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  • How to access an encrypted INI file from C on an embedded system with little RAM

    - by Mawg
    I want to encrypt an INI file using a Delphi program on a Windows PC. Then I need to decrypt & access it in C on an embedded system with little RAM. I will do that once & fetch all info; I will not be consutinuously accessing the INI file whenever my program needs data from the file. Any advice as to which encryption to use? Nothing too heavyweight, just good enough for "Security through obscurity" and FOSS for both Delphi & C. And how can I decrypt, get all the info from the INI file - using as little RAM as possible, and then free any allocated RAM? I hope that someone can help. [Update] I am currently using an Atmel UC3, although I am not sure if that will be the final case. It has 512kB falsh & 128kB RAM. For an INI file, I am talking of max 8 sections, with a total of max 256 entries, each max 8 chars. I chose INI (but am not married to it), because i have had major problems in the past when the format of a data fiel changes, no matter whether binary, or text. For tex, I prefer the free format of INI (on PC), but suppose I could switch to line_1=data_1, line_2=data_2 and accept that if I add new fields in future software erleases they must come at the end, even if it is not pretty when read directly by humans. I suppose if I choose a fixed format text file then I never need get more than one line into RAM at a time ...

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  • How to distinguish doc, ppt, xls files, without looking at file extension

    - by Shelby. S
    So I was wondering how would you differentiate ppt, xls and doc files from each other in linux regardless of extensions. I tried 'file' but from the looks of it, all of MSOffice files are categorized under the same file type. Similarly I'm having trouble with docx, xlsx and pptx files, since they're essentially all zip files containing a bunch of xml. I also tried a python script importing the magic module, but no go. I'm trying to identify the actual file for a sandbox analysis. And for this specific purpose I need to find the actual file type in order to run it in the sandbox vm (the Windows vm runs everything by extension). Let's say my sample file is labeled as try.exe, but in reality it's just a doc file. My script will rename it as try.exe.doc, which would work fine for doc files. But since linux identifies all MSOffice files as simple DOC files then there's no way to identify ppt or xls files. As a result the sandbox wont' analyze the sample correctly.

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  • Create a batch file to copy and rename file

    - by Estate Master
    I have little to no experience in writing batch files. I need to write one that copies a file to a new folder and renames it At the moment, my batch file consists of only this command: COPY ABC.PDF \\Documents As you can see, it only copies the file ABC.pdf to the network folder 'Documents'. However i need to change this so it renames the file ABCxxx.pdf, where xxx is a text variable that i would like to set somewhere in the batch file. For example, if xxx = "_Draft", then file would be renamed ABC_Draft.pdf after it is copied. Thanks

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  • How to update the filename of a Django's FileField instance ?

    - by pierre-guillaume-degans
    Hello, Here a simple django model: class SomeModel(models.Model): title = models.CharField(max_length=100) video = models.FileField(upload_to='video') I would like to save any instance so that the video's file name would be a valid file name of the title. For example, in the admin interface, I load a new instance with title "Lorem ipsum" and a video called "video.avi". The copy of the file on the server should be "Lorem Ipsum.avi" (or "Lorem_Ipsum.avi"). Thank you :)

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  • how to read a static file in .py file using django ..

    - by zjm1126
    this is my error code: text = open('/media/a.txt', 'rb').read() and my perplexed is: when i use this : text = open('a.txt', 'rb').read() it can be running but when i put the 'a.txt' to the 'media' folder, i can't running , why ? thanks IOError at / [Errno 13] file not accessible: '/media/a.txt'

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  • Python: Huge file reading by using linecache Vs normal file access open()

    - by user335223
    Hi, I am in a situation where multiple threads reading the same huge file with mutliple file pointers to same file. The file will have atleast 1 million lines. Eachline's length varies from 500 characters to 1500 characters. There won't "write" operations on the file. Each thread will start reading the same file from different lines. Which is the efficient way..? Using the Python's linecache or normal readline() or is there anyother effient way?

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  • ASP.NET Hosting :: ASP.NET File Upload Control

