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  • Python: How do sets work

    - by Guy
    I have a list of objects which I want to turn into a set. My objects contain a few fields that some of which are o.id and o.area. I want two objects to be equal if these two fields are the same. ie: o1==o2 if and only if o1.area==o2.area and o1.id==o2.id. I tried over-writing __eq__ and __cmp__ but I get the error: TypeError: unhashable instance. What should I over-write?

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  • What's the right tool for this job in Google Spreadsheets?

    - by Daniel Harvey
    Is it possible to nest simple programs within a Google doc spreadsheet, similar to how you would w/Basic in Excel? Or alternatively a simple = syntax using regex, if there is a way to do that in google docs? I want to take a list of multiple names(name1, name2, name3) in a single cell from across multiple identical sheets and transpose them to another sheet within the same spreadsheet, check for duplicates and ignore capitals, etc. Is there a way to do this?

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  • SQL query for active users

    - by user344513
    This SQL query gives me today's number of users active in the last 30 days: SELECT COUNT(*) FROM table.users WHERE creation_tsz >= (now() - interval '30 days') How can I modify it to get not a single value, but a table of active users for a range of dates? Thanks, Rob

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  • DUMP in unhandled C++ exception

    - by Jorge Vasquez
    In MSVC, how can I make any unhandled C++ exception (std::runtime_error, for instance) crash my release-compiled program so that it generates a dump with the full stack from the exception throw location? I have installed NTSD in the AeDebug registry an can generate good dumps for things like memory access violation, so the matter here comes down to crashing the program correctly, I suppose. Thanks in advance.

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  • jQuery toggling divs, expand collapse all and keep first item selected when page loads

    - by hollyb
    Hi, I have a question about some functionality I'm trying to add to my jQuery to enable a button or text to expand/contract all the divs on click... and I'd like to figure out how to keep the first div open when the page loads. Here is the jQuery: (document).ready(function(){ //Hides containers on load $(".toggle_container").hide(); //Switch "Open" and "Close" state on click $("h2.trigger").toggle(function(){ $(this).addClass("active"); }, function () { $(this).removeClass("active"); }); //Slide up and down on click $("h2.trigger").click(function(){ $(this).next(".toggle_container").slideToggle("slow"); }); }); And the css: // uses a background image with an on (+) and off (-) state stacked on top of each other h2.trigger { background: url(buttonBG.gif) no-repeat;height: 46px;line-height: 46px;width: 300px;font-size: 2em;font-weight: normal;} h2.trigger a {color: #fff;text-decoration: none; display: block;} h2.active {background-position: left bottom;} .toggle_container { overflow: hidden; } .toggle_container .block {padding: 20px;} And the html <h2 class="trigger"><a href="#">Heading</a></h2> <div class="toggle_container"> <div class="block">Stuff goes here</div> </div> <h2 class="trigger"><a href="#">Heading 2</a></h2> <div class="toggle_container"> <div class="block">Stuff goes here</div> </div> So it works great and looks great. However, when I try to get it to keep the first instance open, the background image that should adjust show the (-) state doesn't change. The code I used to this was: $(".toggle_container:first").show(); So, my question is, does anyone know of an easier way to show the first instance of this as open without having to created specials rules/class for the first item? Also, any ideas about how to make an open all/close all link? Thanks!

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  • Validation library PHP / Javascript

    - by pistacchio
    Hi, could someone recommend a PHP form validation library (that works independently outside of any php framework) that apart from doing all sort of basic validation (is empty, vs regex, is email, is alphanumeric and so on) can produce javascript code (ideally to work with jquery) to validate the very same form with the very same rules client-side and hence define validation rules in a single place and have a form validated both server and client side? Thanks.

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  • Development Environment for Testing MySQL Replication

    - by Dave Morris
    Is there an easy way to setup an environment on one machine (or a VM) with MySQL replication? I would like to put together a proof of concept of MySQL replication with one Master write instance and two slave instances for reads. I can see doing it across 2 or 3 VMs running on my computer, but that would really bog down my system. I'd rather have everything running on the same VM. What's the best way to proof out scalability solutions like this in a local dev environment? Thanks for your help, Dave

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  • coco2d tab view for multi player

    - by godzilla
    I am currently developing a card game for the iphone using cocas2d. I am currently in need of a tab view with each tab representing a player and his / her set of cards. Currently i have a single view representing just one player. It seems as though cocas2s is not really built do have multiple views, to do this and it would require some serious amount of hacking around with the code. What would be the most efficient way to accomplish this?

