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What does 'super' do in Python?
...lass, you want other classes to be able to use it. super() makes it easier for other classes to use the class you're writing.
As Bob Martin says, a good architecture allows you to postpone decision making as long as possible.
super() can enable that sort of architecture.
When another class subcla...
How to convert PascalCase to pascal_case?
...
Try this on for size:
$tests = array(
'simpleTest' => 'simple_test',
'easy' => 'easy',
'HTML' => 'html',
'simpleXML' => 'simple_xml',
'PDFLoad' => 'pdf_load',
'startMIDDLELast' => 'start_middle_last',
'AS...
How to list branches that contain a given commit?
...m a patch you thought you had applied, or you just want to check if commit for your favorite open source project that reduces memory usage by 75% is in yet.
$ git log -1 tests
commit d590f2ac0635ec0053c4a7377bd929943d475297
Author: Nick Quaranto <nick@quaran.to>
Date: Wed Apr 1 20:38:59 200...
__getattr__ on a module
...tattribute__. Dunder methods had previously worked on modules - you could, for example, use a module as a context manager simply by defining __enter__ and __exit__, before those tricks broke.
Recently some historical features have made a comeback, the module __getattr__ among them, and so the exis...
How to change the CHARACTER SET (and COLLATION) throughout a database?
...
It is better to do the following for full utf8 support ALTER DATABASE <database_name> CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci. You should do the same for the other two statements.
– Greeso
Nov 23 '15 at 1...
How to use a dot “.” to access members of dictionary?
...rgs, **kwargs):
super(Map, self).__init__(*args, **kwargs)
for arg in args:
if isinstance(arg, dict):
for k, v in arg.iteritems():
self[k] = v
if kwargs:
for k, v in kwargs.iteritems():
self[k] = v
...
Convert SVG to image (JPEG, PNG, etc.) in the browser
...load the SVG into memory and then paint it into a canvas, without the need for Canvg, which is a pretty large library because it handles all the SVG parsing that an SVG-supporting browser already provides for free. I'm not sure if this satisfies the original use-case, but if so, then see this resour...
The tilde operator in Python
...eration, in which all the bits of the input data are reversed.
In Python, for integers, the bits of the twos-complement representation of the integer are reversed (as in b <- b XOR 1 for each individual bit), and the result interpreted again as a twos-complement integer. So for integers, ~x is ...
How do I read any request header in PHP
...
apache_request_headers()
<?php
$headers = apache_request_headers();
foreach ($headers as $header => $value) {
echo "$header: $value <br />\n";
}
ELSE: In any other case, you can use (userland implementation):
<?php
function getRequestHeaders() {
$headers = array();
...
What's the difference between :: (double colon) and -> (arrow) in PHP?
...cial cases, it's used to access instance members).
In general, :: is used for scope resolution, and it may have either a class name, parent, self, or (in PHP 5.3) static to its left. parent refers to the scope of the superclass of the class where it's used; self refers to the scope of the class whe...