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• os.walk in python not running with cmd line parameter passed as path

  - by kartiku

  Hello, I needed to find the number of files in a folder on the system. This is what i used: file_count = sum((len(f) for _, _, f in os.walk('path'))) This works fine when we specify the path as a string in quotes, but when I enter a variable name that holds the path, type(file_count) is a generator object, and hence cannot be used as an integer. How to solve this and why does this happen?

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• Non-Ascii characters not supported by .net?

  - by Vinay Pandey

  Hi All, When I added a class with non-Ascii caharacters in the class name, it removed the non-Ascii from class name and when added directly to class it complains of non-Ascii characters. Are Non-ASCII characters not supported in class name and variable name?

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• Metaprogramming ActiveRecord Rails

  - by Dimitar Vouldjeff

  Hi, I have the following code in my project`s lib directory module Pasta module ClassMethods def self.has_coordinates self.send :include, InstanceMethods end end module InstanceMethods def coordinates [longitude ||= 43.0, latitude ||= 25.0] end end ActiveRecord::Base.extend ClassMethods end And it should create a class method for ActiveRecord::Base - has_coordinates - which I can "assign" to models... But I receive the error undefined local variable or method 'has_coordinates' Thanks in advance!

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• Lost some intellisense in VS2010

  - by maxp

  Getting to grips with Visual Studio 2010, This compiles: var x = System.Web.Security.Membership.GetUser(); And runs, however VS2010 gives no intellisense for x and reports it just as a 'local variable'. Has anyone got any ideas?

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• Read -> change -> save. Thread safe.

  - by Pavel Alexeev

  This code should automatically connect players when they enter a game. But the problem is when two users try to connect at the same time - in this case 2nd user can easily overwrite changes made by 1st user ('room_1' variable). How could I make it thread safe? def join(userId): users = memcache.get('room_1') users.append(userId) memcache.set('room_1', users) return users I'm using Google App Engine (python) and going to implement simple game-server for exchanging peers given by Adobe Stratus.

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• [PowerShell] Input encoding

  - by Andy

  Hi! I need to get output of native application under PowerShell. The problem is, output is encoded with UTF-8 (no BOM), which PowerShell does not recognize and just converts those funky UTF chars directly into Unicode. I've found PowerShell has $OutputEncoding variable, but it does not seem to affect input data. Good ol' iconv is of no help either, since this unnecessary UTF8-as-if-ASCII = Unicode conversion takes place before the next pipeline member acquires data.

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• php troubles with coding variables

  - by user342391

  I am trying to echo certain values if the variable $cardtype == $paymentmethod = if( $cardtype == 'visa' ) echo 'VSA'; elseif ( $cardtype == 'mastercard' ) echo 'MSC'; elseif ( $cardtype == 'mastercard' ) echo 'MSC'; elseif ( $cardtype == 'maestro' ) echo 'MAE'; elseif ( $cardtype== 'amex' ) echo 'AMX'; How would I do this???

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• jQuery find by value

  - by Happy

  There is a link with title and some value: <a href="http://site.com/someid/" title="Use ctrl + >">next</a> How to find this link and throw its href attribute to some variable?

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• In CMake, how does CHECK_INCLUDE_FILE_CXX work?

  - by Neil G

  The following code prints nothing CHECK_INCLUDE_FILE_CXX(glog/logging.h GLOG_INCLUDE) IF(GLOG_INCLUDE) MESSAGE("YY") ENDIF(GLOG_INCLUDE) But I have the following environment variable set: export CPLUS_INCLUDE_PATH=/usr/local/include And, "ls /usr/local/include/glog/logging.h" returns the file. I tried using include_directories( "/usr/local/include" ) but it doesn't work either.

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• How does one concatenate database values into a string?

  - by ggg

  I would like to string together database values into a string. Something like $a "text" $b. And then use the entire string as a variable, let's say $c. Is it better to do this at the database level? Will php use lots of resources to do this?

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• filesize of large files in c

  - by endeavormac

  How can I get the filesize of a file in C when the filesize is greater than 4gb? ftell returns a 4 byte signed long, limiting it to two bytes. stat has a variable of type off_t which is also 4 bytes (not sure of sign), so at most it can tell me the size of a 4gb file. What if the file is larger than 4 gb?

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• C preprocessor at run time?

  - by drigoSkalWalker

  Hi guys, I want to do a Token concatenation, but I want to do this with the content of a variable, not its name. like this. #define call_function(fun, member) fun##_##number () while (i < 10 ) { call_function(fun, i); } but I give fun_number (), I want to give fun_1, fun_2, and so on... how to do it? Thanks in advance!!!

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• Using CSS how do you move text down when a floated image is above a certain width?

