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• users authentication and dht

  - by mtasic

  Lets say that I have only DHT (distributed hash table) implemented (in Python), and I want to build authentication service over P2P network, but without introducing centralized authentication server with such a service. Can it be done, and if so how can I achieve this? I'm familiar with how Skype and Wuala have done this, but I am looking for decentralized solution without single point of failure.

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• List as a key to a dictionary

  - by williamx

  Let's say I have a list: a = ['apple', 'orange'] and a dictionary: d ={'apple': [2,4], 'carrot': [44,33], 'orange': [345,667]} How can I use the list a as a key to lookup in the dictionary d? I want the result to be written to a comma-separated textfile like this apple, orange 2, 44 4, 33

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• Algorithm to return all combinations of k elements from n

  - by IQue

  I want to write a function that takes an array of letters as an argument and a number of those letters to select. Say you provide an array of 8 letters and want to select 3 letters from that. Then you should get: 8! / ((8 - 3)! * 3!) = 56 Arrays (or words) in return consisting of 3 letters each.

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• Where Googlebot starts crawling?

  - by Nirmal

  Say if I register a domain and have developed it into a complete website. From where and how Googlebot knows that the new domain is up? Does it always start with the domain registry? If it starts with the registry, does that mean that anyone can have complete access to the registry's database? Thanks for any insight.

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• Examples of IOC/DI over Singleton

  - by Amitd

  Hi, Just started learning/reading about DI and IOC frameworks. Also I read many articles on SO and internet that say that one should prefer DI/IOC over singleton. Can anyone give/link examples of exactly how DI/IOC eliminates/solves the various issues regarding the Singleton pattern? (hopefully code and explanation for better understanding) Also given a system has already implemented Singleton pattern, how to refactor/implement DI/IOC for the same? (any examples for the same?) (Language/Framework no bars..C# would be helpful) Thanks

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• Ajaxcontrolkit calendar control - customisation

  - by Jonesy

  hi, Can the calendar control be customsised so that, say you have a system of renting out a holiday home. can the dates that have been booked appear as red and disabled on the ajaxcalendar control? Cheers -- Jonesy

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• Jquery Issue with full calendar and mega menu

  - by Aneef

  Hi Can anyone say why this megamenu isnt working when i hover categories menu on this page? it works on other pages, but in this page its not because of fullcalendar?? http://gunwebstaging.com.mytempweb.com/Calendar.aspx

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• How to integrate Blogger to personal website?

  - by Sam Rudolph

  I have 1 blog say xyz.blogspot.com,now am uploading my own website,so I want to integrate my BLOG in my website.along with that I would like to import comments if possible. will be coding the logic in java only. did googling,but was unable to find some relevant solution.

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• How fast anticipate is HTML5 going to be widespread?

  - by celalo

  I guess IE9 must be taken into account to start with. However, considering IE6 is still out there like a zombie, what should we expect from the future HTML5? When it will be possible to have let's say 90% of coverage among within all browsers?

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• Can immutable be a memory hog?

  - by ciscoheat

  Let's say we have a memory-intensive class like an Image, with chainable methods like Resize() and ConvertTo(). If this class is immutable, won't it take a huge amount of memory when I start doing things like i.Resize(500, 800).Rotate(90).ConvertTo(Gif), compared to a mutable one which modifies itself? How to handle a situation like this in a functional language?

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• assign a shelved changlist in perforce?

  - by Denise

  I'm really excited about Perforce's new shelve command. They say that you should be able to "reassign" the changelist to someone else, who can then unshelve it. How do I reassign a shelved changelist? Is there a way to do it in p4v, or only at the commandline?

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• How to bind arrays?

  - by Emily

  Say i have those 3 arrays : Product(milk,candy,chocolate) Colors(white,red,black) Rating(8,7,9) How to create a loop to bind those arrays so i get 3 variables in each loop : $product $color $rating So by example i will output like this: Milk is white and has a rating of 8/10 Candy is red and has a rating of 7/10 Chocolate is black and has a rating of 9/10 Thanks

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• LinqPad / Sqlite version info and foreign key support

  - by wpfwannabe

  I am using fabulous LinqPad and its Sqlite driver. 1) Is there a way to obtain Sqlite version information by executing say "select version"? 2) Which driver specific connection string should I use to enable foreign key support in Sqlite?