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  • django deployment apache

    - by Uszy Wieloryba
    I would like to create a python script, which will: Create a django project in the current directory. Fix settings.py, urls.py. Do syncdb Install new apache instance listening on specific port (command line argument), with WSGI configured to serve my project. I can't figure out how to do point 3. EDIT: Peter Rowell: I need the solution for both Linux and Windows I have root access This is a dedicated host Apache only

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  • More than one emacs terminal

    - by Mad Wombat
    I am getting more and more used to doing everything from inside emacs, but it seems that eshell, shell and term will only run one instance each. Is there a way to run multiple terminals (preferably term) inside emacs?

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  • Using jquery to prevent resubmitting form

    - by Tony
    I use jquery's .submit() to intercept user's submit event, however I found a problem. When the user single click the submit button, the form is submitted normally, but if a user deliberately fast click it multiple times, it will submit multiple times, which will cause duplicated data in the database. What's the solution for this kind of problem ?

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  • Tool to recursively search all files in a directory for a string [closed]

    - by routeNpingme
    Possible Duplicate: Tools to search for strings inside files without indexing Before I make one, any good tools out there for free/cheap that will recurse through all files in a directory and search for a text string in them? Need to find an instance of a string in any configuration files laying around. Kind of like a Windows Search "find files that contain..." on steroids? Oops - This is pretty much a duplicate question, sorry, didn't find the other one before

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  • How Long Can Same-Page Anchor Links (#) Be?

    - by Volomike
    What is the maximum number of characters that a same-page anchor tag link can be on all mainstream platform browsers released from IE6 on up? For instance, a link like: http://example.com/#a789c4d8ecb0ec2201444bfa64b04696aa2bbaa41eb331535d1dd6d219558a02968d5af97ae74359973163337ef9b09c65dd70d40c3c79a4169355ea92db45e21fe30550dce4987987237652a347b97759f2753b412ee50d4121d0f6382580b5a62d1e02921c39c252c5e4731e38fc295ad6abcb22613513c4fd7599ab10d3f9c970b9eb3ddf5b2cf233af25005298590ce798b28092cecdc6756c8205e9a0650826e42a184267d0bfb5e3d7b3d1c25e324fe6329cf7681ffae7c01c86d4a70 Note the # symbol above. Note I'm using XHTML transitional, if that matters any.

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  • Dispose a Web Service Proxy class?

    - by Matt
    When you create and use a Web Service proxy class in the ASP.Net framework, the class ultimately inherits from Component, which implements IDisposable. I have never seen one example online where people dispose of a web proxy class, but was wondering if it really needs to be done. When I call only one method, I normally wrap it in a using statement, but if I have a need to call it several times throughout the page, I might end up using the same instance, and just wondered what the ramifications are of not disposing it.

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  • when does static member gets memory.

    - by vaibhav
    I have a class which have a static member. As I understand all static members are common for all instance of the class. So it means static members would get memory only once. Where is this memory is allocated (Stack or Heap) and when this memory get allocated.

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  • Exception when creating an activity: Could not select item Parcel unable to marshal value

    - by user341652
    Hi, I am trying to call an Activity from another instance of the activity. The code is supposed to be a simple file browser (part of a larger application). I am using a ListActivity, and when an item (such as a folder) is selected, it is supposed to open it up in the new Activity. I have a feeling it is a problem with the AndroidManifest (which just has the basic tag). Any assistance would be appreciated. Thanks, Steve

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  • iphone how to customize UITableViewCell cell.textlabel and cell.detailtextlabel programmatically

    - by Prerak
    Hi! In my iPhone App In table view cell I want to dispaly one main title and 5 subtitlessubtitles suppose item1 as main title and item2 , item3 , item4 , item5 and item6 as subtitles, for that i have saperate two arrays for passing the values in table view cell one for cell.textLabel.text= second for cell.detailTextLabel.text now I want the flexibility to make item2 as maintitle and want to add item1 to subtitle How can I set title and subtitle programmatically from single array? and any of them as Please Help and Suggest, Thank You.

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  • int datatype in 64bit JVM. Is it more "inefficient" than long?

    - by Zwei Steinen
    I heard that using shorts on 32bit system is just more inefficient than using ints. Is this the same for ints on a 64bit system? Python recently(?) basically merged ints with long and has basically a single datatype long, right? If you are sure that your app. will only run on 64bit then, is it even conceivable (potentially a good idea) to use long for everything in Java?

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