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• Temporary PYTHONPATH in Windows

  - by Santa

  How do I set, temporarily, the PYTHONPATH environment variable just before executing a Python script? In *nix, I can do this: $ PYTHONPATH='.' python scripts/doit.py In Windows, this syntax does not work, of course. What is the equivalent, though?

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• Python float copy question

  - by SJA

  Hi, I'm puzzled by some behaviour I'm seeing when copying a float array member into another variable - please help! For example data_entry[1] = 9.6850069951 new_value = data_entry[1] <comment> #print both 9.6850069951 9.6850663300 I'm aware of the problem of binary storage of floats but I thought with a direct copy of memory we would end up with the same value. Any ideas? I need better precision than this! thanks in advance Stuart

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• Am I right in thinking there is no way to put an if statement and an else statement on line in Python?

  - by Louise

  Am I right in thinking I can't put an if-statement and the corresponding else-statement on one line in Python? NB: variable = value1 if condition else value2 is NOT two statements. It's one statement which can take the value of one of two expressions. I want to do something like if condition a=value else b=value Am I right in thinking this requires a full if-else in Python? Like if condition: a=value else: b=value Thanks, Louise

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• How to use nose coverage with --timid flag

  - by housemaister

  I'd like to run "nosetests --with-coverage" using Ned Batchelder's coverage module, but passing the coverage module the --timid flag. Is there a way (e.g. setting an environment variable) to make coverage run with --timid?

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• Returning char* in function

  - by Devel

  I have function: char *zap(char *ar) { char pie[100] = "INSERT INTO test (nazwa, liczba) VALUES ('nowy wpis', '"; char dru[] = "' )"; strcat(pie, ar); strcat(pie, dru); return pie; } and in main there is: printf("%s", zap( argv[1] ) ); When compiling I get the warning: test.c: In function ‘zap’: test.c:17: warning: function returns address of local variable How should I return char* propertly?

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• Rubyists: What is this called?

  - by Matt Darby

  Say I have a pool of enumerables that I want to group by an attribute: cars = Car.all.group_by(&:color) Then I want to iterate over those cars like so: cars.inject([]) do |stack, (color, cars)| stack << cars.each do |car| ... end end What is the term for the block variable extension (between the parentheses)?

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• Shopping Cart in Flex 4

  - by chchrist

  I am trying to code a shopping cart using Flex 4. I am at the design process and I need to figure out which design pattern to use. I am thinking of using the Singleton pattern. I will have a Product Value Object where I'll save each product's values and the I'll push each product to an array variable in my Singleton class. Is my logic OK? Is there a better way? Thanks in advance

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• numeric cycles in shell

  - by oraz

  hello, what is the name and sintacsys of construcion ((..)) in example below? for ((i=1;i<10;i++)) do echo $i; done it has strange variable i where are other constructons for numeric cycling in shell?

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• How to add a context processor from a Django app

  - by Edan Maor

  Say I'm writing a Django app, and all the templates in the app require a certain variable. The "classic" way to deal with this, afaik, is to write a context processor and add it to TEMPLATE_CONTEXT_PROCESSORS in the settings.py. My question is, is this the right way to do it, considering that apps are supposed to be "independent" from the actual project using them? In other words, when deploying that app to a new project, is there any way to avoid the project having to explicitly mess around with its settings?

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• Primitive data type in C to represent the WORD size of a CPU-arch

  - by Sandip

  I observed that size of long is always equal to the WORD size of any given CPU architecture. Is it true for all architectures? I am looking for a portable way to represent a WORD sized variable in C.

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• Keyword Selection Background?

  - by Irwin

  I just installed MSVS2010 Ultimate & I've noticed something which is somewhat annoying & conflicting with my syntax highlighting, as can be seen: As can be seen, when a keyword/function/variable/etc is highlighted all other instances of the aforementioned are highlighted too. This is somewhat annoying. Is there any way to disable this?

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• How to camelcase decibels?

  - by Roddy

  The standard abbreviations for decibels is "dB" (note the case!) So, if I have a variable, holding (for instance) a maximum dB value, how best to name it? maxDbValue maxdBValue maxDecibelValue something else? Each has disdvantages - #1 swaps the case of the unit, #2 doesn't clearly split max from dB, and #3 is verbose... I think #1 feels best, but...???

