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How Python web frameworks, WSGI and CGI fit together
...s to use CGI to run a script. Another way to respond is to simply serve a file.
In the case of CGI, Apache prepares an environment and invokes the script through the CGI protocol. This is a standard Unix Fork/Exec situation -- the CGI subprocess inherits an OS environment including the socket a...
How to create the most compact mapping n → isprime(n) up to a limit N?
... the internet with N stretching up to at least fifty million. Download the files and use them, it's likely to be much faster than any other method you'll come up with.
If you want an actual algorithm for making your own primes, Wikipedia has all sorts of good stuff on primes here, including links t...
“Remote System Explorer Operation” causing freeze for couple of seconds
...em Explorer Operation" in Progress view of Eclipse after each save of Java file (so it might be related to compiling?). It makes the Eclipse unusable for 1 to 10 seconds. In some projects (of about the same size) it's quicker, in some it's slower.
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Add a default value to a column through a migration
...to was added in Rails 5+ in this commit: github.com/rails/rails/pull/20018/files
– Joshua Pinter
Dec 29 '18 at 19:03
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Creating and throwing new exception
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To call a specific exception such as FileNotFoundException use this format
if (-not (Test-Path $file))
{
throw [System.IO.FileNotFoundException] "$file not found."
}
To throw a general exception use the throw command followed by a string.
throw "Error t...
Get last field using awk substr
I am trying to use awk to get the name of a file given the absolute path to the file.
For example, when given the input path /home/parent/child/filename I would like to get filename
I have tried:
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Split string with dot as delimiter
...t consider it as a regex meta character. Here's an example :
String[] fn = filename.split("\\.");
return fn[0];
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Why is Spring's ApplicationContext.getBean considered bad?
...mpile time but matches one of the implementations defined in my spring.xml file.
– Alex Worden
Jan 25 '11 at 20:20
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Compiling Java 7 code via Maven
My pom file lists
18 Answers
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Objective-C pass block as parameter
...d functions to perform anything in background and on main queue.
blocks.h file
void performInBackground(void(^block)(void));
void performOnMainQueue(void(^block)(void));
blocks.m file
#import "blocks.h"
void performInBackground(void(^block)(void)) {
if (nil == block) {
return;
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