    - by mbridge
    The asp.net FileUpload control allows a user to browse and upload files to the web server. From developers perspective, it is as simple as dragging and dropping the FileUpload control to the aspx page. An extra control, like a Button control, or some other control is needed, to actually save the file. <asp:FileUploadID="FileUpload1"runat="server"/> <asp:ButtonID="B1"runat="server"Text="Save"OnClick="B1_Click"/> By default, the FileUpload control allows a maximum of 4MB file to be uploaded and the execution timeout is 110 seconds. These properties can be changed from within the web.config file’s httpRuntime section. The maxRequestLength property determines the maximum file size that can be uploaded. The executionTimeout property determines the maximum time for execution. <httpRuntimemaxRequestLength="8192"executionTimeout="220"/> From code behind, the mime type, size of the file, file name and the extension of the file can be obtained. The maximum file size that can be uploaded can be obtained and modified using the System.Web.Configuration.HttpRuntimeSection class. Files can be alternatively saved using the System.IO.HttpFileCollection class. This collection class can be populated using the Request.Files property. The collection contains HttpPostedFile class which contains a reference to the class. using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.IO; using System.Configuration; using System.Web.Configuration;   namespace WebApplication1 {     public partial class WebControls : System.Web.UI.Page     {         protected void Page_Load(object sender, EventArgs e)         {         }           //Using FileUpload control to upload and save files         protected void B1_Click(object sender, EventArgs e)         {             if (FileUpload1.HasFile && FileUpload1.PostedFile.ContentLength > 0)             {                 //mime type of the uploaded file                 string mimeType = FileUpload1.PostedFile.ContentType;                   //size of the uploaded file                 int size = FileUpload1.PostedFile.ContentLength; // bytes                   //extension of the uploaded file                 string extension = System.IO.Path.GetExtension(FileUpload1.FileName);                                  //save file                 string path = Server.MapPath("path");                                 FileUpload1.SaveAs(path + FileUpload1.FileName);                              }             //maximum file size allowed             HttpRuntimeSection rt = new HttpRuntimeSection();             rt.MaxRequestLength = rt.MaxRequestLength * 2;             int length = rt.MaxRequestLength;                     //execution timeout             TimeSpan ts = rt.ExecutionTimeout;             double secomds = ts.TotalSeconds;           }           //Using Request.Files to save files         private void AltSaveFile()         {             HttpFileCollection coll = Request.Files;             for (int i = 0; i < coll.Count; i++)             {                 HttpPostedFile file = coll[i];                   if (file.ContentLength > 0)                     ;//do something             }         }     } }

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  • javascript replace text with images problem

    - by Amit Malhotra
    I'm extremely new to JS and have this code that I'm trying to tweak. WHen I was adding the array, I had tested it with only a couple of items and it was working fine, now it just doesn't work, and I can't figure out what is wrong with it!! Basically, I'm trying to change every instance of a card type with an image on a webpage Here's the code: window.onload = function(){ var cardname = new Array(); cardname[0] = "Ace of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_a.svg/88px-Ornamental_h_a.svg.png' />"; cardname[1] = "2 of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_2.svg/88px-Ornamental_h_2.svg.png' />"; cardname[2] = "3 of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_3.svg/88px-Ornamental_h_3.svg.png' />"; cardname[3] = "4 of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_4.svg/88px-Ornamental_h_4.svg.png' />"; cardname[4] = "5 of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_5.svg/88px-Ornamental_h_5.svg.png' />"; cardname[5] = "6 of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_6.svg/88px-Ornamental_h_6.svg.png' />"; cardname[6] = "7 of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_7.svg/88px-Ornamental_h_7.svg.png' />"; cardname[7] = "8 of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_8.svg/88px-Ornamental_h_8.svg.png' />"; cardname[8] = "9 of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_9.svg/88px-Ornamental_h_9.svg.png' />"; cardname[9] = "10 of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/9/91/Ornamental_h_10.svg/88px-Ornamental_h_10.svg.png' />"; cardname[10] = "Jack of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_j.svg/88px-Ornamental_h_j.svg.png' />"; cardname[11] = "Queen of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_q.svg/88px-Ornamental_h_q.svg.png' />"; cardname[12] = "King of Hearts^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_h_k.svg/88px-Ornamental_h_k.svg.png' />"; cardname[13] = "Ace of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_a.svg/88px-Ornamental_s_a.svg.png' />"; cardname[14] = "2 of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_2.svg/88px-Ornamental_s_2.svg.png' />"; cardname[15] = "3 of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_3.svg/88px-Ornamental_s_3.svg.png' />"; cardname[16] = "4 of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_4.svg/88px-Ornamental_s_4.svg.png' />"; cardname[17] = "5 of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_5.svg/88px-Ornamental_s_5.svg.png' />"; cardname[18] = "6 of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_6.svg/88px-Ornamental_s_6.svg.png' />"; cardname[19] = "7 of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_7.svg/88px-Ornamental_s_7.svg.png' />"; cardname[20] = "8 of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_8.svg/88px-Ornamental_s_8.svg.png' />"; cardname[21] = "9 of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_9.svg/88px-Ornamental_s_9.svg.png' />"; cardname[22] = "10 of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_10.svg/88px-Ornamental_s_10.svg.png' />"; cardname[23] = "Jack of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/78/Ornamental_s_j.svg/88px-Ornamental_s_j.svg.png' />"; cardname[24] = "Queen of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_q.svg/88px-Ornamental_s_q.svg.png' />"; cardname[25] = "King of Spades^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_s_k.svg/88px-Ornamental_s_k.svg.png' />"; cardname[26] = "Ace of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_a.svg/88px-Ornamental_c_a.svg.png' />"; cardname[27] = "2 of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_2.svg/88px-Ornamental_c_2.svg.png' />"; cardname[28] = "3 of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_3.svg/88px-Ornamental_c_3.svg.png' />"; cardname[29] = "4 of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_4.svg/88px-Ornamental_c_4.svg.png' />"; cardname[30] = "5 of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_5.svg/88px-Ornamental_c_5.svg.png' />"; cardname[31] = "6 of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_6.svg/88px-Ornamental_c_6.svg.png' />"; cardname[32] = "7 of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_7.svg/88px-Ornamental_c_7.svg.png' />"; cardname[33] = "8 of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_8.svg/88px-Ornamental_c_8.svg.png' />"; cardname[34] = "9 of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_9.svg/88px-Ornamental_c_9.svg.png' />"; cardname[35] = "10 of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_10.svg/88px-Ornamental_c_10.svg.png' />"; cardname[36] = "Jack of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_j.svg/88px-Ornamental_c_j.svg.png' />"; cardname[37] = "Queen of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_q.svg/88px-Ornamental_c_q.svg.png' />"; cardname[38] = "King of Clubs^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_c_k.svg/88px-Ornamental_c_k.svg.png' />"; cardname[39] = "Ace of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_a.svg/88px-Ornamental_d_a.svg.png' />"; cardname[40] = "2 of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_2.svg/88px-Ornamental_d_2.svg.png' />"; cardname[41] = "3 of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_3.svg/88px-Ornamental_d_3.svg.png' />"; cardname[42] = "4 of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_4.svg/88px-Ornamental_d_4.svg.png' />"; cardname[43] = "5 of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_5.svg/88px-Ornamental_d_5.svg.png' />"; cardname[44] = "6 of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_6.svg/88px-Ornamental_d_6.svg.png' />"; cardname[45] = "7 of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_7.svg/88px-Ornamental_d_7.svg.png' />"; cardname[46] = "8 of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_8.svg/88px-Ornamental_d_8.svg.png' />"; cardname[47] = "9 of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_9.svg/88px-Ornamental_d_9.svg.png' />"; cardname[48] = "10 of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_10.svg/88px-Ornamental_d_10.svg.png' />"; cardname[49] = "Jack of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_j.svg/88px-Ornamental_d_j.svg.png' />"; cardname[50] = "Queen of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_q.svg/88px-Ornamental_d_q.svg.png' />"; cardname[51] = "King of Diamonds^<img src='http://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Ornamental_d_k.svg/88px-Ornamental_d_k.svg.png' />"; var j, k, findit, part, page, repl; var page = document.body.innerHTML; for(var i=0; i<cardname.length; i++){ part = cardname[i].split("^"); findit = part[0]; repl = part[1]; while (page.indexOf(findit) >=0){ var j = page.indexOf(findit); var k = findit.length; page = page.substr(0,j) + repl + page.substr(j+k); } } document.body.innerHTML = page; } any help would be appreciated to figure out why this code is not working!

