template promotions.php and list all the promotions. /promotions/prada/ /promotions/otherbrand/ .... What I do is use "noindex, follow" for the links. Is that a good idea? Or should I use rel="canonical" for the promotion page? How do you advise me to handle this from the SEO point of view?

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• Time tracker for lxde

  - by deshmukh

  I have only recently started using lxde. And I am liking it. It is blazing fast, not-at-all resource hungry and just does what I want. The only thing I am missing is a time tracker tool. I have been using Hamster Time Tracker on gnome for quite some time. In lxde, I can still launch the application. But there are no reminders when the time limit is up, etc. The time tracker is just another window. Is there any way to get hamster working in lxde with notifications for time-up and an icon in the panel, etc.? Alternatively, is there another application like Hamster that will do all that Hamster does and WORKS in lxde?

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• Missed the Call for Papers Deadline? Don't Despair!

  - by [email protected]

  Now, You've Got a Second Chance You were skiing in the Alps. Your dog ate your paper. You were locked in a time capsule that opened March 22 (one day after the Call for Papers deadline). No matter what your reason was for missing the deadline, you can still have a say in what's covered at Oracle OpenWorld 2010 and Oracle Develop 2010. We've just brought back the Suggest a Session program. And that means you've got a second chance to suggest presentations for Oracle OpenWorld and Oracle Develop 2010 and to share your ideas, experiences, and accomplishments with Oracle customers, developers, and partners. So hang up your skis and show us what you've got. The deadline for submission is June 20. Get all the information on the Suggest a Session process, timeline, and guidelines.

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• Documenting user interfaces in a mouse-less touch UI

  - by Daniel Cazzulino

  “Old” apps rely on mouse pointing and tooltips to explain what a given button is for. Maybe there is text associated with the button, but you can only put so much text without wasting useful screen state. More so in a phone or tablet app. I’ve seen a trend in Google apps where they put an overlay on top of the app the first time it runs, to explain how the various pieces of UI work. I have seen this also on my Nexus phone, but don’t have a screenshot. I don’t recall a way to actually bring that help overlay back again, so that’s maybe some built-in gesture that’s missing. Here’s what it looks like in Gmail, the first time you use the new compose layout:   I like the approach very much, and I think it’s something that should become standard part of mobile OS, and Windows, including a standard way to bring that help up from within any app....Read full article

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• Why does Linux/Ubuntu have an unorganised install solution?

  - by Matthew

  I started using Windows 7 again to play some of my games I had been missing and I have to say I've been relieved to be reintroduced to the standard installation area "Program Files". From what I've noticed on almost every Linux distribution there is like 5 different areas where games/programs or other odds and ends end up. When you install something, I feel as though you pretty much have to guess where it installed at. Which honestly don't make any sense to me. So my question is, why does it appear as though there is no standard on Linux/Ubuntu? I'm not saying it's a bad thing. I just want to understand the reasons behind it.

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• Rendering transparent textures in directX

  - by Vibhore Tanwer

  I am working with a directX application with WPF, I am facing a problem with videos and images that contains transparent pixels, I have to draw a color in background an then a video/image over it. What I expect is background color should be visible while playing video only non transparent pixels should be visible but what I get is a black background behind the video. I am using following settings on device to achieve alpha blending : device.RenderState.SourceBlend = Blend.SourceAlpha; device.RenderState.DestinationBlend = Blend.InvSourceAlpha; device.RenderState.AlphaBlendEnable = true; What am I missing here? What is the best approach to handle transparent videos? Any help will be of great value to me.

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• Why Wikipedia doesn't appear as a referral in Google Analytics' Traffic sources?

