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What does 'super' do in Python?
...om the parent class that follows Child in the instance's Method Resolution Order (MRO).
If the instance is a subclass of Child, there may be a different parent that comes next in the MRO.
Explained simply
When you write a class, you want other classes to be able to use it. super() makes it easi...
How to concatenate two MP4 files using FFmpeg?
... added | sort to sort the files alphabetically; because find reads them in order as saved on filesystem. Works also for files with whitespaces.
– erik
Dec 2 '16 at 14:15
...
Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
...t of stored procs have generally been from the following (in no particular order):
Pre-parsed SQL
Pre-generated query execution plan
Reduced network latency
Potential cache benefits
Pre-parsed SQL -- similar benefits to compiled vs. interpreted code, except on a very micro level.
Still an adva...
Detecting 'stealth' web-crawlers
...s, you can put a div under another, with CSS (placing it first in the draw order) and possibly setting the z-order. A bot could not ignore that, without parsing all your javascript to see if it is a menu. To some extent, links inside invisible DIV elements also can't be ignored without the bot par...
Query EC2 tags from within instance
...des them, or add an apt or yum command at the beginning of the script.
In order to access EC2 tags you need a policy like this one in your instance's IAM role:
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "Stmt1409309287000",
"Effect": "Allow",
"Action": [
"...
Populate a Razor Section From a Partial
...Builder sb = new StringBuilder();
foreach (var item in requiredScripts.OrderByDescending(i => i.Priority))
{
sb.AppendFormat("<script src=\"{0}\" type=\"text/javascript\"></script>\n", item.Path);
}
return new HtmlString(sb.ToString());
}
public class ResourceI...
Is there a “standard” format for command line/shell help text?
...so, for example, -lst is equivalent to -t -l -s.
Options can appear in any order; thus -lst is equivalent to -tls.
Options can appear multiple times.
Options precede other nonoption
arguments: -lst nonoption.
The -- argument terminates options.
The - option is typically used to represent one of the ...
Regex to validate date format dd/mm/yyyy
... '/', or nothing as separators between year, month, and day, no matter the order.
MMddyyyy:
^(((0[13-9]|1[012])[-/]?(0[1-9]|[12][0-9]|30)|(0[13578]|1[02])[-/]?31|02[-/]?(0[1-9]|1[0-9]|2[0-8]))[-/]?[0-9]{4}|02[-/]?29[-/]?([0-9]{2}(([2468][048]|[02468][48])|[13579][26])|([13579][26]|[02468][048]|0[0...
What is sandboxing?
...
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...
Visual Studio Project vs. Solution
...l be compiled into an executable program or web site, or else is needed in order to perform the compilation. A project also contains all the compiler settings and other configuration files that might be needed by various services or components that your program will communicate with.
You don't have ...