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• Python as your main language. Possible?

  - by Deinumite

  I am currently attending college and the languages that I will 'know' by graduation are C++ and Java. That being said, i am also in the process of teaching myself Python. I know that every programming language has its own pros and cons, but would it be possible to become a python developer out of school? I always have more 'fun' programming in Python than i do in C++ or Java, and I am also in love with Pythons documentation. I know C++ will always be on top in terms of speed, but what would be the benefit of memorizing every javadoc against focusing on Python instead? are there good jobs to be had with Python? edit: also, would it be beneficial for me to look at C# as well? Microsoft is really throwing their support at it so that could be a decent career path as well.

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• Is there a global inbox for android?

  - by Loony2nz

  I'm a Blackberry fan and I have been aching to get a phone with a better UI (and not the jesusPhone). I was looking at the Android platform and find it quite fun to play with. However, one of the crucial elements of my BB that I love to death is the global inbox of all my email accounts. (not to mention the BB messenger, but I can live without that). Is there an addon or does the android have this feature natively? I played with my friend's Verizon Droid, and she couldn't tell me. Thanks!

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• Writing an AI for a turn-based board game

  - by Cyril

  Hi, i'm currently programming a board game (8x8) in which I need to develop an AI. I have read a lot of articles about AI in board games, minmax with or without alphabeta pruning, but I don't really know how to implements this, I don't know where to start... About my game, this is a turn-based game, each player has pieces on the board, they have to pick one and choose in moving this piece (1 or 2 cells max) or clone the piece (1 cell max). At the moment, I have a really stupid AI which choose a random piece then choose a random move to play... Could you please give me some clues, on how to implement this functionality ? Best regards

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• [PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute query]

  - by doniyor

  i need help. i am trying to select from database thru sql statement in play framework, but it gives me error, i cannot figure out where the clue is. here is the code: @Transactional public static Users findByUsernameAndPassword(String username, String password){ String hash = DigestUtils.md5Hex(password); Query q = JPA.em().createNativeQuery("select * from USERS where" + "USERNAME=? and PASSWORD=?").setParameter(1, username).setParameter(2, password); List<Users> users = q.getResultList(); if(users.isEmpty()){ return null; } else{ return users.get(0); here is the eror message: [PersistenceException: org.hibernate.exception.SQLGrammarException: could not execute query] can someone help me please! any help i would appreciate! thanks

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• iPhone: InterfaceBuilder nibs disconnected from my project

  - by John Leonard

  Since upgrading to XCode 3.2, InterfaceBuilder doesn't play nice. All of my image links are broken in IB but they'll show fine when I compile. When I go to the combo box to select an image for my UIImageView, it doesn't have the image files I've added to my app. I also can't create a new .nib and associate it with a class I've written. Like images, my custom viewcontrollers aren't available to pick from. I'm going to try a reinstall but I was curious if anyone's dealt with this?

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• If a command line program is unsure of stdout's encoding, what encoding should it output?

  - by mackstann

  I have a command line program written in Python, and when I pipe it through another program on the command line, sys.stdout.encoding is None. This makes sense, I suppose -- the output could be another program, or a file you're redirecting it into, or whatever, and it doesn't know what encoding is desired. But neither do I! This program will be used by many different people (humor me) in different ways. Should I play it safe and output only ascii (replacing non-ascii chars with question marks)? Or should I output UTF-8, since it's so widespread these days?

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• I built my rails app with sqlite and without specifying any db field sizes, Is my app now foobared for production?

  - by Tim Santeford

  I've been following a lot of good tutorials on building rails apps but I seem to be missing the whole specifying and validating db field sizes part. I love not needing to have to think about it when roughing out an app (I would have never done this with a PHP or ASP.net app). However, now that I'm ready to go to production, I think I might have done myself a disservice by not specifying field sizes as I went. My production db will be MySQL. What is the best practice here? Do I need to go through all of my migration files and specify sizes, update all the models with validation, and update all my form partial views with input max widths? or am I missing a critical step in my development process?

