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• Repository pattern - Switch out the database and switch in XML files

  - by glasto red

  Repository pattern - Switch out the database and switch in XML files. Hello I have an asp.net MVC 2.0 project and I have followed the Repository pattern. Periodically, I am losing access to the database server so I want to have another mechanism in place (XML files) to continue developing. It is not possible to have a local version of the db unfortunately! I thought this would be relatively easy using the Repository pattern, to switch out the db repositories and switch in XML versions. However, I am having real trouble coming up with a solution. I have tried LinqToXML but then ran into problems trying to return a List of News items as the LinqToXML ToList returns Generic.List Should I be mapping the XElement list over to the News list by hand? It just seems a bit clunky compared to LinqToSQL attributes on the News class and then simply doing a Table.....ToList(); Any direction would be appreciated. Thanks

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• AjaxSubmit File Upload - Trying to get response $(document).ready() to fire

  - by ncyankee

  I'm using the jquery form plugin (http://malsup.com/jquery/form/) to upload a file via ajax which is processed in the background. The upload is working correctly, and I am using ASP.Net MVC to return a partial view which contains a $(document).ready call to setup a 'timer' to check on the status of the upload file's processing status. When I return the partial view which contains a script block wit ha $(document).ready call, it is never fired, therefore the 'timer' to check for the status of the upload is never started. When I do this via a regular $.post call (without upload) the function fires correctly after the html is loaded into the DOM. Is there anything else I need to do when calling the ajaxSubmit function to get this to fire? Just a sample bit of code: $('form').live('submit', function () { $(this).ajaxSubmit({ success: function (data) { $('#statusDiv').html(data); } }); return false; });

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• CakePHP with AJAX loaded pages

  - by Jacques Wolfghang

  Hi there. I am trying to create a website in which all interaction takes place on a single page which has its main content filled via AJAX. The site is effectively a template with a central interaction area. Users can click links which results in an AJAX request to fetch a new page to display in the interaction area. In this way, the page never refreshes, instead it has its content fetched and displayed via AJAX. I have found that the CakePHP framework has many useful features that could work with this project, however, I do not no if the Cake's MVC architecture would work with my single page architecture. So, what I really want to know is if I can use CakePHP features and functions on a website of this type, and also if anyone could give me any helpful tips on how I would go about implementing it. I am sorry if this is rambling or vague, english is not my mother tongue so I have trouble expressing what I have to say clearly. Thank you for your time.

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• Python web devlopment framework for python 3.1 user

  - by iama

  I have been learning python for some time now. While starting this "learning python" endeavor I decided to learn the latest and greatest 3.1 version of python. I regret this decision now because I wanted to try my hands on some of the python web development frameworks & it looks like many of them does not support 3.1 yet & it looks like it might take them years to support the new version of Python especially Django and TurboGears. This is really disappointing. Therefore, SO users, do you have any recommendation for a web framework for me that runs on 3.1 and supports some of the modern (I guess I will never learn ;-)) web framework features like MVC/ORM/URL Routing/Caching etc. Many thanks for your response.

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• I have a error building a .vdproj on msbuild with nant

  - by Luís Custódio

  I'm getting used to using nant for build releases. But I have started to use asp.net MVC, and i choice make the setup for installation with a .vdproj . But, when I call the: < exec program="${dotnet.dir}/msbuild.exe" commandline='"./Wum.sln" /v:q /nologo /p:Configuration=Release' / in nant, my result is: [exec] D:\My Documents\Visual Studio 2008\Projects\Wum\Wum.sln : warning MS B4078: The project file "Wum.Setup\Wum.Setup.vdproj" is not supported by MSBuild and cannot be built. Someone have some clue, or a solution? If I use the devenv, I'll have a problem? Thanks in advance.

