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  • inheritance from str or int

    - by wiso
    Why I have problem creating a class the inherite from str (or also int) class C(str): def __init__(self, a, b): str.__init__(self,a) self.b = b C("a", "B") TypeError: str() takes at most 1 argument (2 given) tha same appened if I try to use int instead of str, but it works with custom classes. I need to use __new__ instead of __init__? why?

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  • How to pass an IronPython instance method to a (C#) function parameter of type `Func<Foo>`

    - by Daren Thomas
    I am trying to assign an IronPython instance method to a C# Func<Foo> parameter. In C# I would have a method like: public class CSharpClass { public void DoSomething(Func<Foo> something) { var foo = something() } } And call it from IronPython like this: class IronPythonClass: def foobar(): return Foo() CSharpClass().DoSomething(foobar) But I'm getting the following error: TypeError: expected Func[Foo], got instancemethod

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  • Facebook like button not going back side on the fixed div

    - by Lahiru Chathuranga
    I added a Facebook like button to my website.My website has a fixed div on top of the page(blue color div in the image). The like button is below that(in a div which can scroll) My problem is when the page is scroll down the like button comes on top of the fixed div(blue color).I want to scroll it from the backside of the div.How can I do that? There are couple of screenshots I added Before Scroll After Scroll Here is my code of the fixed div <script type="text/javascript"> function got_to_signup(){ window.location.href = "view/policy"; } </script> <div id="fb-root"></div> <script>(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_GB/all.js#xfbml=1&appId=368003049941951"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk'));</script> <div style="width:100%;background-color:#0094d6;" > <div id="dd" style="background-color:#0094d6; width:100%; height:75px;position:fixed; " class="center "><div id="a" style="width:1010px; height:75px; background-color:#000000;background:url(xx.png); background-repeat:no-repeat; font-family:Arial, Helvetica, sans-serif; font-size:11px; color:#003; " class="inner div_border"> <table width="1010" border="0" > <tr > <td width="15%" rowspan="2"><a href="" style="cursor:pointer; cursor:hand;"><div style="width:200px; height:50px;background-color:none;"></div></a></td> <td width="22%" height="14">&nbsp;</td> <td width="5%">&nbsp;</td> <td width="5%">&nbsp;</td> <td width="28%">&nbsp;</td> <td width="2%">&nbsp;</td> <td width="23%">&nbsp;</td> </tr> <tr> <td colspan="4"> </td> <td colspan="2"><span style="float: right; " ><div style="background-color:#006d9e;border-radius:3px; width:250px; height:34px; display: table; vertical-align: middle; color:#FFF; "> <table width="100%" border="0" > <tr > <td width="43%" style="text-align:center"> Start to bump !</td> <td width="29%"><div id='basic-modal'><span style="float: right; " ><input name="login_btn" type="button" class="login_button basic" id="login_btn" value="Sign in" /></span></div></td> <td width="28%"><span style="float: right; " ><form id="form_reg" method="post"><input name="register_btn" type="button" class="register_button" id="register_btn" value="Sign up" onclick="got_to_signup()"/></form></span></td> </tr> </table> </div></span></td> </tr> <tr> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> <td style="color:#FFF; font:Arial, Helvetica, sans-serif; font-size:9px; text-align:right;"> Beta Version </td> </tr> </table> </div></div></div> here is my facebook like button code </script> <div id="fb-root"></div> <script>(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_GB/all.js#xfbml=1&appId=368003049941951"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk'));</script> <td height="21" colspan="2"> <table width="187" style="margin-left:3px;font-size:1px;background-image:url(share_back.png);background-repeat:no-repeat;border-radius:3px;" > <!--tweeter button--> <tr><td width="71"><a href="https://twitter.com/bump_lk" class="twitter-follow-button" data-show-count="false" style="float:right;">Follow @bump_lk</a> <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script></td> <!--facebook like button--> <td width="48"><div class="fb-like" data-href="https://www.facebook.com/Bump.lk" data-send="false" data-layout="button_count" data-width="10" data-show-faces="false" style="position:relative;"></div> </td></tr></table></td> <td>&nbsp;</td> <td>&nbsp;</td> <td >

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  • jQuery fadeIn fadeOut pause on hover