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  • best practices question: How to save a collection of images and a java object in a single file? File

    - by Richard
    Hi all, I am making a java program that has a collection of flash-card like objects. I store the objects in a jtree composed of defaultmutabletreenodes. Each node has a user object attached to it with has a few string/native data type parameters. However, i also want each of these objects to have an image (typical formats, jpg, png etc). I would like to be able to store all of this information, including the images and the tree data to the disk in a single file so the file can be transferred between users and the entire tree, including the images and parameters for each object, can be reconstructed. I had not approached a problem like this before so I was not sure what the best practices were. I found XLMEncoder (http://java.sun.com/j2se/1.4.2/docs/api/java/beans/XMLEncoder.html) to be a very effective way of storing my tree and the native data type information. However I couldn't figure out how to save the image data itself inside of the XML file, and I'm not sure it is possible since the data is binary (so restricted characters would be invalid). My next thought was to associate a hash string instead of an image within each user object, and then gzip together all of the images, with the hash strings as the names and the XMLencoded tree in the same compmressed file. That seemed really contrived though. Does anyone know a good approach for this type of issue? THanks! Thanks!

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  • Facebook Connect for iPhone: How to upload an image (UIImage) to user's wall without having to use j

    - by Crowem
    Is there any way to upload an image (UIImage) directly from an iPhone app to a user's wall/feed? All the samples I see are either using a json-embedded link or they use the photos.upload call with album ID (aid) which results in the user getting the image in his photo album(s). What I want to do is to upload an (UI)Image created (by the user) inside an iPhone app and upload to his/her wall. Is this possible? Sample code would be highly appreciated.