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• Best Practices - Data Annotations vs OnChanging in Entity Framework 4

  - by jptacek

  I was wondering what the general recommendation is for Entity Framework in terms of data validation. I am relatively new to EF, but it appears there are two main approaches to data validation. The first is to create a partial class for the model, and then perform data validations and update a rule violation collection of some sort. This is outlined at http://msdn.microsoft.com/en-us/library/cc716747.aspx The other is to use data annotations and then have the annotations perform data validation. Scott Guthrie explains this on his blog at http://weblogs.asp.net/scottgu/archive/2010/01/15/asp-net-mvc-2-model-validation.aspx. I was wondering what the benefits are of one over the other. It seems the data annotations would be the preferred mechanism, especially as you move to RIA Services, but I want to ensure I am not missing something. Of course, nothing precludes using both of them together. Thanks John

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• Open Visual Web Developer Express file in Visual Studio Professional

  - by a_m0d

  I started working on an Asp.net MVC website using Visual Web Developer Express 2008 a while ago. Just recently, I managed to get my hands on a copy of Visual Studio 2008 Professional (through DreamSpark). I installed the Service Pack, and also the MVC2 files for Visual Studio. However, now I can't open my project anymore. When I try to open the solution in Visual Studio, it tells me that the project type is not supported. Does this mean that I have to resort to using VWD Express again? Note: I installed MVC2 through the Web Platform Installer, and it says that it installed successfully, but yet when I restart the WPI, the box next to MVC2 isn't checked; if I check it and click "Install", it finishes the install process instantly and tells me that it was successful.

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• Aaron Hillegass Chapter 18 Challenge Question

  - by jasonbogd

  I am working through Aaron Hillegass' Cocoa Programming for Mac OS X and am doing the challenge for Chapter 18. Basically, the challenge is to write an app that can draw ovals using your mouse, and then additionally, add saving/loading and undo support. I'm trying to think of a good class design for this app that follows MVC. Here's what I had in mind: Have a NSView-subclass that represents an oval (say JBOval) that I can use to easily draw an oval. Have a main view (JBDrawingView) that holds JBOvals and draws them. The thing is that I wasn't sure how to add archiving. Should I archive each JBOval? I think this would work, but archiving an NSView doesn't seem very efficient. Any ideas on a better class design? Thanks.

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• django app using amazon aws s3 storage in stead of DB?

  - by farble1670

  new to python here so bear with me ... i'm looking at django for a rapid prototype to a photo sharing app with an amazon aws s3 storage back end. however, as far as i can tell, django is tailored toward the typical database MVC type of pattern. is there a way to for example provide a custom django model implementation that talks to s3 in stead of a DB? a custom DB engine? would either of these be practical, or am i looking in the wrong direction? thanks.

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• Help configuring MSpec

  - by CurlyFro

  rig: win7 64bit, vs2010, mvc v2, TestDriven.Net 3.0, Reshaper 5.0, MSpec 0.3 i recently started a new project and want to use mspec. (1) copied Machine.Specifications.ReSharperRunner.5.0.dll and Machine.Specifications.dll to JetBrains\ReSharper\5.0\Bin\Plugins\Machine.Specifications (2) copied Machine.Specifications.TDNetRunner.dll to TestDriven.NET 3\Machine.Specifications when i try to run the test i get this error: System.IO.FileNotFoundException: Could not load file or assembly 'Machine.Specifications i don't know where this error is coming from. vs2010 menu - ReSharper -Plugins shows the MSpec plugin. vs2010 menu -ReSharper - Options - Tools - Unit Testing also shows the MSpec unit testing provider but it doesn't show any details when i click on it as does MSTest and nUnit. i found this: http://marcinobel.com/index.php/mspec-bdd-installer/ which didn't work. i also tried this: http://eduncan911.com/blog/registering-mspec-runners-for-testdriven-net-on-windows-x64.aspx which also didn't work. now i fear i screwed my registry. any guidance?