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• Search for content in functions with regex

  - by Marlun

  Hello, How would I with regular expression search for functions which contains the use of a global variable without running "global $var" first? The files looks like this: class TestClass { function correctFunc() { global $var; $name = $var->name; } function invalidFuncIWantToFind() { $age = $var->user->age; } } I want to find the function names of all the invalidFuncIWantToFind. At work this would have really speeded up our work but I didn't get how to do it.

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• in Xcode can you have it automatically highlight references to the selected object like in eclipse?

  - by Ayrad

  Hi All, In eclipse when you click on a method name a variable, or an object for example, the same ones are highlited in a specific color elsewhere in the code for easy finding. Is there a similar feature in Xcode?

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• Refactoring many nested ifs or chained if statements

  - by Icarus

  Hi, I have an object with large number of similar fields (like more than 10 of them) and I have to assign them values from an array of variable length. The solution would be either a huge nested bunch of ifs based on checking length of array each time and assigning each field OR a chain of ifs checking on whether the length is out of bounds and assigning each time after that check. Both seem to be repetitive. Is there a better solution ?

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• How to format TSQL SELECT output in SQL Sever

  - by mohamadreza

  How to loop through a select statement results to have a formatted text? for example the select is like: select name from table and we want a variable @names like this: "name1,name2,name3" Database is SQL Server 2005

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• Extract external javascript query string/anchor value: file.js#foo=bar

  - by jfroom

  http://mycloud.net/js/file.js#foo=bar I'm trying to load a cross domain javascript file, and want to pass a variable along on the query string. I have seen the above '#' method used, but am unsure of how to extract the 'foo' value from within the file.js. Any clues how to handle this without the aid of server side help? Thanks.

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• Auto-Completion in Unix VI editor

  - by IllustratedInsomnia

  Hey guys, after using graphical IDE's like Visual Studio, I'm used to pressing CTRL+Space to auto-complete a variable or function name. Now, I know such a thing isn't completely possible in VI, but I heard there was a list of commands that could be mapped that allowed automatic completion of variables and functions in the current file opened. Does anyone know what this sequence is? Thanks in advance.

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• PHP Detect if any URL variables have been set

  - by zuk1

  Hey guys, it's kind of hard to explain but basically I want to detect if any variables have been set through the URL. So with my IF statement all of the following should return true: http://domain.com/index.php?m=100 http://domain.com/index.php?q=harhar http://domain.com/index.php?variable=poo&crazy=yes and all the following return false: http://domain.com/index.php http://domain.com/test.php http://domain.com/no_variables.php Any ideas?

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• Removing a Preceding Backslash from Apostrophes

  - by John

  Hello, When I add a comment using the variable below, apostrophes are printed with a backslash in front of them. How can I get rid of the backslashes? Thanks in advance, John Example of printed result: My roommate\'s brother\'s ex-girlfriend\'s aunt drive a Toyota. $comment = mysql_real_escape_string($_POST['comment']);

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• finding a letter in a string with jquery

  - by Ahmet vardar

  Hi, it looks very basic thing but i could not figure it out. var email = $("input#email").val(); how can i check if that email variable has @ letter ? Thanks

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• pthread and child process data sharing in C

  - by mustafabattal

  hi everyone, my question is somewhat conceptual, how is parent process' data shared with child process created by a "fork()" call or with a thread created by "pthread_create()" for example, are global variables directly passed into child process and if so, does modification on that variable made by child process effect value of it in parent process? i appreciate partial and complete answers in advance, if i'm missing any existing resource, i'm sorry, i've done some search on google but couldn't find good results thanks again for your time and answers

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• Javascript new object (function ) vs inline invocation

  - by Sheldon Ross

  Is there any considerations to determine which is better practice for creating an object with private members? var object = new function () { var private = "private variable"; return { method : function () { ..dosomething with private; } } } VS var object = function () { ... }(); Basically what is the difference between using NEW here, and just invoking the function immediately after we define it?

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• How does volatile actually work?

  - by FredOverflow

  Marking a variable as volatile in Java ensures that every thread sees the value that was last written to it instead of some stale value. I was wondering how this is actually achieved. Does the JVM emit special instructions that flush the CPU cashes or something?

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• How to see the contents of std::map in Visual C++ .NET (Visual Studio 2003) while debugging?

  - by shan23

  I need to see the contents of a std::map variable while debugging. However, if i click on it in the Autos/Locals Tab, I see implementation specific stuff, instead of the keys and its contents which I want to look at. Is there a work-around i'm missing ?

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