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  • Implementing a popularity algorithm in Django

    - by TheLizardKing
    I am creating a site similar to reddit and hacker news that has a database of links and votes. I am implementing hacker news' popularity algorithm and things are going pretty swimmingly until it comes to actually gathering up these links and displaying them. The algorithm is simple: Y Combinator's Hacker News: Popularity = (p - 1) / (t + 2)^1.5` Votes divided by age factor. Where` p : votes (points) from users. t : time since submission in hours. p is subtracted by 1 to negate submitter's vote. Age factor is (time since submission in hours plus two) to the power of 1.5.factor is (time since submission in hours plus two) to the power of 1.5. I asked a very similar question over yonder http://stackoverflow.com/questions/1964395/complex-ordering-in-django but instead of contemplating my options I choose one and tried to make it work because that's how I did it with PHP/MySQL but I now know Django does things a lot differently. My models look something (exactly) like this class Link(models.Model): category = models.ForeignKey(Category) user = models.ForeignKey(User) created = models.DateTimeField(auto_now_add = True) modified = models.DateTimeField(auto_now = True) fame = models.PositiveIntegerField(default = 1) title = models.CharField(max_length = 256) url = models.URLField(max_length = 2048) def __unicode__(self): return self.title class Vote(models.Model): link = models.ForeignKey(Link) user = models.ForeignKey(User) created = models.DateTimeField(auto_now_add = True) modified = models.DateTimeField(auto_now = True) karma_delta = models.SmallIntegerField() def __unicode__(self): return str(self.karma_delta) and my view: def index(request): popular_links = Link.objects.select_related().annotate(karma_total = Sum('vote__karma_delta')) return render_to_response('links/index.html', {'links': popular_links}) Now from my previous question, I am trying to implement the algorithm using the sorting function. An answer from that question seems to think I should put the algorithm in the select and sort then. I am going to paginate these results so I don't think I can do the sorting in python without grabbing everything. Any suggestions on how I could efficiently do this? EDIT This isn't working yet but I think it's a step in the right direction: from django.shortcuts import render_to_response from linkett.apps.links.models import * def index(request): popular_links = Link.objects.select_related() popular_links = popular_links.extra( select = { 'karma_total': 'SUM(vote.karma_delta)', 'popularity': '(karma_total - 1) / POW(2, 1.5)', }, order_by = ['-popularity'] ) return render_to_response('links/index.html', {'links': popular_links}) This errors out into: Caught an exception while rendering: column "karma_total" does not exist LINE 1: SELECT ((karma_total - 1) / POW(2, 1.5)) AS "popularity", (S... EDIT 2 Better error? TemplateSyntaxError: Caught an exception while rendering: missing FROM-clause entry for table "vote" LINE 1: SELECT ((vote.karma_total - 1) / POW(2, 1.5)) AS "popularity... My index.html is simply: {% block content %} {% for link in links %} karma-up {{ link.karma_total }} karma-down {{ link.title }} Posted by {{ link.user }} to {{ link.category }} at {{ link.created }} {% empty %} No Links {% endfor %} {% endblock content %} EDIT 3 So very close! Again, all these answers are great but I am concentrating on a particular one because I feel it works best for my situation. from django.db.models import Sum from django.shortcuts import render_to_response from linkett.apps.links.models import * def index(request): popular_links = Link.objects.select_related().extra( select = { 'popularity': '(SUM(links_vote.karma_delta) - 1) / POW(2, 1.5)', }, tables = ['links_link', 'links_vote'], order_by = ['-popularity'], ) return render_to_response('links/test.html', {'links': popular_links}) Running this I am presented with an error hating on my lack of group by values. Specifically: TemplateSyntaxError at / Caught an exception while rendering: column "links_link.id" must appear in the GROUP BY clause or be used in an aggregate function LINE 1: ...karma_delta) - 1) / POW(2, 1.5)) AS "popularity", "links_lin... Not sure why my links_link.id wouldn't be in my group by but I am not sure how to alter my group by, django usually does that.

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  • List of Django model instance foreign keys losing consistency during state changes.

    - by Joshua
    I have model, Match, with two foreign keys: class Match(model.Model): winner = models.ForeignKey(Player) loser = models.ForeignKey(Player) When I loop over Match I find that each model instance uses a unique object for the foreign key. This ends up biting me because it introduces inconsistency, here is an example: >>> def print_elo(match_list): ... for match in match_list: ... print match.winner.id, match.winner.elo ... print match.loser.id, match.loser.elo ... >>> print_elo(teacher_match_list) 4 1192.0000000000 2 1192.0000000000 5 1208.0000000000 2 1192.0000000000 5 1208.0000000000 4 1192.0000000000 >>> teacher_match_list[0].winner.elo = 3000 >>> print_elo(teacher_match_list) 4 3000 # Object 4 2 1192.0000000000 5 1208.0000000000 2 1192.0000000000 5 1208.0000000000 4 1192.0000000000 # Object 4 >>> I solved this problem like so: def unify_refrences(match_list): """Makes each unique refrence to a model instance non-unique. In cases where multiple model instances are being used django creates a new object for each model instance, even if it that means creating the same instance twice. If one of these objects has its state changed any other object refrencing the same model instance will not be updated. This method ensure that state changes are seen. It makes sure that variables which hold objects pointing to the same model all hold the same object. Visually this means that a list of [var1, var2] whose internals look like so: var1 --> object1 --> model1 var2 --> object2 --> model1 Will result in the internals being changed so that: var1 --> object1 --> model1 var2 ------^ """ match_dict = {} for match in match_list: try: match.winner = match_dict[match.winner.id] except KeyError: match_dict[match.winner.id] = match.winner try: match.loser = match_dict[match.loser.id] except KeyError: match_dict[match.loser.id] = match.loser My question: Is there a way to solve the problem more elegantly through the use of QuerySets without needing to call save at any point? If not, I'd like to make the solution more generic: how can you get a list of the foreign keys on a model instance or do you have a better generic solution to my problem? Please correct me if you think I don't understand why this is happening.

