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  • How to Determine The Module a Particular Exception Class is Defined In

    - by doug
    Note: i edited my Q (in the title) so that it better reflects what i actually want to know. In the original title and in the text of my Q, i referred to the source of the thrown exception; what i meant, and what i should have referred to, as pointed out in one of the high-strung but otherwise helpful response below, is the module that the exception class is defined in. This is evidenced by the fact that, again, as pointed out in one of the answers below the answer to the original Q is that the exceptions were thrown from calls to cursor.execute and cursor.next, respectively--which of course, isn't the information you need to write the try/except block. For instance (the Q has nothing specifically to do with SQLite or the PySQLite module): from pysqlite2 import dbapi2 as SQ try: cursor.execute('CREATE TABLE pname (id INTEGER PRIMARY KEY, name VARCHARS(50)') except SQ.OperationalError: print("{0}, {1}".format("table already exists", "... 'CREATE' ignored")) # cursor.execute('SELECT * FROM pname') while 1: try: print(cursor.next()) except StopIteration: break # i let both snippets error out to see the exception thrown, then coded the try/finally blocks--but that didn't tell me anything about which module the exception class is defined. In my example, there's only a single imported module, but where there are many more, i am interested to know how an experienced pythonista identifies the exception source (search-the-docs-till-i-happen-to-find-it is my current method). [And yes i am aware there's a nearly identical question on SO--but for C# rather than python, plus if you read the author's edited version, you'll see he's got a different problem in mind.]

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  • learning OO with PHP

    - by dole doug
    Hi there I've started to learn OO programming, but using the PHP language with the help of the "PHP 5 Objects, Patterns, and Practice" book. The thing is that I wish to learn to use into same time the CakePHP framework which make use a lot of the MVC pattern. Because I don't know much about OO and less about MVC I wish to understand the later one but assumptions I make with my OO knowledges might have bad impact on long term. Does anyone know a good tutorial about what means MVC (more than cakephp manual says about it, but more easy to read/understand than wikipedia)? TY

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  • Automated builds of BizTalk 2009 projects using Team System 2008 Build

    - by Doug
    I'm trying to configure automated build of BizTalk 2009 projects using Team Foundation Server 2008. We have a staging server which has BizTalk 2009 installed. I ran the Team Foundation Server Build Setup on this server, and it can build non-BizTalk projects OK. However, BizTalk projects fail to build. I suspected something was amiss when "Deployment" was not a valid build type! I tried copying various things over from a developer PC which has BizTalk and Visual Studio 2008 installed, but still couldn't get it to work. I don't really want to install Visual Studio on the staging server, but without it the "Developer Tools and SDK" option in the BizTalk install is greyed out. I guess I need this in order for BizTalk projects to compile. So, my question is can a BizTalk 2009 server be used as a TFS build agent to build BizTalk projects without having Visual Studio installed. If the answer is no, what's the smallest part of VS that can be installed to get this to work? Thanks in advance.

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  • Silverlight client never calls WCF Service

    - by Doug Nelson
    Hi all, This one has me completed stumped. I have developed a silverlight application that calls back to WCF services ( it's a silverlight - basicHttpBinding) The site works perfectly fine from my development machine, but when it is deployed to the developement server. The application is delivered with the XAP just fine, but it never attempts to talk to the service. I have a service call in the bootstrapper so it should be calling this when the client starts up. The services are healthy. They can be browsed to and show the standard WCF service display. We have been through the bindings many times and everything seems to be ok. I have added an extensive amount of error handling for displaying any errors, but on this dev server, no service calls and no errors are being raised. Fiddler shows the page being loaded up, but my client never issues a call to the service. The service is in the same folder as the default.aspx which hosts the Silverlight client. This is a Silverlight 3.0 app. Anybody ever seen anything similar?

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  • A Book about Productivity for programmers

    - by dole doug
    I just find this video about productivity for programmers by peepcode and I'm thinking to download and see it. Besides that, I have to tell you that I prefer to read a book and take notices about it, rather than seeing a video. So, my question is: can you recommend me a good book about productivity for programmers with tips, advices, best practice, et? ps: I'm new into this work field(because I'm still a student).