    - by theDawckta
    I have a little jQuery snippet that will fadeIn and fadeOut a group of divs over a select interval. I now need to pause this fadeIn fadeOut on hover, then resume on mouse out. Any help is appreciated. Here is the relevant code. The following is what is located in my body <div class="gcRotate"> <div class="gcRotateContent"> <div style="border: solid 2px black; text-align: center; width: 150px;"> This is first content <img src="http://pix.motivatedphotos.com/2008/6/16/633492359109161542-Skills.jpg" alt="Dude" /> </div> </div> <div class="gcRotateContent"> <div style="border: solid 2px black; text-align: center; width: 150px"> This is second content <img src="http://www.funnycorner.net/funny-pictures/5010/cheezburger-locats.jpg" alt="Dude" /> </div> </div> <div class="gcRotateContent"> <div style="border: solid 2px black; text-align: center; width: 150px"> This is third content <img src="http://icanhascheezburger.files.wordpress.com/2007/06/business.jpg" alt="Dude" /> </div> </div> </div> <div> This shouldn't move. </div> <script type="text/javascript"> function fadeContent() { $(".gcRotate .gcRotateContent:hidden:first").fadeIn(500).delay(2000).fadeOut(500, function() { $(this).appendTo($(this).parent()); fadeContent(); }); } $(".gcRotate").height(0); $(".gcRotateContent").each( function() { if ($(".gcRotate").height() < $(this).height()) { $(".gcRotate").height($(this).height()); } } ); $(".gcRotateContent").each(function() { $(this).css("display", "none") }); fadeContent(); </script>

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  • JQuery TableSorter with Pager and LightWindow problem

    - by Maxim
    Hi 2ALL... I've a tablesorter with attached pager plugin on my page with links 'Details' in the one of the cell. Links have a class='lightwindow' and after clicking is rising up a LightWindow script with a window. So it work's vell on the First Page .. when i click Next Page on SortTable.Pager and clickin on my link 'Details' it's doesnt work correctly, it looks like my links lost their class='lightwindow'. Any suggestions?

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  • Why would Ruby fail equality on 2 floats that appear the same?

    - by btelles
    Hi there, I have a calculation that generates what appears to be the Float 22.23, and a literal 22.23 like so: some_object.total => 22.23 some_object.total.class => Float 22.23 => 22.23 22.23.class => Float But for some reason, the following is false: some_object.total == 22.23 ? true : false Wacky, right? Is there some kind of precision mechanism being used that maybe isn't completely transparent through the some_object.total call?

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  • change attributes of SVG graph without refresh

    - by Mike Hudak
    Hello, I have a simple SVG graph generated by GraphViz: <?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> <!-- Generated by graphviz version 2.26.3 (20100126.1600) --> <!-- Title: G Pages: 1 --> <svg width="138pt" height="168pt" viewBox="0.00 0.00 138.00 168.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g id="graph1" class="graph" transform="scale(1 1) rotate(0) translate(4 164)"> <title>G</title> <polygon fill="white" stroke="white" points="-4,5 -4,-164 135,-164 135,5 -4,5"/> <!-- Node1 --> <g id="node1" class="node"><title>Node1</title> <a xlink:href="http://localhost/viz/applet.php" xlink:title="Internet"> <image xlink:href="images/cloud.png" width="130px" height="77px" preserveAspectRatio="xMinYMin meet" x="0" y="-159.5"/> <text text-anchor="middle" x="65" y="-116.4" font-family="Times New Roman,serif" font-size="14.00">&#39;.$Internet.&#39;</text> </a> </g> <!-- Node2 --> <g id="node2" class="node"><title>Node2</title> <a xlink:href="http://localhost/viz/applet.php"> <image xlink:href="images/file server.png" width="44px" height="45px" preserveAspectRatio="xMinYMin meet" x="43" y="-45.5"/> </a> </g> <!-- Node1&#45;&gt;Node2 --> <g id="edge2" class="edge"><title>Node1&#45;&gt;Node2</title> <a xlink:title="Bandwidth: 1544kbps&#10;Using link: 12%&#10;VOIP calls: 4&#10;Packet rate: 10000&#10;Packet loss: 2"> <path fill="none" stroke="black" d="M65,-82.2678C65,-73.5404 65,-64.358 65,-55.8964"/> <polygon fill="black" stroke="black" points="68.5001,-55.6524 65,-45.6524 61.5001,-55.6525 68.5001,-55.6524"/> </a> </g> </g> </svg> I want to change some atributes: for example " VOIP calls: 4 " -changing "4" to value from Database(LDAP) without refreshing whole SVG graph <a xlink:title="Bandwidth: 1544kbps&#10;Using link: 12%&#10;VOIP calls: 4&#10;Packet rate: 10000&#10;Packet loss: 2"> Thank you for your answers

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  • How do I classify using SVM Classifier?