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• Access is denied error with pregenerated .pyc or .pyo files

  - by mukul sharma

  Hi All, I am getting an Access is denied error while I am trying to run the .pyo file by double click or from the command prompt. Lets say I have abc.py (keeping main method entry point) which imports files xyz.py and imports wx etc. I generate the .pyo file. But once I try to run abc.pyo I get the access is denied error. I am not getting why this happening? Any help will really appreciated. Thanks

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• Attaching labels to messages in Gmail via IMAP using code

  - by Ali

  Hi guys - concerning Gmail labels - what are they technically speaking. I mean through imap connection I can access a gmail mailbox and go through the emails however let say I wish to create a label and attach it to the emails as I loop through them using code - how can I do that in code? I'm using php - and Zend Framework.

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• deleting eventlog

  - by user311130

  Hey, How can I delete a specific eventlog entry (say id 130 with source: Myprog) or delete all eventlogs from a specific source without deleting the whole eventlogs under "Application" folder? public static void deleteEvent() { string logName; if (EventLog.SourceExists(SOURCE)) { logName = EventLog.LogNameFromSourceName(SOURCE, "."); EventLog.Delete(logName); } } I tried the following code, but it deleted all the eventlogs under "Application". Cheers,

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• joining null in MS SQL server, Oracle and informatica

  - by jest

  hi! I've two tables to join with a column(say emp_id)..if emp_id in both the tables have null values, how'll MS SQL server and Oracle treat??? Coz, i read that informatica will neglect the NULL rows when joining..if i handle the null, by substituting -1, a cross-join will happen which i don't want.. what can i do here? I cannot completely neglect the rows which has NULL. Thanks

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• How to delete an element from a list while iterating it in Python?

  - by bodacydo

  Suppose I have a list of numbers: L = [1, 2, 3, 4, 5] How do I delete an element, let's say 3, from the list while I iterate it? I tried the following code but it didn't do it: for el in L: if el == 3: del el Any ideas? Thanks, Boda Cydo.

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• How to add action related to a business object in Metawidget?

  - by Gulcan

  I use Netbeans 6.8 and try to obtain user interface by using metawidget and JPA. I cannot say @Action public void save( ActionEvent event ) { mSearchMetawidget.save(); } This annotation gives "incompatible types" error when I add following import. import org.metawidget.inspector.impl.actionstyle.Action; What to do? How can I add an action related to my User entity. I want to do "register" action. Thanks in advance

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• Zend Server experiences

  - by Luke

  The other day I was looking into Zend Server and I was wondering why I would use this? OK, they say it's all tested and mission critical and Enterprise ready etc. But to me that's just the marketing department talking. Is anyone out there using this product and if so can you share your experiences with it and maybe you could also elaborate on the reason on why you choose this product for your application(s). Did you find any real benefits to using Zend server?

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• Automatically create tag based on the string

  - by Gautam

  Hello, I am new to ruby on rails. Lets say i have this text.. Ashley Cole and Cheryl Cole Split. Is there a way to automatically tag this above text to Ashley Cole, Cheryl Code, ChelseaFC ( Ashley Cole plays football (Soccer) for that club. Please help.. Also which is the best tagging gem available? Looking forward for your help Thanks Gautam

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• in tcl, how do I replace a line in a file?

  - by n00b programmer

  let's say I opened a file, then parsed it into lines. Then I use a loop: foreach line $lines {} inside the loop, for some lines, I want to replace them inside the file with different lines. Is it possible? Or do I have to write to another temporary file, then replace the files when I'm done? e.g., if the file contained AA BB and then I replace capital letters with lower case letters, I want the original file to contain aa bb Thanks!

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• Google Maps Marker Click Event

  - by Mike

  I'd like to populate a google map with several markers. When the user clicks on a marker I would like it to send the user to a different webpage which is designated for that location. (for example: lets say the markers represent homes, when you click on a marker it takes you to a page with more information about the home) What is the simplest way to do this?

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• WPF TabControl Determine header Heigth?

  - by Petoj

  Lets say i have a reference to a TabControl is there any way to get the height of the headers? The reason for this is the following i have one tabcontrol and one image above it and i want the headers to be on the image.. so my idear was to write a value converter that can convert a tabcontrol to a Thickness.. and by using this i would be able to place the headers on top of the image...

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• MouseMove sensibility

  - by serhio

  I use MouseMove event to move objects(say labels). simple principle(schematic): OnMouseMove(e MouseEventArgs) deltaX = e.X - lastX foreach label in labels label.Location.X += deltaX lastX = e.X Now, when I have one label there is no problem. Once the labels number increase, I start to see the labels traces along the moving trajectory. Is there a way to prevent this kind of traces? tried label.Visible = false label.Location.X += deltaX label.Visible = true does not help.

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