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  • cordova 2.0.0 download file Android

    - by N0rA
    I tried to use cordova 2.0.0 API FileTransfer().download() and i got 2 consecutive errors 1) download error source file 2) download error target file here is my code... function downloadMaterial() { var fileTransfer = new FileTransfer(); var serverURL = 'http://img.youm7.com/images/NewsPics/large/S2200921125437.jpg'; var uri = encodeURI(serverURL); var filePath = persistent_root.fullPath+"/" + fileName; //filePath = file:///data/data/com.example.studyapp/S2200921125437.jpg var onSuccess = function (entry) { console.log("download complete: " + entry.fullPath); }; var onError = function (error) { console.log("download error source " + error.source); console.log("download error target " + error.target); console.log("upload error code " + error.code); }; fileTransfer.download(uri, filePath , onSuccess, onError); } Do you have any idea what should I do? Thanks in advance ...

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  • C# "Could not find a part of the path" - Creating Local File

    - by Pyronaut
    I am trying to write to a folder that is located on my C:\ drive. I keep getting the error of : Could not find a part of the path .. etc My filepath looks basically like this : C:\WebRoot\ManagedFiles\folder\thumbs\5c27a312-343e-4bdf-b294-0d599330c42d\Image\lighthouse.jpg And I am writing to it like so : using (MemoryStream memoryStream = new MemoryStream()) { thumbImage.Save(memoryStream, ImageFormat.Jpeg); using (FileStream diskCacheStream = new FileStream(cachePath, FileMode.CreateNew)) { memoryStream.WriteTo(diskCacheStream); } memoryStream.WriteTo(context.Response.OutputStream); } Don't worry too much about the memory stream. It is just outputting it (After I save it). Since I am creating a file, I am a bit perplexed as to why it cannot find the file (Shouldn't it just write to where I tell it to, regardless?). The strange thing is, It has no issue when I'm testing it above using File.Exists. Obviously that is returning false, But it means that atleast my Filepath is semi legit. Any help is much appreciated.

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  • How do I set up ZScreen to upload images to my mediawiki?

    - by Johan
    I've set up a mediawiki with all the correct settings and enabled image uploading. When I do this manually this all works OK. I want to be able to upload screenshots automatically into my mediawiki using ZScreen. There is an option to do this: I press Test..., this work OK, however I'm unable to tell ZScreen to to actually get the picture into my mediawiki. There's no option to select mediawiki as my destination. How do I setup zscreen to upload to my mediawiki?

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  • No such file but the file is there!

    - by user288757
    I'm trying to compile a C++ file with some includes. My main file (well I didn't make it hdf5_getters includes a file which includes the file hdf5.h, also not my design but it's a downloaded library. Every time I try to compile it I get the error message that the file hdf5.h does not exist while it clearly does. I started reading on the internet and people say it can happen because it's a 32bit binary running on a 64bit architecture. But I'm running a 32bit Ubuntu so that can't be it... I'm out of ideas, if anyone can help me please :) This is the errormessage with commands: make hdf5_getters g++ -c -Wall -std=c++0x -O2 -c hdf5_getters.cc In file included from H5Cpp.h:20:0, from hdf5_getters.cc:34: H5Include.h:17:18: fatal error: hdf5.h: No such file or directory #include <hdf5.h> ^ compilation terminated. make: *** [hdf5_getters.o] Error 1

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  • Increasing Max Upload File Size on IIS7/Win7 Pro

    - by Jay Querido
    I'm setting up a server for a client (something I don't typically do), and I'm running into issues with uploading larger files (11MB). The server is running Windows 7 Professional with IIS added. In web.config I've tried setting <system.web> <httpRuntime maxRequestLength="65536" /> <!-- 64MB --> </system.web> ... and that doesn't work. I've set <system.webSecurity> <security> <requestFiltering> <requestLimits maxAllowedContentLength="68157440" /> </requestFiltering> </security> </system.webSecurity> ... and that doesn't work either. What am I missing here? As I've said, I don't typically set up servers, so I may be missing something obvious... no suggestion will be scoffed at! Thanks in advance.