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• Ninject Contextual Binding: Where do I get Ninject.Conditions.dll

  - by Twisted

  I've read about ninjects contextual binding here : http://ninject.codeplex.com/wikipage?title=Contextual%20Binding and am trying to get it working in my project. The docs state that I need to add a reference to Ninject.Conditions.Dll which I do not have. Does anybody know where to get this? I've tried over at github : https://github.com/ninject/ninject I used the download link to get the 2.0.1.0 sources and managed to build them but no dll. I found a similar question here : Where can I find ninject.web.mvc.dll? and an answer with a link to a build server. I followed the link and I get a login request for team city. I don't have an account.

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• linq query - The method or operation is not implemented.

  - by Dejan.S

  I'm doing the Rob Conery mvc storefront and at one place I'm suppose to get categories but I get an error with this linq query and I can not get why. It's exactly the same as his. var culturedName = from ct in ReadOnlyContext.CategoryCultureDetails where ct.Culture.LanguageCode == System.Globalization.CultureInfo.CurrentUICulture.TwoLetterISOLanguageName select new { ct.CategoryName, ct.CategoryId }; return from c in ReadOnlyContext.Categories join cn in culturedName on c.CategoryId equals cn.CategoryId select new Core.Model.Category { Id = c.CategoryId, Name = cn.CategoryName, ParentId = c.ParentId ?? 0, Products = new LazyList<Core.Model.Product>(from p in GetProducts() join cp in ReadOnlyContext.Categories_Products on p.Id equals cp.ProductId where cp.CategoryId == c.CategoryId select p) }; its the return query that mess things up. I have checked and the culturename actually gets data from the database. Appricate your help

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• Searching for a Kohana Beginner's Tutorial for PHP

  - by Andreas Grech

  I am going to try to build a PHP website using a framework for the first time, and after some research here and there, I've decided to try to use Kohana I downloaded the source from their website, and ran the downloaded stuff on my web server, and was then greeted with a 'Welcome to Kohana!' page, and nothing more... I've tried to find some beginner tutorials on the web as regard this particular framework, but to my surprise, came up with almost nothing (only this one, but it's not a great deal of help) I am not new to PHP and neither am I new to the MVC concept, but I am very new to PHP Frameworks...so can anyone point me to a Kohana tutorial somewhere on the web that will help me get started in building my website using this framework, from scratch ? P.S. As I said, I want a beginners tutorial as regarding this case. [UPDATE] I am currently reading the Official Guide...we'll see how that goes.

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• Maven struts2 modular archetype failing to generate !