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• requireJS : How to structure Javascript for an entire site?

  - by pagewil

  I have 3000+ lines of javascript that I need to get into a sensible/maintainable structure. I have chosen to use requireJS as it has been recommend to me by a few people. I have a bunch of variables that are used throughout the application and need to be available everywhere. I also have a bunch of functions that need to be available everywhere. Apart from these two dependencies most of the code can be divided off into their own modules. I am having trouble understanding how to manage my main variables so that if one module of code makes changes to the variables the rest of the JS modules will see that change. I think I need to see a few examples that demonstrate how requireJS is intended to work on a larger scale that the examples in the documentation. If anyone is an experienced requireJS user I would love the hear your tips!

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• Annotation based data structure visualization - are there similar tools out there?

  - by Helper Method

  For a project at university I plan to build an annotation based tool to visualize/play around with data structures. Here's my idea: Students which want to try out their self-written data structures need to: mark the type of their data structures using some sort of marker annotation e.g. @List public class MyList { ... } so that I know how to represent the data structure need to provide an iterator so that I can retrieve the elements in the right order need to annotate methods for insertion and removal, e.g. @add public boolean insert(E e) { ... } so that I can "bind" that method to some button. Do similar applications exist? I googled a little bit around but didn't find anything like that.

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• C#, working with files, "Unauthorized Access"?

  - by Rob

  Hi, I'm learning about opening and saving files with C# and it seems that vista won't let my program save to a file on the root of C:\ , unless I run it in administrator mode. Any ideas how to allow my program to play around with whatever files it wants? Thanks! string name; private void button2_Click(object sender, EventArgs e) ///// OPEN ///// { if (openFileDialog1.ShowDialog() == DialogResult.OK) { name = openFileDialog1.FileName; textBox1.Clear(); textBox1.Text = File.ReadAllText(name); textBox2.Text = name; } } private void button1_Click(object sender, EventArgs e) ///// SAVE ///// { File.WriteAllText(name, textBox1.Text); }

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• Is there an off the shelf CMS that can be used as a back end for smartphone travel guide apps?

  - by eamonncarey

  I'm wondering if there's an off the shelf CMS available that is similar to something like Mobile Roadie - ie: it will allow you to create multiple versions of one application? I'm looking to develop some mobile travel guides for iPhone/Android/Blackberry etc, and rather than get a CMS built, I'd like to see if there's something out there is similar to Wordpress in that it will allow us to input text, images, Google Maps details, phone numbers, email addresses and potentially some audio/video content. If anyone knows of anything, I'd love to hear about it. Also, if you have any ideas regarding pricing, that would be extremely helpful! Thanks in advance for your assistance.

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• Web UI prototyping tools

  - by AlexKelos

  Can anyone recomend me a simple web UI prototyping tool, so I could quicky prototype the look of a my web site. I have tried to use MS Visio for this, but found it very "user un-friendly". What I really need is to be able quicky sketch the layout of the page, put some links, images and buttons on in, play a little bit with a colors (CSS), and it would be great it this tool could support navigation between the pages - but it is not essential. I would rather consider a low-cost or an open-source solution, since I am not a web designer and not going to use that tool on a daily basis.

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• How to check if people liked my Facebook FanPage

  - by user2372419

  There are many questions and answers about this. But nowadays Facebook changes their Privacy. Any Application that request for user_likes permission must be review by Facebook before using. I've tried many times to explain to Facebook review team about my app, but they did not accept, because my application (a web game using HTML5 and JavaScript) require people like my fan page before play. So my question is: Is there any to bypass Facebook privacy? I have a Like Box on the same page as the game screen (where i need to check Like), so any solution (like: analyze DOM elements, capture screen can pass through image recognition) will fine.

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• handing data returned from jquery get request

  - by ian

  I have a simple jquery script as follows: $('a').click(function() { //get the id of the song we want to play var song_id = $(this).attr("id"); //do a get request to get the information about the song $.get("http://www.site.com/v4/ajax/get_song_info.php", { id: song_id, }, function(data) { alert("Data Loaded: " + data); }); //alert( song_id ); }); I have gotten it to work and it returns several bits of data 'artist' 'title' 'song duration' and so on. How do I process my 'data' so I can then update my page with each bit. In this case I want to set a series of '' to hold each of the values returned. Thanks.