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  • Installation requirements of django installing in hostgator dedicated server

    - by jaypabs
    First, before I install OSQA on my dedicated server at hostgator, I want to know the requirements. I don't want to screw up my server so it's better to ask question first. I have read a lot of tutorial on the internet regarding Django but I want to clarify something before I proceed. On my dedicated server I don't use FCGI. Instead I use Mod SuPHP. A lot of tutorial is talking about installing python using FCGI. My question is if it is safe to install Python if I'm using SuPHP? Is it safe to use the tutorial on this link: http://wiki.osqa.net/display/docs/Installing+OSQA+on+CentOS6?focusedCommentId=4784144 Thanks in advance for your help.

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  • Migration for creating and deleting model in South

    - by Almad
    I've created a model and created initial migration for it: db.create_table('tvguide_tvguide', ( ('id', models.AutoField(primary_key=True)), ('date', models.DateField(_('Date'), auto_now=True, db_index=True)), )) db.send_create_signal('tvguide', ['TVGuide']) models = { 'tvguide.tvguide': { 'channels': ('models.ManyToManyField', ["orm['tvguide.Channel']"], {'through': "'ChannelInTVGuide'"}), 'date': ('models.DateField', ["_('Date')"], {'auto_now': 'True', 'db_index': 'True'}), 'id': ('models.AutoField', [], {'primary_key': 'True'}) } } complete_apps = ['tvguide'] Now, I'd like to drop it: db.drop_table('tvguide_tvguide') However, I have also deleted corresponding model. South (at least 0.6.2) is however trying to access it: (venv)[almad@eva-03 project]$ ./manage.py migrate tvguide Running migrations for tvguide: - Migrating forwards to 0002_removemodels. > tvguide: 0001_initial Traceback (most recent call last): File "./manage.py", line 27, in <module> execute_from_command_line() File "/usr/lib/python2.6/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line utility.execute() File "/usr/lib/python2.6/site-packages/django/core/management/__init__.py", line 303, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/usr/lib/python2.6/site-packages/django/core/management/base.py", line 195, in run_from_argv self.execute(*args, **options.__dict__) File "/usr/lib/python2.6/site-packages/django/core/management/base.py", line 222, in execute output = self.handle(*args, **options) File "/home/almad/projects/mypage-all/lib/python2.6/site-packages/south/management/commands/migrate.py", line 91, in handle skip = skip, File "/home/almad/projects/mypage-all/lib/python2.6/site-packages/south/migration.py", line 581, in migrate_app result = run_forwards(mapp, [mname], fake=fake, db_dry_run=db_dry_run, verbosity=verbosity) File "/home/almad/projects/mypage-all/lib/python2.6/site-packages/south/migration.py", line 388, in run_forwards verbosity = verbosity, File "/home/almad/projects/mypage-all/lib/python2.6/site-packages/south/migration.py", line 287, in run_migrations orm = klass.orm File "/home/almad/projects/mypage-all/lib/python2.6/site-packages/south/orm.py", line 62, in __get__ self.orm = FakeORM(*self._args) File "/home/almad/projects/mypage-all/lib/python2.6/site-packages/south/orm.py", line 45, in FakeORM _orm_cache[args] = _FakeORM(*args) File "/home/almad/projects/mypage-all/lib/python2.6/site-packages/south/orm.py", line 106, in __init__ self.models[name] = self.make_model(app_name, model_name, data) File "/home/almad/projects/mypage-all/lib/python2.6/site-packages/south/orm.py", line 307, in make_model tuple(map(ask_for_it_by_name, bases)), File "/home/almad/projects/mypage-all/lib/python2.6/site-packages/south/utils.py", line 23, in ask_for_it_by_name ask_for_it_by_name.cache[name] = _ask_for_it_by_name(name) File "/home/almad/projects/mypage-all/lib/python2.6/site-packages/south/utils.py", line 17, in _ask_for_it_by_name return getattr(module, bits[-1]) AttributeError: 'module' object has no attribute 'TVGuide' Is there a way around?

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  • How do I repair the corrupted files found by sfc /scannow? "Windows Resource Protection found corrupt files but was unable to fix some of them."