    - by Gomathi
    I'm doing a project in liver tumor classification. Actually I initially used Region Growing method for liver segmentation and from that I segmented tumor using FCM. I,then, obtained the texture features using Gray Level Co-occurence Matrix. My output for that was stats = autoc: [1.857855266614132e+000 1.857955341199538e+000] contr: [5.103143332457753e-002 5.030548650257343e-002] corrm: [9.512661919561399e-001 9.519459060378332e-001] corrp: [9.512661919561385e-001 9.519459060378338e-001] cprom: [7.885631654779597e+001 7.905268525471267e+001] Now how should I give this as an input to the SVM program. function [itr] = multisvm( T,C,tst ) %MULTISVM(2.0) classifies the class of given training vector according to the % given group and gives us result that which class it belongs. % We have also to input the testing matrix %Inputs: T=Training Matrix, C=Group, tst=Testing matrix %Outputs: itr=Resultant class(Group,USE ROW VECTOR MATRIX) to which tst set belongs %----------------------------------------------------------------------% % IMPORTANT: DON'T USE THIS PROGRAM FOR CLASS LESS THAN 3, % % OTHERWISE USE svmtrain,svmclassify DIRECTLY or % % add an else condition also for that case in this program. % % Modify required data to use Kernel Functions and Plot also% %----------------------------------------------------------------------% % Date:11-08-2011(DD-MM-YYYY) % % This function for multiclass Support Vector Machine is written by % ANAND MISHRA (Machine Vision Lab. CEERI, Pilani, India) % and this is free to use. email: [email protected] % Updated version 2.0 Date:14-10-2011(DD-MM-YYYY) u=unique(C); N=length(u); c4=[]; c3=[]; j=1; k=1; if(N>2) itr=1; classes=0; cond=max(C)-min(C); while((classes~=1)&&(itr<=length(u))&& size(C,2)>1 && cond>0) %This while loop is the multiclass SVM Trick c1=(C==u(itr)); newClass=c1; svmStruct = svmtrain(T,newClass); classes = svmclassify(svmStruct,tst); % This is the loop for Reduction of Training Set for i=1:size(newClass,2) if newClass(1,i)==0; c3(k,:)=T(i,:); k=k+1; end end T=c3; c3=[]; k=1; % This is the loop for reduction of group for i=1:size(newClass,2) if newClass(1,i)==0; c4(1,j)=C(1,i); j=j+1; end end C=c4; c4=[]; j=1; cond=max(C)-min(C); % Condition for avoiding group %to contain similar type of values %and the reduce them to process % This condition can select the particular value of iteration % base on classes if classes~=1 itr=itr+1; end end end end Kindly guide me. Images:

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  • IF Statement has strange behavior

    - by BSchlinker
    I've developed a 'custom' cout, so that I can display text to console and also print it to a log file. This cout class is passed a different integer on initialization, with the integer representing the verbosity level of the message. If the current verbosity level is greater then or equal to the verbosity level of the message, the message should print. The problem is, I have messages printing even when the current verbosity level is too low. I went ahead and debugged it, expecting to find the problem. Instead, I found multiple scenarios where my if statements are not working as expected. The statement if(ilralevel_passed <= ilralevel_set) will sometimes proceed even if ilralevel_set is LESS then ilralevel_passed. You can see this behavior in the following picture (my apologizes for using Twitpic) http://twitpic.com/1xtx4g/full. Notice how ilralevel_set is equal to zero, and ilralevel_passed is equal to one. Yet, the if statement has returned true and is now moving forward to pass the line to cout. I've never seen this type of behavior before and I'm not exactly sure how to proceed debugging it. I'm not able to isolate the behavior either -- it only occurs in certain parts of my program. Any suggestions are appreciated as always. // Here is an example use of the function: // ilra_status << setfill('0') << setw(2) << dispatchtime.tm_sec << endl; // ilra_warning << "Dispatch time (seconds): " << mktime(&dispatchtime) << endl; // Here is the 'custom' cout function: #ifndef ILRA_H_ #define ILRA_H_ // System libraries #include <iostream> #include <ostream> #include <sstream> #include <iomanip> // Definitions #define ilra_talk ilra(__FUNCTION__,0) #define ilra_update ilra(__FUNCTION__,0) #define ilra_error ilra(__FUNCTION__,1) #define ilra_warning ilra(__FUNCTION__,2) #define ilra_status ilra(__FUNCTION__,3) // Statics static int ilralevel_set = 0; static int ilralevel_passed; // Classes class ilra { public: // constructor / destructor ilra(const std::string &funcName, int toset) { ilralevel_passed = toset; } ~ilra(){}; // enable / disable irla functions static void ilra_verbose_level(int toset){ ilralevel_set = toset; } // output template <class T> ilra &operator<<(const T &v) { if(ilralevel_passed <= ilralevel_set) std::cout << v; return *this; } ilra &operator<<(std::ostream&(*f)(std::ostream&)) { if(ilralevel_passed <= ilralevel_set) std::cout << *f; return *this; } }; // end of the class #endif /* ILRA_H_ */