  - by Rober

  One of my clients has a website and got not spammy backlinks in a Wikipedia article. When I test it for SEO purposes with Google Analytics (from different IPs), apparently there is no referral information. On the Real-Time view my test visit is visible but with There is no data for this view in the referrals subview. And this visits appear as (direct) / (none) on the Traffic sources view. Wikipedia is not hiding in any way its links origin, since it is shown in the server visits log. Is Google ignoring Wikipedia as a referral? Am I missing anything else? Update: Now it works, several days after the link was active. Maybe something is detecting for how long the link was there so that it doesn't work just from the beggining, as a security measure? Many visits are actually not recorded.

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• Keep only essential packages

  - by Stijn

  In an attempt to learn more about Ubuntu and its packages, I want to remove all non-essential packages, so I can install what I need, when I need them and know what they do. I'm using the commands dpkg --clear-selections and apt-get dselect-upgrade for this. I also slightly modify the selection by setting apt libstdc++6 (due to apt) install-info (due to grep) to install again (somehow dpkg thinks they are not essential, but apt-get complains). Is this ok, or is this bad? If it's ok, what do I do with the large list of packages with "deinstall" status in dpkg? An additional note, I'm doing this on a VPS template so I have no control over the initially installed packages.

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• Problem installing LibreOffice; please help!

  - by EmmyS

  I followed the instructions for installing LibreOffice found here, which are basically the same instructions found all over askubuntu and the web in general. I followed the instructions (including removing OO first) for gnome; all that is in my Applications menu now is LibreOffice (OO used to have OpenOffice Spreadsheet, OpenOffice Presentation, etc.) When I open LibreOffice, I get the splash screen/menu, but all of the choices for creating new docs are greyed out. It also will not open any office/type files (no errors; they just don't open.) The terminal commands indicated that installation was successful, but obviously something is missing. I'm guessing I can just reinstall OO from the software center, but I'd really like to give LibreOffice a try, given the lack of ongoing development on OO. Can anyone help me out?

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• joomla 2.5 : list links to articles in 2 columns

  - by semyon

  I have a Joomla! 2.5 website, and I have to add a lightbox popup that will contain links to all articles from a specific category(+subs). If anyone can suggest all-in-one solution, that will be great! But generally I'm asking, how to list links to all articles from a specific category and its sub-categories in two/three columns? I know I can set Category blog View to output only article links, without full/introtext, but in this case links will all be in one column. I need at least two. A possibility of grouping article links by subcategory would be great as well (but this is the thing I can live without). How can this be done? I'm looking for: a standard way of configuring this Template override (I'm using T3 framework) Custom extension any other method ...

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• Tales from the Coal Face - Speeding up a C# compilation

  - by TATWORTH

  At one place, I was faced with a C# solution which when XML documentation was turned on, the compilation time increased from 45 seconds to over 8 minutes. This slowdown was unacceptable, however some digging revealed an excellent suggestion by Eric Woodruff at http://social.msdn.microsoft.com/Forums/en-US/devdocs/thread/9bbad4cc-e229-49da-a6f7-3cdf470ac53a/ where he suggested "just suppress the warning by entering it's number (1591 for C#) in the Suppress Warnings field on the Build tab of the project properties". I followed Eric's suggestion and the compilation time went back down to 45 seconds. Now that CS1591 is suppressed how was missing documentation to be found? All that was necessary was to run StyleCop!

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• Package dependencies cannot be resloved?

  - by Hayden Win

  i was in the ubuntu software center, and when i try to install something like OpenJDK, i get an error saying: Package dependencies cannot be resolved This error could be caused by required additional software packages which are missing or not installable. Furthermore there could be a conflict between software packages which are not allowed to be installed at the same time. When i click on "Details" it shows this: The following packages have unmet dependencies: openjdk-6-jre: Depends: openjdk-6-jre-headless (>= 6b24-1.11.1-4ubuntu2) but 6b24-1.11.1-4ubuntu2 is to be installed Depends: libjpeg8 (>= 8c) but 8c-2ubuntu7 is to be installed Depends: libpulse0 (>= 1:0.99.1) but 1:1.1-0ubuntu15.2 is to be installed How do i fix this, and what's caused this problem in the first place?