    - by galacticninja
    After running chkdsk C: /F /R and finding out that my hard disk has 24 KB in bad sectors (log is posted below), I decided to run Windows 7's System File Checker utility (sfc /scannow). SFC showed the ff. message after I ran it: "Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log." Since the CBS.log file is too large, I ran findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log >"%userprofile%\Desktop\sfcdetails.txt" (as per Microsoft's KB 928228 article) to only get the log text pertaining to the corrupt files. (log is also posted below) How do I troubleshoot and repair the corrupted files mentioned by sfc /scannow? My OS is Windows 7, 64-bit. chkdsk log Checking file system on C: The type of the file system is NTFS. A disk check has been scheduled. Windows will now check the disk. CHKDSK is verifying files (stage 1 of 5)... 936192 file records processed. File verification completed. 25238 large file records processed. 0 bad file records processed. 4 EA records processed. 44 reparse records processed. CHKDSK is verifying indexes (stage 2 of 5)... 1051640 index entries processed. Index verification completed. 0 unindexed files scanned. 0 unindexed files recovered. CHKDSK is verifying security descriptors (stage 3 of 5)... 936192 file SDs/SIDs processed. Cleaning up 24 unused index entries from index $SII of file 0x9. Cleaning up 24 unused index entries from index $SDH of file 0x9. Cleaning up 24 unused security descriptors. Security descriptor verification completed. 57725 data files processed. CHKDSK is verifying Usn Journal... 36994248 USN bytes processed. Usn Journal verification completed. CHKDSK is verifying file data (stage 4 of 5)... 936176 files processed. File data verification completed. CHKDSK is verifying free space (stage 5 of 5)... 306238 free clusters processed. Free space verification is complete. Adding 1 bad clusters to the Bad Clusters File. Correcting errors in the Volume Bitmap. Windows has made corrections to the file system. 488282111 KB total disk space. 485595420 KB in 766458 files. 401856 KB in 57726 indexes. 24 KB in bad sectors. 1059863 KB in use by the system. 65536 KB occupied by the log file. 1224948 KB available on disk. 4096 bytes in each allocation unit. 122070527 total allocation units on disk. 306237 allocation units available on disk. Internal Info: 00 49 0e 00 81 93 0c 00 34 01 17 00 00 00 00 00 .I......4....... 6b 29 00 00 2c 00 00 00 00 00 00 00 00 00 00 00 k)..,........... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ sfc /scannow log (through findstr /c:"[SR]" %windir%\Logs\CBS\CBS.log >"%userprofile%\Desktop\sfcdetails.txt") Note: The full log is at http://pastebin.com/raw.php?i=gTEGZmWj . I've only quoted parts of the full log below (mostly from the last part), as the full log won't fit within the character limit for questions. I've added it to serve as a preview. ... 2013-12-28 19:37:50, Info CSI00000542 [SR] Beginning Verify and Repair transaction 2013-12-28 19:37:55, Info CSI00000544 [SR] Verify complete 2013-12-28 19:37:56, Info CSI00000545 [SR] Verifying 95 (0x000000000000005f) components 2013-12-28 19:37:56, Info CSI00000546 [SR] Beginning Verify and Repair transaction 2013-12-28 19:38:03, Info CSI00000548 [SR] Verify complete 2013-12-28 19:38:03, Info CSI00000549 [SR] Repairing 43 (0x000000000000002b) components 2013-12-28 19:38:03, Info CSI0000054a [SR] Beginning Verify and Repair transaction ... 2013-12-28 19:38:15, Info CSI00000730 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:62{31}]"GroupPolicy-Admin-Gpedit-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000733 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:30{15}]"frs-core-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000736 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:26{13}]"gpmgmt-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000739 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:74{37}]"MediaServer-ASPAdmin-Migration-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000073c [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:36{18}]"Ldap-Client-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000073f [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:38{19}]"iSNS_Service-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000742 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:76{38}]"MediaServer-Multicast-Migration-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000745 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:78{39}]"Kerberos-Key-Distribution-Center-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000748 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:86{43}]"GroupPolicy-CSE-SoftwareInstallation-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000074b [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:28{14}]"ieframe-dl.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000074e [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:76{38}]"GroupPolicy-Admin-Gpedit-Snapin-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000751 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:32{16}]"IPSec-Svc-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000754 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:22{11}]"HTTP-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000757 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:56{28}]"MediaServer-Migration-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000075a [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:26{13}]"GPBase-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI0000075d [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:38{19}]"IasMigPlugin-DL.man"; source file in store is also corrupted 2013-12-28 19:38:15, Info CSI00000760 [SR] Could not reproject corrupted file [ml:520{260},l:84{42}]"\??\C:\Windows\System32\migwiz\dlmanifests"\[l:50{25}]"International-Core-DL.man"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI00000762 [SR] Cannot repair member file [l:24{12}]"wbemdisp.dll" of Microsoft-Windows-WMI-Scripting, Version = 6.1.7600.16385, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch 2013-12-28 19:38:16, Info CSI00000763 [SR] This component was referenced by [l:202{101}]"Microsoft-Windows-Foundation-Package~31bf3856ad364e35~amd64~~6.1.7601.17514.WindowsFoundationDelivery" 2013-12-28 19:38:16, Info CSI00000766 [SR] Could not reproject corrupted file [ml:58{29},l:56{28}]"\??\C:\Windows\SysWOW64\wbem"\[l:24{12}]"wbemdisp.dll"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI00000768 [SR] Cannot repair member file [l:56{28}]"Microsoft.MediaCenter.UI.dll" of Microsoft.MediaCenter.UI, Version = 6.1.7601.17514, pA = PROCESSOR_ARCHITECTURE_MSIL (8), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch 2013-12-28 19:38:16, Info CSI00000769 [SR] This component was referenced by [l:176{88}]"Microsoft-Windows-MediaCenter-Package~31bf3856ad364e35~amd64~~6.1.7601.17514.MediaCenter" 2013-12-28 19:38:16, Info CSI0000076c [SR] Could not reproject corrupted file [ml:520{260},l:40{20}]"\??\C:\Windows\ehome"\[l:56{28}]"Microsoft.MediaCenter.UI.dll"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI0000076e [SR] Cannot repair member file [l:24{12}]"ReAgentc.exe" of Microsoft-Windows-WinRE-RecoveryTools, Version = 6.1.7601.17514, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch 2013-12-28 19:38:16, Info CSI0000076f [SR] This component was referenced by [l:202{101}]"Microsoft-Windows-Foundation-Package~31bf3856ad364e35~amd64~~6.1.7601.17514.WindowsFoundationDelivery" 2013-12-28 19:38:16, Info CSI00000772 [SR] Could not reproject corrupted file [ml:48{24},l:46{23}]"\??\C:\Windows\SysWOW64"\[l:24{12}]"ReAgentc.exe"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI00000774 [SR] Cannot repair member file [l:82{41}]"System.Management.Automation.dll-Help.xml" of Microsoft-Windows-PowerShell-PreLoc.Resources, Version = 6.1.7600.16385, pA = PROCESSOR_ARCHITECTURE_AMD64 (9), Culture = [l:10{5}]"en-US", VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch 2013-12-28 19:38:16, Info CSI00000775 [SR] This component was referenced by [l:266{133}]"Microsoft-Windows-Client-Features-Package~31bf3856ad364e35~amd64~en-US~6.1.7601.17514.Microsoft-Windows-Client-Features-Language-Pack" 2013-12-28 19:38:16, Info CSI00000778 [SR] Could not reproject corrupted file [ml:520{260},l:104{52}]"\??\C:\Windows\System32\WindowsPowerShell\v1.0\en-US"\[l:82{41}]"System.Management.Automation.dll-Help.xml"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI0000077a [SR] Cannot repair member file [l:18{9}]"hlink.dll" of Microsoft-Windows-HLink, Version = 6.1.7600.16385, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, Type neutral, TypeName neutral, PublicKey neutral in the store, hash mismatch 2013-12-28 19:38:16, Info CSI0000077b [SR] This component was referenced by [l:202{101}]"Microsoft-Windows-Foundation-Package~31bf3856ad364e35~amd64~~6.1.7601.17514.WindowsFoundationDelivery" 2013-12-28 19:38:16, Info CSI0000077e [SR] Could not reproject corrupted file [ml:48{24},l:46{23}]"\??\C:\Windows\SysWOW64"\[l:18{9}]"hlink.dll"; source file in store is also corrupted 2013-12-28 19:38:16, Info CSI00000780 [SR] Repair complete 2013-12-28 19:38:16, Info CSI00000781 [SR] Committing transaction 2013-12-28 19:38:19, Info CSI00000785 [SR] Verify and Repair Transaction completed. All files and registry keys listed in this transaction have been successfully repaired