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• jQuery Swap Image on Click and if/else

  - by jrutter

  Im stuck, Im setting a variable when someone clicks, then testing with if to see if the variable exists and doing something else. Its a simple script which Im probably overthinking, would love someone's thoughts. $('.view-alternatives-btn').live('click', function() { //$("#nc-alternate-wines").scrollTo(); //$('.nc-remove').toggle(); var showBtn = null; if (showBtn == null) { $('.view-alternatives-btn img').attr("src","../images/wsj_hide_alternatives_btn.gif"); $('#nc-alternate-wines').show(); showBtn = 1; console.log(showBtn); } else if (showBtn == 1) { $('.view-alternatives-btn img').attr("src","../images/wsj_view_alternatives_btn.gif"); $('#nc-alternate-wines').hide(); console.log("this " + showBtn); } return false; });

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• Audio Player Royalty Free Music (dynamic audios )?

  - by Surya sasidhar

  hi, I am using Royalty Free Music player for playing the audio. ya it is playing perfect but i need to play it dynamically, i mean the audio will come from database how can i write the code for that. This is the royalty free music code..... var so = new SWFObject("playerSingle.swf", "mymovie", "192", "67", "7", "#FFFFFF"); so.addVariable("autoPlay", "yes"); so.addVariable("soundPath","song.mp3"); so.addVariable("overColor","#000044") so.addVariable("playerSkin","1") so.write("flashPlayer"); this above code is written in source code with in the script tag, then how can i write for dynamic audios please help me thanking you and this is the link for that site.. http://www.premiumbeat.com/flash_resources/free_flash_music_player/single_track_flash_mp3_player.php

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• Localizing a JSF 1.2 application with UTF-8 resources

  - by Filini

  (WARNING: this is my first java application, coming from .NET, so don't bash me if I write too much garbage) I'm developing a simple JSF 1.2 web application which should support Russian, Chinese, and other languages outside ISO 8859-1, which is automatically used in Properties.load(). Is there a way to use the Properties loaded from XML files, with Properties.loadFromXml(), inside JSF, without writing too much code? I know there are alternative ways to do so (writing my own loader, escaping the characters...), but I'd really love to find a simple solution, and I don't see it in all the forums I checked. Thanks in advance for any help

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• How can I lock the cursor to the inside of a window on Linux?

  - by ZorbaTHut

  I'm trying to put together a game for Linux which involves a lot of fast action and flinging around of the mouse cursor. If the user wants to play in windowed mode, I'd quite like to lock the cursor to the inside of the window to avoid accidentally changing programs in the heat of battle (obviously this will cancel itself if the user changes programs or hits escape for the pause menu.) On Windows, this can be accomplished easily with ClipCursor(). I can't find an equivalent on Linux. Is there one? I plan to do this in pure X code, but obviously if anyone knows of a way to do this in any Linux windowing library then I can just read the source code and figure out how to duplicate it in X.

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• Best way in Python to determine all possible intersections in a matrix?

  - by ssweens

  So if I have a matrix (list of lists) of unique words as my column headings, document ids as my row headings, and a 0 or 1 as the values if the word exists in that particular document. What I'd like to know is how to determine all the possible combinations of words and documents where more than one word is in common with more than one document. So something like: [[Docid_3, Docid_5], ['word1', 'word17', 'word23']], [[Docid_3, Docid_9, Docid_334], ['word2', 'word7', 'word23', 'word68', 'word982']], and so on for each possible combination. Would love a solution that provides the complete set of combinations and one that yields only the combinations that are not a subset of another, so from the example, not [[Docid_3, Docid_5], ['word1', 'word17']] since it's a complete subset of the first example. I feel like there is an elegant solution that just isn't coming to mind and the beer isn't helping. Thanks.

