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Creating a singleton in Python
...ey are separate and encapsulated. The metaclass implementation passes this test. The metaclass is responsible for enforcing the pattern and the created class and subclasses need not be aware that they are singletons. Method #1 fails this test, as you noted with "MyClass itself is a a function, not a...
Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
.../servlet/* instead. See also Servlet and path parameters like /xyz/{value}/test, how to map in web.xml?
@WebServlet works only on Servlet 3.0 or newer
In order to use @WebServlet, you only need to make sure that your web.xml file, if any (it's optional since Servlet 3.0), is declared conform Servl...
Python: Check if one dictionary is a subset of another larger dictionary
...a set-like view of the dict items. You can then use the <= operator to test if one view is a "subset" of the other:
d1.items() <= d2.items()
In Python 2.7, use the dict.viewitems() to do the same:
d1.viewitems() <= d2.viewitems()
In Python 2.6 and below you will need a different solu...
How to write a CSS hack for IE 11? [duplicate]
...ype html>
<html>
<head>
<title>IE10/11 Media Query Test</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<style>
@media all and (-ms-high-contrast:none)
{
.foo { color: green } /* IE10 */
*::...
Set transparent background using ImageMagick and commandline prompt
...ck 6.6.9-7 on Ubuntu 12.04.
What worked for me was the following:
convert test.png -transparent white transparent.png
That changed all the white in the test.png to transparent.
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Running script upon login mac [closed]
... (from the Actions/Utilities)
copy & paste your script into the window
test it
save somewhere (for example you can make an Applications folder in your HOME, you will get an your_name.app)
go to System Preferences -> Accounts -> Login items
add this app
test & done ;)
EDIT:
I've rec...
How to change MySQL column definition?
I have a mySQL table called test:
3 Answers
3
...
How to set current working directory to the directory of the script in bash?
...l characters won't break the command. Try e.g. create the file via touch "-test" and touch -- -test, then remove the file via rm "-test" and rm -- -test, and see the difference.
– kenorb
Jun 12 '14 at 8:15
...
Does a finally block always get executed in Java?
...ple code:
public static void main(String[] args) {
System.out.println(Test.test());
}
public static int test() {
try {
return 0;
}
finally {
System.out.println("finally trumps return.");
}
}
Output:
finally trumps return.
0
...
Re-enabling window.alert in Chrome
...esult in us spending two weeks to go through each one of these cases. Plus testing, and we are pushing for a release right now. So this allows us to notify the user that they have managed to check that box in firefox or chrome.
– DeadlyChambers
May 19 '14 at 1...