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  • DWM and painting unresponsive apps

    - by Doug Kavendek
    In Vista and later, if an app becomes unresponsive, the Desktop Window Manager is able to handle redrawing it when necessary (move a window over it, drag it around, etc.) because it has kept a pixel buffer for it. Windows also tries to detect when an app has become unresponsive after some timeout, and tries to make the best of the situation -- I believe it dims out the window, adds "Not Responding" to its title bar, and perhaps some other effects. Now, we have a skinned app that uses window regions and layered windows, and it doesn't play well with these effects. We've been developing on XP, but have noticed a strange effect when testing on Vista. At some points the app may spend a few moments on some calculation or callback, and if it passes the unresponsive threshold (I've read that it's a five second timeout, but I cannot find a link), a strange graphical problem occurs: any pixels that would be 100% transparent due to the window regions turn black, which effectively makes the window rectangular again, with a black background. There seem to be other anomalies, with the original window's pixels being shifted a bit in some child dialogs. I am working on reducing such delays (ideally Windows will never need to step in like this), and trying to maintain responsiveness while it's busy, but I'd still like to figure out what is causing it to render like that, as I can't guarantee I can eliminate all delays. Basically, I just would like to know what Windows is doing when this happens, and how I can make my app behave properly with it. Skinned apps have to still work on Vista and later, so I need to figure out what I'm doing that's non-standard. I don't even know exactly how to look for information into how Windows now handles unresponsive apps, as my searches only return people having issues with apps that are unresponsive, or very rudimentary explanations of what the DWM does with such apps. Heck I'm not even 100% sure it's the DWM responsible, but it seems likely. Any potential leads? Photo of problem; screen shots won't capture the effect (note that the white dialog's buffer is shifted -- it is shifted exactly by the distance it has been offset from the main (blue) window):

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  • Forking in PHP on Windows

    - by Doug Kavendek
    We are running PHP on a Windows server (a source of many problems indeed, but migrating is not an option currently). There are a few points where a user-initiated action will need to kick off a few things that take a while and about which the user doesn't need to know if they succeed or fail, such as sending off an email or making sure some third-party accounts are updated. If I could just fork with pcntl_fork(), this would be very simple, but the PCNTL functions are not available in Windows. It seems the closest I can get is to do something of this nature: exec( 'php-cgi.exe somescript.php' ); However, this would be far more complicated. The actions I need to kick off rely on a lot of context that already will exist in the running process; to use the above example, I'd need to figure out the essential data and supply it to the new script in some way. If I could fork, it'd just be a matter of letting the parent process return early, leaving the child to work on a few more things. I've found a few people talking about their own work in getting various PCNTL functions compiled on Windows, but none seemed to have anything available (broken links, etc). Despite this question having practically the same name as mine, it seems the problem was more execution timeout than needing to fork. So, is my best option to just refactor a bit to deal with calling php-cgi, or are there other options? Edit: It seems exec() won't work for this, at least not without me figuring some other aspect of it, as it waits until the call returns. I figured I could use START, sort of like exec( 'start php-cgi.exe somescript.php' );, but it still waits until the other script finishes.

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  • where can I find the diff algorithm?

    - by dole doug
    Does anyone know where can i find an explanation and implementation of the diff algorithm. First of all i have to recognize that i'm not sure if this is the correct name of the algorithm. For example, how Stackoverflow marks the differences between two edits of the same question? ps: I know C and PHP programming languages. ty

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  • Recursion and Iteration

    - by Doug
    What is the difference? Are these the same? If not, can someone please give me an example? MW: Iteration - 1 : the action or a process of iterating or repeating: as a : a procedure in which repetition of a sequence of operations yields results successively closer to a desired result b : the repetition of a sequence of computer instructions a specified number of times or until a condition is met Recusion - 3 : a computer programming technique involving the use of a procedure, subroutine, function, or algorithm that calls itself one or more times until a specified condition is met at which time the rest of each repetition is processed from the last one called to the first

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  • SNMP: ASN.1 MIB Definitions. Referencing a table within a table

    - by Doug
    Its's been a while since I've written ASN.1 so.. Our data model is comprised of several table definitions within a table. This is not workable in SNMP, so we need to flatten the definitions. The easiest way to do this would be to have the embedded table indexed by the same OID as the parent table. Thus someTableEntry ::= SEQUENCE { someTableIndex Integer32, someTableDomain Integer32, someTableFooTable SEQUENCE OF SomeTableFooTable } becomes someTableEntry ::= SEQUENCE { someTableIndex Integer32, someTableDomain Integer32, } someTableFooTable ::= SEQUENCE { someTableIndex Integer32, .... } The good thing is that in our application there will NEVER be any kind of SET, GET or GET NEXT so no need for SNMP walk (there are some very good reasons for this that supersede the need for network management elegance. All attributes will be reported via traps only. I think this is a valid SNMP MIB definitions but wanted to get some feedback. Thanks in advance.

