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How to get the parents of a Python class?
...
Use the following attribute:
cls.__bases__
From the docs:
The tuple of base classes of a class
object.
Example:
>>> str.__bases__
(<type 'basestring'>,)
Another example:
>>> class A(object):
... pass
...
>>> cl...
How to concatenate strings in django templates?
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Use with:
{% with "shop/"|add:shop_name|add:"/base.html" as template %}
{% include template %}
{% endwith %}
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How to save an HTML5 Canvas as an image on a server?
...ntext.stroke();
</script>
Convert canvas image to URL format (base64)
var dataURL = canvas.toDataURL();
Send it to your server via Ajax
$.ajax({
type: "POST",
url: "script.php",
data: {
imgBase64: dataURL
}
}).done(function(o) {
con...
Can media queries resize based on a div element instead of the screen?
I would like to use media queries to resize elements based on the size of a div element they are in. I cannot use the screen size as the div is just used like a widget within the webpage, and its size can vary.
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Mixin vs inheritance
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What is the difference between a mixin and inheritance?
A mix-in is a base class you can inherit from to provide additional functionality. Pseudocode example:
class Mixin:
def complex_method(self):
return complex_functionality(self)
The name "mix-in" indicates it is intended to b...
base64 encoded images in email signatures
... email clients. For email purposes be sure to read Shadow2531's answer.
Base-64 data is legal in an img tag and I believe your question is how to properly insert such an image tag.
You can use an online tool or a few lines of code to generate the base 64 string.
The syntax to source the image f...
Build the full path filename in Python
...ath name to a module. How do I build the file path from a directory name, base filename, and a file format string?
4 Answe...
What is the difference between a web API and a web service?
...SDL from which you can create client stubs automatically. Web Services are based on the SOAP protocol.
ASP.NET Web API is a newer Microsoft framework which helps you to build REST based interfaces. The response can be either JSON or XML, but there is no way to generate clients automatically because ...
MVC4 StyleBundle not resolving images
...e that with its own images folder, so I just specify 2 bundles, one for my base CSS and one for jQuery UI - which is maybe not uber-optimal in terms of requests, but life is short. Cheers!
– Tom W Hall
Jul 8 '12 at 22:41
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How do I implement interfaces in python?
... several uses for interfaces. Some of them are covered by Pythons Abstract Base Classes, introduced in Python 2.6. They are useful, if you want to make base classes that cannot be instantiated, but provide a specific interface or part of an implementation.
Another usage is if you somehow want to sp...