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How do I implement __getattribute__ without an infinite recursion error?
...tribute__(self, name)
This works because object (in this example) is the base class. By calling the base version of __getattribute__ you avoid the recursive hell you were in before.
Ipython output with code in foo.py:
In [1]: from foo import *
In [2]: d = D()
In [3]: d.test
Out[3]: 0.0
In [4]...
Pimpl idiom vs Pure virtual class interface
...Clone" method is usually more appropriate. Examples: A Socket class, a Database class, a "policy" class, anything that would be a "closure" in a functional language.
Both pImpl and pure abstract base class are techniques to reduce compile time dependencies.
However, I only ever use pImpl to imple...
How to sort Map values by key in Java?
...
I'm trying to use Treemap and sort String keys based on length. I find I'm getting inconsistent retrieval results. Apparently because TreeMap considers a compareTo result of 0 as "equals"? Not sure how to use it in this case.
– Marc
...
Resize UIImage by keeping Aspect ratio and width
...ght) for RECT while resizing. But in my project, I need to resize the view based on the Width alone, Height should be taken automatically based on the aspect ratio.
anyone help me to achieve this.
...
ASP.NET MVC - Set custom IIdentity or IPrincipal
...let me know.
Additionally to make the access even easier you can create a base controller and override the returned User object (HttpContext.User):
public class BaseController : Controller
{
protected virtual new CustomPrincipal User
{
get { return HttpContext.User as CustomPrincip...
Set up DNS based URL forwarding in Amazon Route53 [closed]
... below is still valid and might be helpful to understand the cause for DNS based URL forwarding not being available via Amazon Route 53 out of the box, I highly recommend checking out Vivek M. Chawla's utterly smart indirect solution via the meanwhile introduced Amazon S3 Support for Website Redirec...
Amazon SimpleDB vs Amazon DynamoDB
...eferences Werner Vogel's Amazon DynamoDB – a Fast and Scalable NoSQL Database Service Designed for Internet Scale Applications as well, which is indeed an elaborate and thus highly recommended read concerning the History of NoSQL at Amazon in general and Dynamo in particular; it contains many more...
What exactly is Apache Camel?
...f new patterns and blueprints for how we could best design large component-based systems, where components can be running on the same process or in a different machine.
They basically propose that we structure our system to be message oriented -- where components communicate with each others using ...
Why does the lock object have to be static?
...ity. Sometimes that is static. More often, IMO, it isn't - but is instance based.
The main time you see a static lock is for a global cache, or for deferred loading of global data / singletons. And in the latter, there are better ways of doing it anyway.
So it really depends: how is Locker used in...
Find the min/max element of an Array in JavaScript
...ed website... and testing in Firefox 51.0.0 / Mac OS X 10.12.0, the reduce-based approach is 30% slower than loop-based ... very different results
– Pierpaolo Cira
Feb 21 '17 at 9:37
...