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  • What is <ns0: for?

    - by Doug
    I was looking at this question: http://stackoverflow.com/questions/117641/how-to-remove-duplicate-elements-from-an-xml-file It has <ns0: for ? I have never seen it before.

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  • What are the recommended BEST CASE hardware requirements for TFS 2010

    - by Doug
    Hi guys, i have installed TFS 2010 in a 2 server setup with an App Tier server and a SQL Server and am not 100% happy with the performance. Both are running in VM's on SAN disks and have been given the following virtual hardware each: Windows 2008 R2 1 CPU @ 2.8Ghz 2gb RAM what should i lift - neither machine is hammered but both do go up to 80% when people are doing things on them - should i add another CPU to each - usually this is now required in a VMWARE setup but i don't know if TFS 2010 takes advantage of an extra core??? thank you in advance :-)

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  • Can somebody explain this Objective C method declaration syntax

    - by Doug R
    I'm working through an iPhone development book* without really knowing Objective C. For the most part I'm able to follow what's going on, but there are a few method declarations like the one below that I'm having a bit of trouble parsing. For example: - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger) section { return [self.controllers count]; //controllers is an instance variable of type NSArray in this class } It looks this is a method called numberOfRowsInSection, and it returns an NSInteger, and takes an NSInteger as a parameter which is locally called 'section'. But I don't understand all the references to tableView, or why this takes a parameter when it is not used within the method. Can somebody clarify this? Thanks. *p. 258, Beginning iPhone 3 Development, by Mark and LaMarche, published by Apress

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  • PHP Email Form Sending Random Text

    - by Doug
    Hi, I did a webpage for a client that involved a series of text boxes asking for specific information such as a person's name, e-mail address, company, etc. Along with a button that would e-mail the information to my client. Whenever I tested the button it seemed to work perfectly, I uploaded the page and thought I was done. But, the other day my client got this email from the site: Name: rfhopzdgmx rfhopzdgmx Email: [email protected] Company: zUDXatAfoDvQrdH Mailing Address: AaSsXklqpHIsoCNcei gXsimMPRBYZqq vGLvZraZNdpOAV, ChsmuibE PoKzaSCubXPRI Home Phone: CIJbIfjMfjIaTqAlD Work Phone: JFLZBOvru Cell Phone: XlFJTTFGiTTiiFQfy Fax: UEJMOVZodWPkKxew Comments: sPvSCE hgetwoguderu,* [url=http://atyktjlxcznl.com/]atyktjlxcznl[/url], [link=http://nudvfcehwpyg.com/]nudvfcehwpyg[/link], http://lvvwkbzbhnzp.com/ Note: The * line contained HTML link code, I just don't know how to get this site to show it. Here is the PHP code in the site for the e-mail button. <?php //This Sends A Formatted Text Email Using The Text Boxes if ($_POST['submit']){ //This Gets The Form Data $fname = $_POST['fName']; $lname = $_POST['lName']; $email = $_POST['email']; $company = $_POST['co']; $address1 = $_POST['address1']; $address2 = $_POST['address2']; $city = $_POST['city']; $state = $_POST['state']; $zip = $_POST['zip']; $homep = $_POST['homeP']; $workp = $_POST['workP']; $cellp = $_POST['cellP']; $fax = $_POST['fax']; $comments = $_POST['txaOutputField']; //echo "<script language = 'javascript'>alert('YAY');</script>"; if ($fname && $lname && $email && $comments){ //Check If Required Fields Are Filled //This Sets The SMTP Configuration In php.ini ini_set("SMTP", "smtp.2ndsourcewire.com"); //This Replaces Any Blank Fields With 'None's if ($company == ""){ $company = "None"; } if ($address1 == ""){ $address1 = "None"; } if ($city == ""){ $city = "None"; } if ($state == ""){ $state = "None"; } if ($zip == ""){ $zip = "None"; } if ($homep == ""){ $homep = "None"; } if ($workp == ""){ $workp = "None"; } if ($cellp == ""){ $cellp = "None"; } if ($fax == ""){ $fax = "None"; } //This Creates The Variables Necessary For The Email $to = "CLIENT EMAIL WHICH I'M CENSORING"; $subject = "Email from 2ndSourceWire.com"; $from = "From: [email protected]"; $secondEmail = "MY EMAIL WHICH I'M ALSO CENSORING"; if ($address2 == ""){ $body = "Name: $fname $lname\n". "Email: $email\n". "Company: $company\n\n". "Mailing Address:\n". "$address1\n". "$city, $state $zip\n\n". "Home Phone: $homep\n". "Work Phone: $workp\n". "Cell Phone: $cellp\n". "Fax: $fax\n\n". "Comments:\n". "$comments"; } else { $body = "Name: $fname $lname\n". "Email: $email\n". "Company: $company\n\n". "Mailing Address:\n". "$address1\n". "$address2\n". "$city, $state $zip\n\n". "Home Phone: $homep\n". "Work Phone: $workp\n". "Cell Phone: $cellp\n". "Fax: $fax\n\n". "Comments:\n". "$comments"; } //This Sends The Email mail($to, $subject, $body, $from); mail($secondEmail, $subject, $body, $from); echo "<script language = 'javascript'>alert('The email was sent successfully.');</script>"; } else { //The Required Fields Are Not Filled echo "<script language = 'javascript'>alert('Please fill your first name, last name, email address, and your comment or question.');</script>"; } } ? I'm a little dumbfounded on how this happened, the client mentioned a couple e-mails of this, so I don't think it is a random glitch. Also, the e-mail address was formatted like an e-mail address, so someone or some program was interpreting the labels next to each text box. I also noticed that the first and last names entered are the same word, even though they were in different text boxes, I'm thinking its some spam program, but wouldn't they try to advertise something and make money, rather than just spouting out random text? Also, the comments section makes no sense to me at all, the links goto nowhere and they're all perfectly formatted, a random person just screwing around wouldn't know those tags, and a programmer doing it wouldn't bother with it, but also neither would a program. I have no idea what caused this or how to fix it, I'm drawing a blank here. Anyone have any ideas?