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  • Display custom file format's metadata in Windows Explorer

    - by Benny Jobigan
    When viewing a jpg or mp3 in Windows Explorer, the bottom pane shows metadata from the media file. Furthermore, for video and picture, the icon is shown as a preview of the media. Is there a way to add this kind of functionality to windows for custom file types that aren't supported by default in windows? Is there a certain sort of plugin or extension that must be written? If so, how is it implemented? Thank you.

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  • CentOS 6.5 as WebServer for Django Dev

    - by Charlesliam
    During CentOS 6.5 Installation I choose WebServer type for this computer. The server has a static IP address 192.168.111.100. The CentOS was updated I managed to install virtualenv with Python 2.7. Within the virtualenv, I'll be using Django Framework. After I tried to run the command using root user python manage.py runserver 0.0.0.0:8000 I can't see the website from other computer within the LAN when I try to type 192.168.111.100:8000/admin on my browser. I already disable firewall using service iptables stop I can ping the 192.168.111.100 and I have a good feedback with nslookup. What seems the problem of my config?

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  • django + wsgi + suexec + userdir + apache?

    - by Jayen
    I've got a django 1.1 website I want to run in wsgi (as that seems to be the recommended deployment on apache). I want it to run as the www user (apache is running as www-data). I would ideally like this to work out of http://hostname/~www/ (~www/public_html) as well as http://virtualhostname/. I also want this to work for other users who may later use wsgi. Can I make this happen? I've been staring at docs trying to figure where to start, but I'm having trouble combining userdir and wsgi to let me run ~xxx/public_html/index.wsgi as user xxx, for every user xxx.

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