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  • serializing JSON files with newlines in Python

    - by user248237
    I am using json and jsonpickle sometimes to serialize objects to files, using the following function: def json_serialize(obj, filename, use_jsonpickle=True): f = open(filename, 'w') if use_jsonpickle: import jsonpickle json_obj = jsonpickle.encode(obj) f.write(json_obj) else: simplejson.dump(obj, f) f.close() The problem is that if I serialize a dictionary for example, using "json_serialize(mydict, myfilename)" then the entire serialization gets put on one line. This means that I can't grep the file for entries to be inspected by hand, like I would a CSV file. Is there a way to make it so each element of an object (e.g. each entry in a dict, or each element in a list) is placed on a separate line in the JSON output file? thanks.

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  • Is it safe to use Select Top and Delete Top in sequence?

    - by Rob Nicholson
    I often write T-SQL loops that look like this While Exists (Select * From #MyTable) Begin Declare @ID int, @Word nvarchar(max) Select Top 1 @ID=ID, @Word=[Word] From #MyTable -- Do something -- Delete #MyTable Where ID=@ID End Works a treat but I noticed the new Delete Top function which would be useful when #MyTable is just a list of strings. In this case, would this work: While Exists (Select * From #MyTable) Begin Declare @Word nvarchar(max) Select Top 1 @Word=[Word] From #MyTable -- Do something -- Delete Top(1) #MyTable End Well yes, it works in my test script but is this safe? Will Select Top 1 and Delete Top(1) always refer to the same record or is Top a little more vague. Thanks, Rob.

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  • Help needed inorder to avoid recursion

    - by Srivatsa
    Hello All I have a method, which gives me the required number of Boxes based on number of devices it can hold.Currently i have implemented this logic using recursion private uint PerformRecursiveDivision(uint m_oTotalDevices,uint m_oDevicesPerBox, ref uint BoxesRequired) { if (m_oTotalDevices< m_oDevicesPerBox) { BoxesRequired = 1; } else if ((m_oTotalDevices- m_oDevicesPerBox>= 0) && (m_oTotalDevices- m_oDevicesPerBox) < m_oDevicesPerBox) { //Terminating condition BoxesRequired++; return BoxesRequired; } else { //Call recursive function BoxesRequired++; return PerformRecursiveDivision((m_oTotalDevices- m_oDevicesPerBox), m_oDevicesPerBox, ref BoxesRequired); } return BoxesRequired; } Is there any better method to implement the same logic without using recursion. Cos this method is making my application very slow for cases when number of devices exceeds 50000. Thanks in advance for your support Constant learner

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  • Clear default values using onsubmit

    - by Thomas
    I need to clear the default values from input fields using js, but all of my attempts so far have failed to target and clear the fields. I was hoping to use onSubmit to excute a function to clear all default values (if the user has not changed them) before the form is submitted. <form method='get' class='custom_search widget custom_search_custom_fields__search' onSubmit='clearDefaults' action='http://www.example.com' > <input name='cs-Price-2' id='cs-Price-2' class='short_form' value='Min. Price' /> <input name='cs-Price-3' id='cs-Price-3' class='short_form' value='Max Price' /> <input type='submit' name='search' class='formbutton' value=''/> </form> How would you accomplish this?

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  • Disable debug output in libxml2 and xmlsec

    - by ereOn
    Hi, In my software, I use libxml2 and xmlsec to manipulate (obviously) XML data structures. I mainly use XSD schema validation and so far, it works well. When the data structure input by the client doesn't match the XSD schema, libxml2 (or xmlsec) output some debug strings to the console. Here is an example: Entity: line 1: parser error : Start tag expected, '<' not found DUMMY<?xml ^ While those strings are useful for debugging purposes, I don't want them to appear and polute the console output in the released software. So far, I couldn't find an official way of doing this. Do you know how to suppress the debug output or (even better) to redirect it to a custom function ? Many thanks.

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  • sscanf + c99 not working on some platforms ?

    - by Jane
    When I compile a simple Hello World! program that uses the sscanf function on my local Debian lenny x64, it works. But when I upload the same program to the server running CentOS x86, it will not work. If I do not use sscanf, then the program works on both computers. gcc -std=c99 -O2 -pipe -m32 If I compile it with sscanf but without -std=c99, then it works on both computers. gcc -O2 -pipe -m32 What is the problem with sscanf and c99 on CentOS x86 ? I thought that compiling with the -m32 flag would work on all Linuxes ? (I have limited access to the CentOS server, so I do not have access to error messages.)

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  • Can I use ido-completing-read instead of completing-read everywhere?