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  • Is it worthwhile learning about Emacs? [closed]

    - by dole doug
    Hi there Some time ago, I've heard what a great tool Emacs can be. I've read some papers about it and some watched some video too. I've read that emacs is great not only for developers but for usual users too...so i decided to start learning how to use it and wok with it. The problem is that I'm a MS Windows user and I learn in my spare time PHP and C(I also did some products on those languages, but i still considering myself in learning stage). Another problem is that I learn alone (no friends around to ask/learn from them, programming related stuff). Can you give me some tips about how to use those type of tools(especially those written for gnu/unix) with "poor" GUI but rich features? Do you recommend to use the specific windows written applications only and forget about those which come from GNU?

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  • php remove button keeps retreiving posted information

    - by Doug
    Hi every1! im quickly finding im quite the beginner to php, so please bare with me! I have a quick problem, I have a remove button for a shopping cart and the code works for it everytime except for the last product thats in the cart. If a person pushes the addtoCart button the URL is reloaded with ?buyproduct=$productNumber and when the remove button is pushed the product is removed. Right so everything is good, but when you try to remove the last item, it keeps reading the product thats in the URL. so the quantity remains 1 for the current $productNumber. i've tried adding the action in the form method tag so that the page reloads without the ?buyproduct=$productNumber, which does work however there are page numbers and sections that were also in the URL and these get reset also. i know the remove is working because once the ?buyproduct=$productNumber is gone from the URL (which can happen for example if they go to another section in the catalog) then the cart can be completely emptied. Thank you so much ahead of time for any1's help, I've used this site before and you guys are genius's!

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  • R Install/Update on Mac OS X (Snow Leopard): where does R put files during install/config?

