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  • [python] traversing an object tree

    - by jml
    Hi there, I'm trying to find information on different ways to traverse an object tree in python. I don't know much about the language in general yet, so any suggestions/techniques would be welcome. Thanks so much jml

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  • How to secure a VM while allowing customer RDS (or equivalent) access to its desktop

    - by ChrisA
    We have a Windows Client/(SQL-)Server application which is normally installed at the customer's premises. We now need to provide a hosted solution, and browser-based isn't feasible in the short term. We're considering hosting the database ourselves, and also hosting the client in a VM. We can set all this up easily enough, so we need to: ensure that the customer can connect easily, and also ensure that we suitably restrict access to the VM (and its host, of course) We already access the host and guest machines across the internet via RDS, but we restrict access to it to only our own internal, very small, set of static IPs, and of course theres the 2 (or 3?)-user limit on RDS connections to a remote server. So I'd greatly appreciate ideas on how to manage: the security the multi-user aspect. We're hoping to be able to do this initially without a large investment in virtualisation infrastructure - it would be one customer only to start with, with perhaps two remote users. Thanks!

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  • zend studio encoding problem

    - by Syom
    i used Zend Studio for eclipse, and now i have a problem with encoding. when i try to write text in foreign language, it doesn't understand the font. but in browser it shows normally. i've set then default encoding to UTF-8, but it doesn't work. could you help me. Thanks

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  • What does this error mean (Can't create TCP/IP socket (24))?

    - by user105196
    I have web server with OS RHEL 6.2 and Mysql 5.5.23 on another server and the web server can read from Mysql server without problem, but some time I got this error: [Sun Sep 23 06:13:07 2012] [error] [client XXXXX] DBI connect('XXXX:192.168.1.2:3306','XXX',...) failed: Can't create TCP/IP socket (24) at /var/www/html/file.pm line 199. my question : What does this error mean (Can't create TCP/IP socket (24))? is it OS error or Mysql error ? perl -v This is perl, v5.10.1 (*) built for x86_64-linux-thread-multi mysql -V mysql Ver 14.14 Distrib 5.5.23, for Linux (x86_64) using readline 5.1 su - mysql -s /bin/bash -c 'ulimit -a' core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 127220 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited

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  • How to output to S-Video on Windows XP in single-monitor mode (clone display)?

    - by Jephir
    I am using an IBM ThinkPad T30 running Windows XP. It is connected to a TV system via S-Video output. Windows is currently set up in multi-monitor mode with monitor 2 being output to S-Video. However, since there is no preview monitor, I can't interact with anything I drag to monitor 2 as I can't see it. I would rather have the system set up so that there is only one monitor and the output is cloned to the laptop display and S-Video. This allows me to see what I'm doing on the TV system. Is this possible?

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  • Implementing Barrier system solution in C or C++

    - by hardikpatel172
    Actually I have been assigned to implement Barrier system solution in either C or C++ programming language... But I have zero knowledge about it ... I know the problem as well as solution theoritically.. But I have no idea how to implement it.... How can it be possible in C++ to stop or run or wait any process.... Plz yaar... Anyone help me... It's urgent...

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  • Q&A website with Wordpress

    - by radi
    hi guys , i want to design a small website like stackoverflow (but in deferent language) and i want to use wordpress because it easy to use and have a lot of plugins and themes and it is opensource so : how can i do this website in wordpress and what are the plugins i need to help me mange it and make it secure . thanks and sorry about my english .

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  • website and protocol restriction (firewall application)

    - by Smith
    Am developing a firewall application that is suppose to restrict website/protocols/webs directories system wide that i choose for example restrict login.domain.com, but not domain.com restrict domain.com/passport not domain.com restrict .tld types e.g .org pls give me some ideas? [edit] Am developing on the windows plat form , from win 2000 to win7, using any vb language vb6 upwards also i want to be able to block any protocol http ftp etc.