    - by haxney
    I'm a big fan of ido-mode, so much so that I would like to use it for things like describe-function or find-tag and so on, without having to write something like in "Can I get ido-mode-style completion for searching tags in Emacs?" for each one. Both (defalias completing-read ido-completing-read) and (setf 'completing-read 'ido-completing-read) don't work, at least partly because ido-completing-read calls completing-read in its body, so any simple redefinition would result in infinite recursion. In theory, it should be possible, since the first line of the docstring for ido-completing-read is "Ido replacement for the built-in completing-read." I've looked around a bit and can't seem to find anyone else who has attempted or succeeded at it. I realize that Icicles [2] probably provides something like this, and I may end up going with that anyway, but it is a bit more of a plunge than I care to take right now. Thanks for any help.

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  • How to insert random characters in a text file at random positions using C

    - by Shantanu Gupta
    I m writing a program to insert random characters in a text file in between the text so that no one can understand this text. eg. suppose this is my text file a.txt with content as "Hi my name is abc. I like to play XYZ" Now i will cal a random function in C and get the 26 modulus random no to get the character to be inserted at random position. eg. "Him mayn mae lkd". etc How can i insert this random character in between the file.

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  • What are Windows code pages?

    - by Mike D
    I'm trying to gain a basic understanding of what is meant by a Windows code page. I kind of get the feeling it's a translation between a given 8 bit value and some 'abstraction' for a given character graphic. I made the following experiment. I created a "" character literal with two versions of the letter u with an umlaut. One created using the ALT 129 (uses code page 437) value and one using the ALT 0252 (uses code page 1252) value. When I examined the literal both characters had the value 252. Is 252 the universal 8 bit abstraction for u with an umlaut? Is it the Unicode value? Aside from keyboard input are there any library routines or system calls that use code pages? For example is there a function to translate a string using a given code table (as above for the ALT 129 value)?

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  • Backbone.js not registering Model.hasChanged event

    - by Brian M. Hunt
    Hello, I'm trying to get a View in Backbone.js to save when there's a 'change' event if (and only if) the data has changed. Long story short, I've a 'change' event set on the View that calls this: function changed_event() { log.debug("Before: " + this.model.get('name')) // not 'contrived!' this.model.set({'name': 'contrived!'}); log.debug("After: " + this.model.get('name')) // 'contrived!' if (this.model.hasChanged()) { alert("This is never called."); } } I'd like to know why the model.hasChanged() is false when clearly the model has been changed. I'm not sure what other information is necessary, but if there is more information that may be helpful please comment and I'll elaborate. Thank you for reading.

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  • Jquery click() not behaving like user click

    - by rpiontek
    I have searched for a solution to this for the last several hours but to no avail. When I click on a button that has a return false in OnClientClick, no postback occurs to the server. When I use jquery to trigger the click function of the button, OnClientClick fires first, but regardless of the return value, a postback occurs. Here's a simple sample... So, in this example, when Button1 is clicked normally, no postback occurs. When Button2 is clicked, a postback always occurs. Is this a bug or intended behavior?

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  • GMP variable's bit size..

    - by kishorebjv
    How to know the size of a declared variable in GMP??or how can we decide the size of an integer in GMP? mpz_random(temp,1); in manual it is given that this function allocates 1limb(=32bits for my comp) size to the "temp".... but it is having 9 digit number only.. SO i dont think that 32 bit size number holds only 9 digits number.. So please help me to know the size of integer variable in GMP .. thanks in adv..

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  • How to add Points and Markers Dynamically to Google Maps from JSF

    - by Omer
    I have an app in J2EE with a couple of projects. Got my .war project that communicates with a EJB business project which has access to some Data. I have an entity which has some information about places, and I want to show a collection of those places in a single map on a JSF page. I have a Collection of coordinates to be assigned as points on a polyline in Google maps, and I've got this collection as a return of a java function of the jsf page, but I dont know how to get this collection from jsf and then how to make the map work I'll be very greatful if someone can give me some jsf code as an example. (and if someone knows how to set the autoReshape attribute for maps in jsf using javascript, please tell me the secret!!!!) Thanks a lot.

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  • can't get true height/width of object in chrome

    - by Cinaird
    I have a question, if i set a image height in css and try to get height/width i get different results in different browsers. Is there a way to get the same dimension in all browsers? You can find a live example here and the concept is like this: CSS: img{ height:100px; } Script: $(document).ready(function(){ $("#text").append($("#img_0").attr("height")); $("#text").append($("#img_0").attr("width")); }); Output Firefox: img height: 100 img width: 150 Output Chrome: img height: 100 img width: 0 Output Chrome: img height: 100 img width: 93? i have tried this from StackOverflow: stackoverflow.com/questions/1873419/jquery-get-height-width but still get the same result Any one know a good solution?