    - by doug
    In sum, there's a stray preference-like file or two (probably just one) that i can't find. Here's the whole story: I recently attempted to update my R install from 2.10 to 2.11. As i have done before, i installed from source. I know that all of the dependencies are correctly installed and made available to R, because my prior install worked fine. When i upgraded to 2.11, i am unable to install packages (no exception thrown, it just doesn't appear to complete the install and is unresponsive so i have to quit + restart R. Given i install from source, there are any number of points in the process that i could have messed up. What i need to do now is "start over" which requires that i clear out my my prior install. I am having trouble doing that. There is still at least one preference file or something like that i can't find and one of these is causing the problem, so i need to find it and terminate it with extreme prejudice before i do a fresh install. Although i set a number of flags during the install, i have never opted out of the default install locations during the config step. There has to be one or more preference files still in my file structure (and that's also accessible to the new install of R) because after i follow all of the steps below, then do a fresh install, when i start R for the first time, some of my preferences have persisted (e.g., quartz settings, GUI background color, editor selection, etc.). Again, the problem is that i just cannot locate those files. Finally, the problem can't be that during my last install from source, i inadvertently caused a preference file to be sent to an off-spec location--because again, a fresh R install (whether from source or from the OS X binaries) is finding those files Here's what i've done prior to attempting a clean install of R: Removed files from these locations: ~/.RData ~/.RHistory /Applications/R64.app /Applications/R.app /Library/Frameworks/R.framework (i also removed all symlinks from these) Cleared all RAM and disk caches, in particular the directory where i know R caches: ~/Library/Caches/R* (in fact i've cleared this entire directory) Checked for all 'hidden' files in the OS X directories where login/startup files are often placed: /etc/ ~/ In addition, i've checked R-help, and i've also read through the relevant portions of 'R Installation and Administration'--no luck. I've also searched searched my file structure using the various bash utilities, which nearly always solves problems of this sort quite easily, but in this case obviously searching by name or even pattern is more problematic.

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  • WPF 4 Datagrid with ComboBox

    - by Doug
    I have a WPF 4 app with a ComboBox embedded in a DataGrid. The ComboBox is in a template column that displays the combobox when in edit mode but just a TextBlock otherwise. If I edit the cell and pick a new value from the combobox, when leaving the cell, the TextBlock in view mode does not reflect the new value. Ultimately, the new value gets saved and is displayed when the window is refreshed but it does not happen while still editing in the grid. Here are the parts that are making this more complicated. The grid and the combobox are bound to different ItemsSource from the EnityFramework which is tied to my database. For this problem, the grid is displaying project members. The project member name can be picked from the combobox which gives a list of all company employees. Any ideas on how to tie the view mode of the DataGridColumnTemplate to the edit value when they are pointing to different DataSources? Relevant XAML <Window.Resources> <ObjectDataProvider x:Key="EmployeeODP" /> </Window.Resources> <StackPanel> <DataGrid Name="teamProjectGrid" AutoGenerateColumns="false" ItemsSource="{Binding Path=ProjectMembers}" <DataGrid.Columns> <DataGridTemplateColumn Header="Name" x:Name="colProjectMember"> <DataGridTemplateColumn.CellTemplate> <DataTemplate> <TextBlock Text="{Binding Path=ProjectMemberFullName}" /> </DataTemplate> </DataGridTemplateColumn.CellTemplate> <DataGridTemplateColumn.CellEditingTemplate> <DataTemplate> <ComboBox x:Name="ProjectMemberCombo" IsReadOnly="True" DisplayMemberPath="FullName" SelectedValue="{Binding Path=Employee}" ItemsSource="{Binding Source={StaticResource EmployeeODP}}" /> </DataTemplate> </DataGridTemplateColumn.CellEditingTemplate> </DataGridTemplateColumn> <DataGridTextColumn x:Name="colProjectRole" Binding="{Binding Path=ProjectRole}" Header="Role" /> </DataGrid.Columns> </DataGrid> </StackPanel> Relevant Code Behind this.DataContext = new MyEntityLibrary.MyProjectEntities(); ObjectDataProvider EmployeeODP= (ObjectDataProvider)FindResource("EmployeeODP"); if (EmployeeODP != null) { EmployeeODP.ObjectInstance = this.DataContext.Employees; }

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  • How do I pipe in FileMerge as a diff tool with git on OSX?

    - by doug
    I'm new to git, on OSX, using it via command line. I come from the world of Tortoise SVN and Beyond Compare on Windows. I want to be able to pipe in diffs to happen via FileMerge which I have installed already. I was able to do this with TextMate simply by using: git diff | mate But I'm not sure how to get that set up so I can use FileMerge instead?

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  • tips for learning from opensource

    - by dole doug
    Hi there, Besides practice(practice and more practice) reading books and forums, analyzing others people code is a must in order to have a career in this field. The problem is that I'm a student(feels like always on learning stage) but sometimes i can't solve the problems by my own. I was thinking that on public open source repositories might be the answer I'm looking for. My question is how can i find the answer to some of my problems in open source projects/community? Do you have any tips to share for me? ty

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