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• 'Caching' a large table in ASP.NET

  - by TheNewGuy

  I understand that each page refresh, especially in 'AjaxLand', causes my back-end/code-behind class to be called from scratch... This is a problem because my class (which is a member object in System.Web.UI.Page) contains A LOT of data that it sources from a database. So now every page refresh in AjaxLand is causing me to making large backend DB calls, rather than just to reuse a class object from memory. Any fix for this? Is this where session variables come into play? Are session variables the only option I have to retain an object in memory that is linked to a single-user and a single-session instance?

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• VSS Analyze - Access to file [filename] is denied

  - by AJ

  Our VSS database appears to be horribly out of shape. I've been trying to archive and run "analyze" and keep getting "Access to file [filename] is denied. The file may be read-only, may be in use, or you may not have permission to write to the file. Correct this problem and run analyze again." No one is logged into SourceSafe (including myself) and I'm running the analyze utility from the VS command prompt as follows: analyze -v -f -bbackuppath databasepath I get similar errors if I try and create project archives from the ssadmin tool. The database is on a network share, and we're running VSS 2005 v8.0.50727.42. I'd love to be able to do this, as it would be a first step in a move away from VSS. Thanks in advance. More Info Every time I run analyze, the file that spawns the access denied message changes. It's almost as if running analyze unlocks that file so that the next time I get through to the next one.

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• Where should I report mistakes in Android documentation?

  - by Nick

  Hi all, This is my first post ever -- I love the Android SDK (been at it for a week), but I did notice a small typo in the official documentation that needs correcting. Not sure if this is where I post it, but on this page: http://developer.android.com/reference/android/os/CountDownTimer.html within the example source code, the source says "CountdownTimer" on line one when it should say "CountDownTimer" (notice the capitalization of the letter "D"). An easy fix for one with programming experience, but the code as written will not compile, which could be confusing for someone using this code for the first time. Is this where documentation bugs are submitted, and if not, where should I go to request the fix? Thanks all!

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• select GUI on windows (wxPy vs pyQt)

  - by Golovko

  Hello! We are plan to create an application for monitoring and configuring our service (which is running on remote server). After long time discuss, we decide for python as pl for our app, because we love and know python (better, than english, really). but we don't know, what GUI toolkit preffered for our aims. We need fast (for development and running) app, which users are admins, mainteners and account managers. There is two GUI toolkit for python, which we know: wxPython and pyQT. Anybody have arguments pro et contra candidat? And maybe peoples know commercial applications, running in this products (only python version of toolkits)? Links are desirable. Thanks, and excuse my english.

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• Ensuring uniqueness on a varchar greater than 255 in MYSQL/InnoDB

  - by Vijay Boyapati

  I have a table which contains HTML entries for news pages. When I initially designed it I used URL as the primary key. I've learned the error of my ways because left-joining is super slow. So I want to redesign the table with an integer (id) primary key, but still keep the rows unique based on the URL. The problem is that I've found URLs longer than 255 characters, and MySQL isn't letting my create a key on the URL. I'm using an InnoDB/UTF8 table. From what I understand it's using multiple bytes per character with a limit of 766 bytes for the key (in InnoDB). I would really love suggestions on an elegant way of keeping the rows unique based on URL, while using an integer primary key. Thanks!

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• Best way to have unique key over 500M varchar(255) records in mysql/innodb?

  - by taw

  I have url column with unique key over it - but its performance on updates is absolutely atrocious. I suspect that's because the index doesn't all fit in memory. So I was thinking, how about adding a column of md5(url) with 16 bytes of binary data and unique-keying that instead. What would be the best datatype for that? I'd love to be able to just see 32-character hex hash, while mysql would convert it to/from 16 binary bytes and index that, as programs using the database might have some troubles with arbitrary binary data that I'd rather avoid if possible (also I'm a bit afraid that mysql might get some strange ideas about character sets and for example overalocating storage for that by 3:1 because it thinks it might need utf8, how do I avoid that for cure?).

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