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Is it a good practice to use try-except-else in Python?
...xit
A commenter asked:
Say you have a method which pings an external API and you want to handle the exception at a class outside the API wrapper, do you simply return e from the method under the except clause where e is the exception object?
No, you don't return the exception, just reraise i...
Fragment Inside Fragment
... current versions of the Android Support package -- or native fragments on API Level 17 and higher -- you can nest fragments, by means of getChildFragmentManager(). Note that this means that you need to use the Android Support package version of fragments on API Levels 11-16, because even though the...
Remove elements from collection while iterating
...books.removeIf(b -> b.getIsbn().equals(other));
Or use the new stream API:
ISBN other = new ISBN("0-201-63361-2");
List<Book> filtered = books.stream()
.filter(b -> b.getIsbn().equals(other))
.collect(Collectors.toList());
In thi...
Insert code into the page context using a content script
...e page context (in your case it's the state() method).
Note in case chrome API is needed:
Since chrome.* APIs can't be used in the exposed page script directly, you have to use them in the content script and communicate to the exposed page script via a special DOM CustomEvent handler, example one an...
Reimport a module in python while interactive
...y/importlib.html#importlib.reload
But be aware that this library had some API-changes with the last two minor versions.
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How to build & install GLFW 3 and use it in a Linux project
...on this link
http://glad.dav1d.de/#profile=core&specification=gl&api=gl%3D3.3&api=gles1%3Dnone&api=gles2%3Dnone&api=glsc2%3Dnone&language=c&loader=on
and then click on the "Generate" button at the bottom right corner of the website and download the zip file. Extract it...
Programmatically open Maps app in iOS 6
...
Here's the official Apple way:
// Check for iOS 6
Class mapItemClass = [MKMapItem class];
if (mapItemClass && [mapItemClass respondsToSelector:@selector(openMapsWithItems:launchOptions:)])
{
// Create an MKMapItem to pass to the Maps app
CLLocationCoordinate2D coor...
Getting an empty JQuery object
...of jQuery, this would return a set containing the document node.
Source: api.jquery.com
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SQL injection that gets around mysql_real_escape_string()
...e. This sets the character set ON THE SERVER. If we used the call to the C API function mysql_set_charset(), we'd be fine (on MySQL releases since 2006). But more on why in a minute...
The Payload
The payload we're going to use for this injection starts with the byte sequence 0xbf27. In gbk, that'...
Asynchronous vs Multithreading - Is there a difference?
...s the event to your application.
Frequently higher-level abstractions and APIs don't expose the underlying asynchronous API's available from the OS and the underlying hardware. In those cases it's usually easier to create threads to do asynchronous operations, even if the spawned thread is just wa...