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  • Problem with jQuery and ASP.Net MVC

    - by robert_d
    I have a problem with jQuery, here is how my web app works Search web page which contains a form and jQuery script posts data to Search() action in Home controller after user clicks button1 button. Search.aspx: <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<GLSChecker.Models.WebGLSQuery>" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> Title </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <h2>Search</h2> <% Html.EnableClientValidation(); %> <% using (Html.BeginForm()) {%> <fieldset> <div class="editor-label"> <%: Html.LabelFor(model => model.Url) %> </div> <div class="editor-field"> <%: Html.TextBoxFor(model => model.Url, new { size = "50" } ) %> <%: Html.ValidationMessageFor(model => model.Url) %> </div> <div class="editor-label"> <%: Html.LabelFor(model => model.Location) %> </div> <div class="editor-field"> <%: Html.TextBoxFor(model => model.Location, new { size = "50" } ) %> <%: Html.ValidationMessageFor(model => model.Location) %> </div> <div class="editor-label"> <%: Html.LabelFor(model => model.KeywordLines) %> </div> <div class="editor-field"> <%: Html.TextAreaFor(model => model.KeywordLines, 10, 60, null)%> <%: Html.ValidationMessageFor(model => model.KeywordLines)%> </div> <p> <input id ="button1" type="submit" value="Search" /> </p> </fieldset> <% } %> <script src="../../Scripts/jquery-1.4.1.js" type="text/javascript"></script> <script type="text/javascript"> jQuery("#button1").click(function (e) { window.setInterval(refreshResult, 5000); }); function refreshResult() { jQuery("#divResult").load("/Home/Refresh"); } </script> <div id="divResult"> </div> </asp:Content> [HttpPost] public ActionResult Search(WebGLSQuery queryToCreate) { if (!ModelState.IsValid) return View("Search"); queryToCreate.Remote_Address = HttpContext.Request.ServerVariables["REMOTE_ADDR"]; Session["Result"] = null; SearchKeywordLines(queryToCreate); Thread.Sleep(15000); return View("Search"); }//Search() After button1 button is clicked the above script from Search web page runs Search() action in controller runs for longer period of time. I simulate this in testing by putting Thread.Sleep(15000); in Search()action. 5 sec. after Submit button was pressed, the above jQuery script calls Refresh() action in Home controller. public ActionResult Refresh() { ViewData["Result"] = DateTime.Now; return PartialView(); } Refresh() renders this partial <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" % <%= ViewData["Result"] % The problem is that in Internet Explorer 8 there is only one request to /Home/Refresh; in Firefox 3.6.3 all requests to /Home/Refresh are made but nothing is displayed on the web page. I would be grateful for helpful suggestions.

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  • Why is OnDragEnter not called?

    - by Harvey
    I have added the COleDropTarget variable to my view class, Registered it in the OnCreate(), which is being called at startup. I added the OnDragEnter and OnDrop virtual functions (not the others yet, as OnDragLeave). But they are not called when I drag (or drop) a piece of text over them. I just happened to think about the fact that I had already implemented the dropfiles function to the same window. Is this preventing the text drag? What else do I need? TIA, Harvey

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  • HTML + CSS dynamic render in flash?

    - by Ole Jak
    I have HTML + CSS text. I need some lib with simple function like "Render String Var conteining HTML" So no external files (like in flash lib called HTMLwraper you just have to play your SWF on top of HTML). dinamic! I give it string it renders It into some conteiner (not as a bitmab but as if it was real HTML dynamically rendered in flash). (And I need real HTML + CSS support not what normal rich text block gives us) I am going to use it in with Flex (Flash Builder) so I like MXML component model but even pure flash AS3 will workout. It should be Free and Opensource (any license like GPL, LGPL etc will be ok). So Is out there such flash\flex library for HTML + CSS dynamic rendering (rfom given String or XML)?