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  • invalid header file while using jar for archiving

    - by arshad
    When i use this cmd line : jar cmf arshad.mf ars.jar *.class i get this error : invalid header field name:Manifest-version This is my manifest file : Manifest-Version: 1.0 Main-Class:t i made the manifest file with notepad in UTF-8 encoding - is there any problem with the manifest ?

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  • Django: Summing values

    - by Anry
    I have a two Model - Project and Cost. class Project(models.Model): title = models.CharField(max_length=150) url = models.URLField() manager = models.ForeignKey(User) class Cost(models.Model): project = models.ForeignKey(Project) cost = models.FloatField() date = models.DateField() I must return the sum of costs for each project. view.py: from mypm.costs.models import Project, Cost from django.shortcuts import render_to_response from django.db.models import Avg, Sum def index(request): #... return render_to_response('index.html',... How?

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  • Map entries become vectors when piped thru a macro

    - by Gavin Grover
    In Clojure, a map entry created within a macro is preserved... (class (eval `(new clojure.lang.MapEntry :a 7))) ;=> clojure.lang.MapEntry ...but when piped thru from the outside context collapses to a vector... (class (eval `~(new clojure.lang.MapEntry :a 7))) ;=> clojure.lang.PersistentVector This behavior is defined inside LispReader.syntaxQuote(Object form) condition if(form instanceof IPersistentCollection). Does anyone know if this is intended behavior or something that will be fixed?

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  • How to inherit constructors with arguments in .NET?

    - by Soumya92
    I have a "MustInherit" .NET class which declares a constructor with an integer parameter. However, Visual Studio gives me an error when I create any derived class stating that there is no constructor that can be called without any arguments. Is it possible to inherit the constructor with arguments? Right now, I have to use Public Sub New(ByVal A As Integer) MyBase.New(A) End Sub in the derived classes. Is there any way to avoid this?

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  • Eclipse getResourceAsStream returning null

    - by Chris
    I cannot get getResourceAsStream to find a file. I have put the file in the top level dir, target dir, etc, etc and have tried it with a "/" in front as well. Everytime it returns null. Any suggestions ? Thanks. public class T { public static final void main(String[] args) { InputStream propertiesIS = T.class.getClassLoader().getResourceAsStream("test.txt"); System.out.println("Break"); } }

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  • how to test or describe endless possibilities?

    - by koen
    Example class in pseudocode: class SumCalculator method calculate(int1, int2) returns int What is a good way to test this? In other words how should I describe the behavior I need? test1: canDetermineSumOfTwoIntegers or test2: returnsSumOfTwoIntegers or test3: knowsFivePlusThreeIsEight Test1 and Test2 seem vague and it would need to test a specific calculation, so it doesn't really describe what is being tested. Yet test3 is very limited. What is a good way to test such classes?

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  • Spring Transactional Parameterized Test and Autowiring

    - by James Kingsbery
    Is there a way to get a class that extends AbstractTransactionalJUnit4SpringContexts to play nicely with JUnit's own @RunWith(Parameterized), so that fields marked as Autowired get wired in properly? @RunWith(Parameterized) public class Foo extends AbstractTransactionalJUnit4SpringContexts { @Autowired private Bar bar @Parameters public static Collection data() { // return parameters, following pattern in // http://junit.org/apidocs/org/junit/runners/Parameterized.html } @Test public void someTest(){ bar.baz() //NullPointerException } }

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  • PHP Doctrine: generation problem?

    - by ropstah
    I'm generating models from my Mysql db. It generates a foreign key collection properly, but not the other way around... Is this supposed to be 'by-design', or am i doing something wrong? pseudo code alert User: UserId pk LocationId fk //User location Location LocationId pk UserId fk //Location owner Generated code: class User() { hasMany('Location') //for locations owned by the user //BUT NOT THIS ONE: //hasOne('Location_1') //for current location of user } class Location() { hasMany('User') //for users which are on that location //AND NOT THIS ONE //hasOne('User_1') //for location owner }

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  • Design Technique: How to design a complex system for processing orders, products and units.