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  • Uptime concerns in case of AWS outage

    - by Aditya Patawari
    I am running an Elastic Load Balancer backup by 2 instances in different Availability Zones in US East. I am using Multi-AZ RDS as well. Ideally this should ensure that if one AZ goes down, it should not effect the app because everything is spread across multiple AZs. But the recent AWS outage took the app down for a long time. I am not sure how this can happen. It would be great if someone can point out what went wrong. Major question here I have is how can I avoid this in future? I can setup app servers across different regions or even providers and use DNS for load balancing but what do I do with MySQL? Read Replicas will introduce some lag which I would want to avoid.

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  • Should I use Java for a custom Swing component designed for a clojure app?

    - by nansen
    I want a simple timeline component (like in video editing software) for a clojure/seesaw app and I am wondering if it is a good approach to implement this directly with clojure and seesaw or if I should write it in java and make my clojure wrapper around it. Or more generally: is a functional programming language optimal for writing UI widgets? I cannot imagine doing that without a lot of state involved. And wasn't OO invented for UI-development in the first place?

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  • Error when connecting to hello world yesod example on Windows 8

    - by reltone
    I start the executable (after building it with cabal) and it says "Application launched, listening on port 3000." Next I connect to it with my web browser and the console says "threadWaitRead requires -threaded on Windows, or use System.IO.hWaitForInput." The web browser never connects. Not sure what this is actually recommending I do to resolve the problem. {-# LANGUAGE TypeFamilies, QuasiQuotes, MultiParamTypeClasses, TemplateHaskell, OverloadedStrings #-} import Yesod data HelloWorld = HelloWorld mkYesod "HelloWorld" [parseRoutes| / HomeR GET |] instance Yesod HelloWorld getHomeR :: Handler RepHtml getHomeR = defaultLayout [whamlet|Hello World!|] main :: IO () main = warpDebug 3000 HelloWorld

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  • Localization problems in iPhone

    - by user193545
    Hi I have been trying to localize my iPhone app in two languages - english and german I have created two folders en.lproj and de.lproj each containing Localizable.strings file for respective language. I have included these files in my resources folder, changed the encoding of these files to UTF-16. I have tried cleaning the project and building it again, deleting folder at path: Library/Application Support/iPhone Simulator/User But the problem is still there. Anybody having an idea please help.

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  • Which conventions, events, etc. should I look into attending?

    - by perlox
    I am a student programmer and relatively new to the industry. Once I get out into the real world and have money to blow, which events/conventions/conferences/etc. should I look into attending? Which do you consider a must-attend-at-least-once-in-your-life-as-a-developer type of event? Just to clarify, any language, company, size, are acceptable. I'm mostly looking to generate a list of highly regarded conferences for a variety of different fields/interests.

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  • jQuery function only inside a specific div ID

    - by user412481
    I have the following function that I only want to run inside a specific div with the id of imgWrapper. I have tried a few things with parent but I cannot seem to figure this out. <script type="text/javascript" language="javascript"> $(document).ready( function () { $("img").each(function () { var src = $(this).attr("src"); if (src.substring(0, 1) == "/") $(this).attr("src", "http://serverName.com/" + src.substring(1)) }); } ); </script>

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  • How can I implement incremental search on command line?

    - by florianbw
    I'd like to write small scripts which feature incremental search (find-as-you-type) on the command line. Use case: I have my mobile phone connected via USB, Using gammu --sendsms TEXT I can write text messages. I have the phonebook as CSV, and want to search-as-i-type on that. What's the easiest/best way to do it? It might be in bash/zsh/Perl/Python or any other scripting language.

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  • how to get started with TopCoder to update/develop algorithm skills ?

    - by KaluSingh Gabbar
    at workplace, the work I do is hardly near to challenging and doing that I think I might be loosing the skills to look at a completely new problem and think about different ideas to solve it. A friend suggested TopCoder.com to me, but looking at the overwhelming number of problems I can not decide how to get started? what I want is to sharpen my techniques ( not particular language or framework ).

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