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  • Link to open jQuery Accordion

    - by pioneer
    I'm trying to open an accordion div from an external link. I see the "navigation: true" option but I'm not sure how to implement it. Do you give each div an id and call the link like this? http://domain.com/link#anchorid I'm new to jQuery so bear with me. Here is the code I'm using if it helps. <script type="text/javascript"> $(function(){ $("#accordion").accordion({ header: "h2", autoHeight: false, animated: false, navigation: true }); }); </script> <div id="accordion"> <div> <h2><a href="#">Services</a></h2> <div class="services"> <p>More information about all of these services</p> </div> </div>

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  • Trouble using eval() with cython

    - by Peter Stewart
    I was trying to speed up some code, and then I tried compiling a class and a function using cython and WOW! I havn't measured it yet but it looks at least 10x faster. I first looked at cython just two days ago, I'm very impressed! However, I can't get eval() to work. def thefirst(int a): d = eval('1+2+a') return d I compile this to module1.pyd file and call it with the python file: from module1 import thefirst x = thefirst(2) print x This returns: NameError: name 'a' is not defined. All help is appreciated.

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  • Facebook API friends_get is extremely slow

    - by IkimashoZ
    I have a PHP application running in iFrame mode. I am rendering an <fb:multi-friend-selector condensed="true"> inside of <fb:serverfbml> tags. This is inside a PHP file that calls a function that gets a list of user IDs using $facebook->api_client->friends_get();. The multi-friend selector renders just fine, but, when I leave the friend_get() call uncommented, the page takes between 15-20 seconds to load (confirmed with Firebug)! The goal is to limit the number of users displayed in the selector by building a list of user ids not to display, for use in the friend selector's exclude_ids parameter. And since it's "exclude_ids" and not "include_ids", I can't think of a way of getting around this api call. It seems to me there must be something I can do to make the api call faster, because I've seen friend selectors that load much more quickly.

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  • ruby rails loop causes server freeze

    - by Darkerstar
    Hi all: I am working on a Ruby on Rails project on Windows. I have Ruby 1.86 and Rails 2.35 installed. Everything is fine until I tried to implement a comet process. I have the following code written to respond to a long poll javascript request. But everytime this function is called, it will hang the whole rails server, no second request can get in, until the timeout. (I know there is juggernaut, but I like to implement one myself first :) Is this due to my server setup? The project will be deployed on a linux server with Ngix and Passenger setup, will it suffer the same problem? def comet_hook timeout(5) do while true do key = 'station_' + station_id.to_s + '_message_lastwrite' if Rails.cache.exist?(key) @cache_time = DateTime.parse(Rails.cache.read(key)) if @cache_time > hook_start @messages = @station.messages_posted_after(hook_start) hook_start = @cache_time break end end end ... end Also with Rails memory store cache, I keep getting "cannot modify frozen object" error, so the above script only worked for me when I switched to File cache. :(

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  • jtabbedpane different sized tabs

    - by Eric
    hi, im making a search function for a database that uses a jtabbedpane with one tab for a quick search, and one for an advanced search. the advanced search has quite a few more fields, so it needs to be larger, but i dont want the whole window to always be at the largest size for aesthetic reasons. i have added a change listener to the pane, and tried resizing the pane based on which tab it is, and the code executes when the tab is clicked, but does nothing. ive tried using tabbedSearchPane.setSize() followed by tabbedSearchPane.validate(), as well as resizing components around it using setSize+validate, and nothing seems to do anything. i really just need to know how to ACTUALLY change the size of a jtabbedpane.

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  • OAuth request token for an installed application

    - by Andres
    Hi all I'm trying to use/understand Google request token mechanism. I intend to use it for an application I've start to develop to access Orkut data using OpenSocial API. I read this document that explains the steps to obtain a token for an installed application. This document tells you to use the OAuthGetRequestToken method from Google OAuth API to acquire a request token . Accessing the manual of this function (available here). But the parameter oauth_consumer_key, which is required, asks for the "Domain identifying the third-party web application", but I don,t have a domain, it is an installed application. So my question is, what should I put in this parameter in that case? I'm using oauth_playground to run my tests. Thx

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  • How to display multiple cell entries individually from a MySQL database and using PHP

    - by Jake
    I have a column called post_tags where there is sometimes one tag entry and sometimes multiple tags stored. These are separated by * symbols. I want to display these out to the screen one by one. If there were just one item inside the cell I would have used: $query = mysql_query("SELECT post_tags FROM posts WHERE id=$id"); while ($result = mysql_fetch_assoc($query)) { $result['post_tags']; } But how can I display each entry individually when there are multiple ones in one cell (is this what the explode function is for)?

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  • NUnit does not capture output of std::cerr

    - by Richard
    I have an nunit Test in C#, that calls a C# wrapper of a function in a C++ DLL. The C++ code uses std::cerr to output various messages. These messages cannot be redirected using nunit-console /out /err or /xml switch. In nunit (the GUI version) the output does not appear anywhere. I would like to be able to see this output in nunit (GUI version). Ideally I would like to be able to access this output in the Test. Thanks for any help.

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