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How to find out the number of CPUs using python
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If you have python with a version >= 2.6 you can simply use
import multiprocessing
multiprocessing.cpu_count()
http://docs.python.org/library/multiprocessing.html#multiprocessing.cpu_count
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How do I include inline JavaScript in Haml?
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:javascript
$(document).ready( function() {
$('body').addClass( 'test' );
} );
Docs: http://haml.info/docs/yardoc/file.REFERENCE.html#javascript-filter
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Resizing an image in an HTML5 canvas
...formance, right? Behold, the thumbnail generating code:
// returns a function that calculates lanczos weight
function lanczosCreate(lobes) {
return function(x) {
if (x > lobes)
return 0;
x *= Math.PI;
if (Math.abs(x) < 1e-16)
return 1;
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Should I use PATCH or PUT in my REST API?
...esign my rest endpoint with the appropriate method for the following scenario.
6 Answers
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What is the difference between customErrors and httpErrors?
What is the difference between the customErrors and httpErrors sections of the web.config file in ASP.NET MVC applications?
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Strange out of memory issue while loading an image to a Bitmap object
...on to launch the image preview (load an image off the SD card) the application returns from the activity back to the listview activity to the result handler to relaunch my new activity which is nothing more than an image widget.
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Strip HTML from strings in Python
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I always used this function to strip HTML tags, as it requires only the Python stdlib:
For Python 3:
from io import StringIO
from html.parser import HTMLParser
class MLStripper(HTMLParser):
def __init__(self):
super().__init__()
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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
I successfully implemented the OpenCV square-detection example in my test application, but now need to filter the output, because it's quite messy - or is my code wrong?
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FixedThreadPool vs CachedThreadPool: the lesser of two evils
...f tasks. Originally, I used a FixedThreadPool because this similar question suggested they were better suited for longer lived tasks and with my very limited knowledge of multithreading, I considered the average life of the threads (several minutes) " long lived ".
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Modify request parameter with servlet filter
An existing web application is running on Tomcat 4.1. There is an XSS issue with a page, but I can't modify the source. I've decided to write a servlet filter to sanitize the parameter before it is seen by the page.
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