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How can I propagate exceptions between threads?
We have a function which a single thread calls into (we name this the main thread). Within the body of the function we spawn multiple worker threads to do CPU intensive work, wait for all threads to finish, then return the result on the main thread.
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Execute code when Django starts ONCE only?
...point hook for Django projects, which will work for Django >= 1.4.
Basically, you can use <project>/wsgi.py to do that, and it will be run only once, when the server starts, but not when you run commands or import a particular module.
import os
os.environ.setdefault("DJANGO_SETTINGS_MODUL...
How to access SOAP services from iPhone
...
I've historically rolled my own access at a low level (XML generation and parsing) to deal with the occasional need to do SOAP style requests from Objective-C. That said, there's a library available called SOAPClient (soapclient) that is...
Combining a class selector and an attribute selector with jQuery
... interpreted as the descendant selector.
Your second selector, like you said, looks for elements with either the attribute value, or the class, or both.
The comma is being interpreted as the multiple selector operator — whatever that means (CSS selectors don't have a notion of "operators"; the co...
What are POD types in C++?
... (3.9.2) and cv-qualified versions of these types (3.9.3) are collectively caller scalar types. Scalar types, POD-struct types, POD-union types (clause 9), arrays of such types and cv-qualified versions of these types (3.9.3) are collectively called POD types"
9(4): "A POD-struct is an aggregate cla...
Node.js: how to consume SOAP XML web service
...,
'SOAPAction':"http://Main.Service/AUserService/GetUsers"
}
};
let callback = (error, response, body) => {
if (!error && response.statusCode == 200) {
console.log('Raw result', body);
var xml2js = require('xml2js');
var parser = new xml2js.Parser({explicitArray: fals...
How to print an exception in Python?
...ept Exception:
traceback.print_exc()
Output:
Traceback (most recent call last):
File "C:\scripts\divide_by_zero.py", line 4, in <module>
1/0
ZeroDivisionError: division by zero
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Application_Error not firing when customerrors = “On”
... the HandleErrorAttribute tells MVC to look for an Error view and it never calls the Application_Error() method. I couldn't find documentation of this but it is explained in this answer on programmers.stackexchange.com.
To get the ApplicationError() method called for every unhandled exception, simp...
Python Process Pool non-daemonic?
... to create a python Pool that is non-daemonic? I want a pool to be able to call a function that has another pool inside.
8 ...
Convert XML to JSON (and back) using Javascript
...representation, and XML is just used for XSLT.. the use of which is not my idea! :)
– Jason Suárez
Nov 20 '09 at 23:29
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