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• Live CD won't start with UEFI

  - by skytreader

  I'm trying to dual boot my Windows 8 machine with Ubuntu 12.04 but I cannot even get to the Live CD under UEFI. I've already set my UEFI boot loader to load from the DVD drive before anything else but it keeps on loading Windows 8 first thing. I've checked that the Ubuntu installer I am using is working by setting the BIOS to legacy boot; under this setting, I can get to the Live CD but it cannot detect Windows 8---something I do not want to happen. Just for the record, my boot order is as follows: ATAPI CDROM: HL-DL-ST DVDRAM GT51N USB CDROM: USB FDD USB HDD HDD: TOSHIBA [SERIAL NUMBER] Network Boot-IPV4: Network Boot-IPV6 Windows Boot Manager Has anyone ran into the same problems as me for UEFI? What am I missing here?

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• Am I bored with programming? [closed]

  - by user1167074

  I have started programming 2 years back and I have learnt web programming while working for big corporate companies. I was very passionate and I even did couple of side projects which were well appreciated by my friends and colleagues. But for the past 2 months I am not doing anything really interesting with programming, even if I get good ideas I am not feeling like coding, sub consciously I am feeling like "So What?" if I do this project. I would like to know from the more experienced programmers if this is just a phase or am I really missing something? Thanks

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• Converting mp4 to mp3

  - by aki

  I have a video I need to convert to mp3 (from the command line - not GUI) video.mp4 I tried: ffmpeg -i -b 192 video.mp4 video.mp3 with no success. I get the following error: WARNING: library configuration mismatch Seems stream 0 codec frame rate differs from container frame rate: 59.83 (29917/500) -> 59.75 (239/4) WARNING: The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s Encoder (codec id 86017) not found for output stream #0.0 so I tried lame: lame -h -b 192 video.mp4 video.mp3 I get: Warning: unsupported audio format Am I missing something?

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• Should all, none, or some overriden methods call Super?

  - by JoJo

  When designing a class, how do you decide when all overridden methods should call super or when none of the overridden methods should call super? Also, is it considered bad practice if your code logic requires a mixture of supered and non-supered methods like the Javascript example below? ChildClass = new Class.create(ParentClass, { /** * @Override */ initialize: function($super) { $super(); this.foo = 99; }, /** * @Override */ methodOne: function($super) { $super(); this.foo++; }, /** * @Override */ methodTwo: function($super) { this.foo--; } }); After delving into the iPhone and Android SDKs, I noticed that super must be called on every overridden method, or else the program will crash because something wouldn't get initialized. When deriving from a template/delegate, none of the methods are supered (obviously). So what exactly are these "je ne sais quoi" qualities that determine whether a all, none, or some overriden methods should call super?

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• Forward to other domain with CNAME

  - by xybrek

  In my GoDaddy DNS manager, I made some A Record that points to *.mirror for my domain Now when I access URL 123.mirror.mydomain.com from the browser I can see that my app is loaded, and its all OK. My problem now is when doing a CNAME point to the URL above on another domain like this: Accessing 123.otherdomain.com which I expect to "forward to" 123.mirror.mydomain.com I only get this 404 error: The IP 173.194.71.121 is actually ghs.googlehosted.com What I am missing here? Why 123.otherdomain.com which points to 123.mirror.mydomain.com cannot open that page and I think google is handing the web page request?

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• Severity and relation to occurence - priority?

  - by user970696

  I have been browsing through some webpages related to testing and found one dealing with the metrics of testing. It says: The severity level of a defect indicates the potential business impact for the end user (business impact = effect on the end user x frequency of occurrence). I do not think think this is correct or what am I missing? Usually it is the priority which is the result of such a calculation (severe bug that occurs rarely is still severe but does not have to be fixed immediately). Also from this description, what is the difference between the effect on the end user and business impact?

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