  - by Xinus

  I am trying to generate struts 2 modular archetype using maven but always getting error as archetype not present here is a full output : C:\Users\Administrator>mvn archetype:generate [INFO] Scanning for projects... [INFO] Searching repository for plugin with prefix: 'archetype'. [INFO] ------------------------------------------------------------------------ [INFO] Building Maven Default Project [INFO] task-segment: [archetype:generate] (aggregator-style) [INFO] ------------------------------------------------------------------------ [INFO] Preparing archetype:generate [INFO] No goals needed for project - skipping [INFO] Setting property: classpath.resource.loader.class => 'org.codehaus.plexus .velocity.ContextClassLoaderResourceLoader'. [INFO] Setting property: velocimacro.messages.on => 'false'. [INFO] Setting property: resource.loader => 'classpath'. [INFO] Setting property: resource.manager.logwhenfound => 'false'. [INFO] [archetype:generate {execution: default-cli}] [INFO] Generating project in Interactive mode [INFO] No archetype defined. Using maven-archetype-quickstart (org.apache.maven. archetypes:maven-archetype-quickstart:1.0) Choose archetype: 1: internal -> appfuse-basic-jsf (AppFuse archetype for creating a web applicati on with Hibernate, Spring and JSF) 2: internal -> appfuse-basic-spring (AppFuse archetype for creating a web applic ation with Hibernate, Spring and Spring MVC) 3: internal -> appfuse-basic-struts (AppFuse archetype for creating a web applic ation with Hibernate, Spring and Struts 2) 4: internal -> appfuse-basic-tapestry (AppFuse archetype for creating a web appl ication with Hibernate, Spring and Tapestry 4) 5: internal -> appfuse-core (AppFuse archetype for creating a jar application wi th Hibernate and Spring and XFire) 6: internal -> appfuse-modular-jsf (AppFuse archetype for creating a modular app lication with Hibernate, Spring and JSF) 7: internal -> appfuse-modular-spring (AppFuse archetype for creating a modular application with Hibernate, Spring and Spring MVC) 8: internal -> appfuse-modular-struts (AppFuse archetype for creating a modular application with Hibernate, Spring and Struts 2) 9: internal -> appfuse-modular-tapestry (AppFuse archetype for creating a modula r application with Hibernate, Spring and Tapestry 4) 10: internal -> maven-archetype-j2ee-simple (A simple J2EE Java application) 11: internal -> maven-archetype-marmalade-mojo (A Maven plugin development proje ct using marmalade) 12: internal -> maven-archetype-mojo (A Maven Java plugin development project) 13: internal -> maven-archetype-portlet (A simple portlet application) 14: internal -> maven-archetype-profiles () 15: internal -> maven-archetype-quickstart () 16: internal -> maven-archetype-site-simple (A simple site generation project) 17: internal -> maven-archetype-site (A more complex site project) 18: internal -> maven-archetype-webapp (A simple Java web application) 19: internal -> jini-service-archetype (Archetype for Jini service project creat ion) 20: internal -> softeu-archetype-seam (JSF+Facelets+Seam Archetype) 21: internal -> softeu-archetype-seam-simple (JSF+Facelets+Seam (no persistence) Archetype) 22: internal -> softeu-archetype-jsf (JSF+Facelets Archetype) 23: internal -> jpa-maven-archetype (JPA application) 24: internal -> spring-osgi-bundle-archetype (Spring-OSGi archetype) 25: internal -> confluence-plugin-archetype (Atlassian Confluence plugin archety pe) 26: internal -> jira-plugin-archetype (Atlassian JIRA plugin archetype) 27: internal -> maven-archetype-har (Hibernate Archive) 28: internal -> maven-archetype-sar (JBoss Service Archive) 29: internal -> wicket-archetype-quickstart (A simple Apache Wicket project) 30: internal -> scala-archetype-simple (A simple scala project) 31: internal -> lift-archetype-blank (A blank/empty liftweb project) 32: internal -> lift-archetype-basic (The basic (liftweb) project) 33: internal -> cocoon-22-archetype-block-plain ([http://cocoon.apache.org/2.2/m aven-plugins/]) 34: internal -> cocoon-22-archetype-block ([http://cocoon.apache.org/2.2/maven-p lugins/]) 35: internal -> cocoon-22-archetype-webapp ([http://cocoon.apache.org/2.2/maven- plugins/]) 36: internal -> myfaces-archetype-helloworld (A simple archetype using MyFaces) 37: internal -> myfaces-archetype-helloworld-facelets (A simple archetype using MyFaces and facelets) 38: internal -> myfaces-archetype-trinidad (A simple archetype using Myfaces and Trinidad) 39: internal -> myfaces-archetype-jsfcomponents (A simple archetype for create c ustom JSF components using MyFaces) 40: internal -> gmaven-archetype-basic (Groovy basic archetype) 41: internal -> gmaven-archetype-mojo (Groovy mojo archetype) Choose a number: (1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/2 4/25/26/27/28/29/30/31/32/33/34/35/36/37/38/39/40/41) 15: : 8 [INFO] ------------------------------------------------------------------------ [ERROR] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] The defined artifact is not an archetype [INFO] ------------------------------------------------------------------------ [INFO] For more information, run Maven with the -e switch [INFO] ------------------------------------------------------------------------ [INFO] Total time: 3 seconds [INFO] Finished at: Sat Mar 27 08:22:38 IST 2010 [INFO] Final Memory: 8M/21M [INFO] ------------------------------------------------------------------------ C:\Users\Administrator> What can be the problem ?