    - by Shyam
    Hi, Programming is fun: I learned that by trying out simple challenges, reading up some books and following some tutorials. I am able to grasp the concepts of writing with OO (I do so in Ruby), and write a bit of code myself. What bugs me though is that I feel re-inventing the wheel: I haven't followed an education or found a book (a free one that is) that explains me the why's instead of the how's, and I've learned from the A-team that it is the plan that makes it come together. So, armed with my nuby Ruby skills, I decided I wanted to program a virtual store. I figured out the following: My virtual Store will have: Products and Services Inventories Orders and Shipping Customers Now this isn't complex at all. With the help of some cool tools (CMapTools), I drew out some concepts, but quickly enough (thanks to my inferior experience in designing), my design started to bite me. My very first product-line were virtual "laptops". So, I created a class (Ruby): class Product attr_accessor :name, :price def initialize(name, price) @name = name @price = price end end which can be instantiated by doing (IRb) x = Product.new("Banana Pro", 250) Since I want my virtual customers to be able to purchase more than one product, or various types, I figured out I needed some kind of "Order" mechanism. class Order def initialize(order_no) @order_no = order_no @line_items = [] end def add_product(myproduct) @line_items << myproduct end def show_order() puts @order_no @line_items.each do |x| puts x.name.to_s + "\t" + x.price.to_s end end end that can be instantiated by doing (IRb) z = Order.new(1234) z.add_product(x) z.show_order Splendid, I have now a very simple ordering system that allows me to add products to an order. But, here comes my real question. What if I have three models of my product (economy, business, showoff)? Or have my products be composed out of separate units (bigger screen, nicer keyboard, different OS)? Surely I could make them three separate products, or add complexity to my product class, but I am looking for are best practices to design a flexible product object that can be used in the real world, to facilitate a complex system. My apologies if my grammar and my spelling are with error, as english is not my first language and I took the time to check as far I could understand and translate properly! Thank you for your answers, comments and feedback!

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  • Should an installer run automatically with a setup project

    - by Tom Brown
    I have a windows app (app.exe) build with visual studio 2008, for which I have created a custom installer class. When I run installutil.exe on app.exe, the custom installer is executed OK. I then added a setup & deployment project to create the windows installer file app.msi - this works fine but it does not run the custom installer. How is my custom installer class supposed to get linked to the setup MSI file?

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  • Injecting Annotated Bean into Regular Bean

    - by jboyd
    AppContext.xml <bean id="myBean" class="com.myapp.MyClass"> <property ref="myService"/> </bean> MyService.java @Service public class MyService { ... } This will throw an exception stating that no bean can be found for property "myService", which I understand because it can't be found in the context files, but I can autowire that field in other spring managed beans, but I need to explicitly build the bean in my context because the POJO is not editable in the scope of my project.

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  • Can I call make runtime decided method calls in Java?

    - by Catalin Marin
    I know there is an invoke function that does the stuff, I am overall interested in the "correctness" of using such a behavior. My issue is this: I have a Service Object witch contains methods which I consider services. What I want to do is alter the behavior of those services without later intrusion. For example: class MyService { public ServiceResponse ServeMeDonuts() { do stuff... return new ServiceResponse(); } after 2 months I find out that I need to offer the same service to a new client app and I also need to do certain extra stuff like setting a flag, or make or updating certain data, or encode the response differently. What I can do is pop it up and throw down some IFs. In my opinion this is not good as it means interaction with tested code and may result in un wanted behaviour for the previous service clients. So I come and add something to my registry telling the system that the "NewClient" has a different behavior. So I'll do something like this: public interface Behavior { public void preExecute(); public void postExecute(); } public class BehaviorOfMyService implements Behavior{ String method; String clientType; public void BehaviorOfMyService(String method,String clientType) { this.method = method; this.clientType = clientType; } public void preExecute() { Method preCall = this.getClass().getMethod("pre" + this.method + this.clientType); if(preCall != null) { return preCall.invoke(); } return false; } ...same for postExecute(); public void preServeMeDonutsNewClient() { do the stuff... } } when the system will do something like this if(registrySaysThereIs different behavior set for this ServiceObject) { Class toBeCalled = Class.forName("BehaviorOf" + usedServiceObjectName); Object instance = toBeCalled.getConstructor().newInstance(method,client); instance.preExecute(); ....call the service... instance.postExecute(); .... } I am not particularly interested in correctness of code as in correctness of thinking and approach. Actually I have to do this in PHP, witch I see as a kind of Pop music of programming which I have to "sing" for commercial reasons, even though I play POP I really want to sing by the book, so putting aside my more or less inspired analogy I really want to know your opinion on this matter for it's practical necessity and technical approach. Thanks

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