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Why return NotImplemented instead of raising NotImplementedError
...ereas NotImplemented doesn't get raised and can be used in further tests.
http://jcalderone.livejournal.com/32837.html
To summarise that link:
"NotImplemented signals to the runtime that it should ask someone else to satisfy the operation. In the expression a == b, if a.__eq__(b) returns NotIm...
Linux: copy and create destination dir if it does not exist
...can do this with the --parents flag of cp. From the info page (viewable at http://www.gnu.org/software/coreutils/manual/html_node/cp-invocation.html#cp-invocation or with info cp or man cp):
--parents
Form the name of each destination file by appending to the target
directory a slash a...
Batch Renaming of Files in a Directory
...
Try: http://www.mattweber.org/2007/03/04/python-script-renamepy/
I like to have my music, movie, and
picture files named a certain way.
When I download files from the
internet, they usually don’t follow my
naming con...
MFC CListCtrl使用方法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...e); //设置扩展风格
注：listview的style请查阅msdn
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wceshellui5/html/wce50lrflistviewstyles.asp
3. 插入数据
m_list.InsertColumn( 0, "ID", LVCFMT_LEFT, 40 ); //插入列
m_list.InsertColu...
What is the type of lambda when deduced with “auto” in C++11?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
What kind of leaks does automatic reference counting in Objective-C not prevent or minimize?
...uckily I came across the following blog post and was able to correct them: http://www.reigndesign.com/blog/debugging-retain-cycles-in-objective-c-four-likely-culprits/
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Pickle or json?
...
You might also find this interesting, with some charts to compare: http://kovshenin.com/archives/pickle-vs-json-which-is-faster/
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PHP Function Comments
... class (if any)...
*
* @copyright 2006 Zend Technologies
* @license http://www.zend.com/license/3_0.txt PHP License 3.0
* @version Release: @package_version@
* @link http://dev.zend.com/package/PackageName
* @since Class available since Release 1.2.0
*/
Sample File:
&l...
Can I target all tags with a single selector?
...
It's not basic css, but if you're using LESS (http://lesscss.org), you can do this using recursion:
.hClass (@index) when (@index > 0) {
h@{index} {
font: 32px/42px trajan-pro-1,trajan-pro-2;
}
.hClass(@index - 1);
}
.hClass(6);
Sass (http://sas...
how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...ition in that thinking.
There's an example of this in the documentation: http://www.postgresql.org/docs/9.3/static/plpgsql-control-structures.html, example 40-2 right at the bottom.
That's usually the easiest way. You can do some magic with rules, but it's likely going to be a lot messier. I'd re...