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• What's the best JSF implementation?

  - by Jeff

  Hey everyone, I currently have a medium size Java web application sitting on top of Spring MVC. As much as I like (no sarcasm) coding straight HTML, CSS and JS, it's not possible for me to develop as fast as I'd like. I'm looking at different RAD frameworks to speed up my development. I'm looking at JSF implementations and component libraries, Flex, GWT and a few others. As of now, Apache MyFaces (with ICEFaces) seems to be the front runner in my mind, but I'm curious to find out what you all think of that specific implementation and if the Sun implementation is any better? What's important to me is something that is stable, has an active community and that it doesn't look like there is another technology in the near future that is going to eclipse JSF (which would drive me to use a different RAD framework). Thanks in advance for the responses.

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• Visual Studio 2008 "Publish" option generates some empty folders

  - by Kevin Pang

  When I right click an ASP.NET MVC solution and select the "Publish" option, the final output it generates contains several empty top-level folders. For instance, the "Service References" folder that gets automatically added when you add a service reference to a web app is generated without any files in it. Why are these folders generated at all if there's no content in them? Is there a way to let Visual Studio know to not bother publishing them? This isn't a big deal since it doesn't really affect the app (and before deploying I can always delete the empty folders), but it's a little annoying.

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• Entity Framework + SQLite deployment

  - by Pompair

  Hi, I have a ASP.NET MVC app that is using SQLite database through Entity Framework. Everything works on VS 2008's local development webserver. However, deploying the web app to my service provider causes this error: [ArgumentException: Unable to find the requested .Net Framework Data Provider. It may not be installed.] System.Data.Common.DbProviderFactories.GetFactory(String providerInvariantName) +1308959 System.Data.EntityClient.EntityConnection.GetFactory(String providerString) +35 Service provider has commented that they do not support SQLite. I had though that SQLite is independent of service provider's settings since it's App_Data deployable. Has anyone experiences of a succesfull Entity Framework + SQLite deployment? Cheers, -pom-

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• A PHP design pattern for the model part [PHP Zend Framework]

  - by Matthieu

  I have a PHP MVC application using Zend Framework. As presented in the quickstart, I use 3 layers for the model part : Model (business logic) Data mapper Table data gateway (or data access object, i.e. one class per SQL table) The model is UML designed and totally independent of the DB. My problem is : I can't have multiple instances of the same "instance/record". For example : if I get, for example, the user "Chuck Norris" with id=5, this will create a new model instance wich members will be filled by the data mapper (the data mapper query the table data gateway that query the DB). Then, if I change the name to "Duck Norras", don't save it in DB right away, and re-load the same user in another variable, I have "synchronisation" problems... (different instances for the same "record") Right now, I use the Multiton pattern : like Singleton, but multiple instances indexed by a key (wich is the user ID in our example). But this is complicating my developpement a lot, and my testings too. How to do it right ?

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• Passing jQuery object and WebMethod return value to an OnSuccess function

  - by iboeno

  I am calling a WebMethod from this code: if($(this).attr("checked")) { .. MyWebMethod(variable1, variable2, onSuccessFunction); } The MyWebMethod returns an integer, and I want to set $(this).attr("id") of the jQuery object above to the returned integer. Basically, I'm trying to do the equivalent of an MVC Ajax.ActionLink...AjaxOptions {UpdateTargetID =...} However, I can't figure out how to get both a reference to $(this) as well as the returned value. For example, if I do: MyWebMethod(variable1, variable2, onSuccessFunction($(this))); I can succesfully manipulate the jQuery object, but obviously it doesn't have the return value from the MyWebMethod. Alternatively, the first code block with a method signature of onSuccessFunction(returnValue) has the correct return value from MyWebMethod, but no concept of the jQuery object I'm looking for. Am I going about this all wrong?