  - by Peter Kelley

  I have a text block with an image floated left. The images can be of variable width. If the image is say greater than 2/3 the width of the block I want the text to drop down below the image but if not I want it beside the image. All of this is in Drupal if that matters.

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• JQuery and JSON - Add element

  - by Villager

  Hello, I have a JSON variable defined as: var myCollection = { "data": [ { "name":"Joe", "id":"1" }, { "name":"Bill", "id":"2" }, { "name":"Dave", "id":"3" } ] }; I have a JavaScript function that is responsible for adding items to the data element in myCollection. However, I'm not sure how to add a name/id pair to the collection via JavaScript. Can someone show me how to add to a JSON collection via JavaScript? Thank you!

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• jQuery check status

  - by Happy

  This function everytime gives "false", even if image_url exists // some .each { var item = $('.item', this); $.ajax({ url: image_url, success: function() { item.html("true"); }, error: function() { item.html("false"); } }); // } Its used to check existance of image_url file - this variable gives url like http://blog.com/teddybear.png Any idea?

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• PHP - Pass POST variables with header()?

  - by Dan

  Hi, I'm trying to use the header() function to create a redirect. I would like to display an error message. Currently I'm sending the message as a parameter through the URL, however this makes it look quite ugly. Is there a way to pass this value as a post variable instead? Any advice appreciated. Thanks.

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• How do I use multiple arguments from an array to construct an execl() call in C?

  - by chucknelson

  I have a string array in C named args[] - now how can I use this list of arguments to construct a proper call to execl()? So if the array contains: {"/bin/ls","ls","-a","-l"} ...how can I eventually construct an execl() call that is: execl("/bin/ls","ls","-a","-l",NULL); I must be thinking about this wrong, as I can't find anything online, just talk about defining functions that can take a variable number of arguments.

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• How to discover web servers on a local network?

  - by Stefan Kendall

  Suppose I'm running several servers serving basic requests on my local network (say a home network, where all machines generally have an IP in the form K.K.K.x, where x is variable). Is there an easy way to discover all such servers? I would need to find each IP on the network running a particular java server application.

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• best articles about organizing code files in C

  - by kliketa

  Can you recommend me what should I read/learn in order to make a well organized code in C? One of the things I want to learn is the principles of splitting project in .h and .c files, what goes where and why, variable naming, when to use global variables ... I am interested in books and articles that deal with this specific problem.

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• Grid 960 bug in Internet Explorer 8?

  - by mg1075

  If you go to the "Variable Grid System" generator and have: column width = 20 number of columns = 12 and gutter width = 60 ...the system provides a content width of 900 and a full width of 960. http://www.spry-soft.com/grids/ Now, this is all fine and dandy in Firefox, Chrome, and even IE6, but when you load those settings in IE8, you end up with the actual full width as 1000px, not 960px. Has this issue been encountered before?

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• When are static class variables initialized during runtime?

  - by Jake

  Hi, I have the following: class Thing { static Thing PREDEFINED; type _private; Thing() { _private = initial_val; } } Thing Thing::PREDEFINED = redefined_val; in global scope, i have this Thing mything = Thing::PREDEFINED; but it does not have the desired effect. mything is still initial_value and there were no errors too. So, may I ask when is the static class variable initialized during runtime?

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• [Zend Framework] How to automatically set and atribute to controller

  - by rasouza

  Maybe the question is not self-explanatory, so I will explain it through. The deal is: I got the variable $conn in the bootstrap class file. I'd like to make it global for every controller so that I just have to call $this-conn in the controller action scope in order to access the data inside. How would I do it? Thx

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• jquery tree traversing help

  - by rod

  Hi All, Given simple DOM: <form id="form1">...</form> <div> <div> <a href="#" id="export">Export</a> </div> </div> Starting with id=export, is there a way to go up a variable amount of divs and then get the closest form id? Thanks, rodchar

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• How to do an if statement on a function in PHP?

  - by Bruce

  I just realized that you can't just use an if statement on a function, for example this doesn't work: function sayHello() { echo "Hello World"; } if(sayHello()) echo "Function Worked"; else echo "Function Failed"; I also saw that a function can't be put as the value of a variable. So how can I do an if statement to check if a function has executed properly and display it to the browser?

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• Is it more efficient (Performance) to store the CFC in application variables OR instance the CFC on the page call?

  - by Mitchell Guimont

  Hello, I'm working on a ColdFusion dynamic website. For this website, there are a lot of CFCs and a lot of functions within each CFC. Would it be more efficient to store an instance of the CFC in an application variable, then to instance each CFC separately on each page load. For each page, at most 2 separate CFCs get called. I'm also interested in how performance will be effected when requests increase (Stress). Thanks!

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