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• validates_associated in production

  - by Rien

  Hi all. Imagine a simple model. class Service belongs_to :user validates_associated :user accepts_nested_attributes_for :user end Nothing special right? The validations on the associated User model trigger correctly in development mode. But don't do anything in production. I've added a validates_on_presence :user just like the docs say. This triggers when there's no User associated with the Service, but fill in one thing on the User model and nothing happens! It's driving me up the walls. Am I overlooking something? More info about the MVC: I use formtastic for the forms. Thanks!

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• NHibernate IPreUpdateEventListener weird behaviour

  - by mcaaltuntas

  I am using NHibernate 2.0.1 and IPreUpdateEventListener,IPreInsertEventListener events for audit logging purposes. I have a basic entity that has a one to many relation like this. User-------Books From an ASP.NET MVC controller method i am adding a book to a user like this. Book book =new Book("LOTR"); var userBook=user.AddBook(book); After session flushing OnPreInsert event called once for newly created Book object than OnPreUpdate called for all books objects in user's books collection even they have not changed.So I am updating LastMofiedDate property of all books objects and I dont want to do this. Is this supposed behaviour of NHibernate or am I missing something?

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• Python and App Engine project structure

  - by Joel

  Hello, I am relatively new to python and app engine, and I just finished my first project. It consists of several *.py files (usually py file for every page on the site) and respectively temple files for each py file. In addition, I have one big PY file that has many functions that are common to a lot of pages, in I also declared the classes of db.Model (that is the datastore kinds). My question is what is the convention (if there is one) of arranging these files. If I create a model.py with the datastore classes, should it be in different package? Where should I put my template files and all of the py files that handle every page (should they be in the same directory as the one big common PY file)? I have tried to look for MVC and such implementations online but there are very few. Thanks, Joel

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• How to kill mysql process through C#.

  - by deepesh khatri

  I am getting "too many connections" problem in an Asp .Net Mvc application which get fix when i manually kill process through Mysql v6.56 IDE, But on remote hosting computer where i can't kill process each time how can i fix this error. I have tried making a connection to information_schema DB's PROCESSLIST table but when connection is about to execute command there comes an error "access denied of root@loclahostto information_schema". I also have tried to grant all privileges to root@loclahost but still i am not able to fix this problem. I have been coding the same way from last two years but in this application i am getting this problem i have use close each connection in every method. Please if some one have ever got this problem or know the answer.Please help me. Thanx in advance

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• Selective PHP autoload

  - by Extrakun

  I am writing a add-on module which is integrated with an existing PHP application; Because I am using a MVC pattern, and which may requires lot of inclusion of classes (which might not be used at all depending on the action of the user), I decide to use autoloading of classes. However, I have to ensure that the autoload function does not interferes with the normal operations of the existing applications. Does autoload only kicks in if a class name is not defined? Say I have to write another module which uses its own autoload functions (say, I have an autoload for a module, since they each reside in their own folder), how do I differentiate which module is it for? For #2, I thought of 2 options. Either prefix the class name with the module name (Such as 'MyNewModule_View_Default' and 'AnotherModule_View_Default'), or use file_exists to check the include file exists. Other suggestions are welcomed too!

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• Django vs. Pylons

  - by Kenneth Reitz

  I've recently become a little frustrated with Django as a whole. It seems like I can't get full control over anything. I love Python to death, but I want to be able (and free) to do something as simple as adding a css class to an auto-generated form. One MVC framework that I have really been enjoying working with is Grails (groovy). It has a FANTASTIC templating system and it lets you really have full control as you'd like. However, I am beyond obsessed with Python. So I'd like to find something decent and powerful written in it for my web application development. Any suggestions? Pylons maybe?

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