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Python nested functions variable scoping [duplicate]
I've read almost all the other questions about the topic, but my code still doesn't work.
10 Answers
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.net implementation of bcrypt
...han BCrypt.dll or it will conflict with the new Windows API in Vista that calls functions in a 'bcrypt.dll', so if you have Bcrypt.net as Bcrypt.dll in your web app bin/ directory Windows won't be able to find the correct dll and you will get some cryptic errors.
– thelsdj
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How does functools partial do what it does?
...xtend(extra_args)
return func(*args)
return wrapper
So, by calling partial(sum2, 4) you create a new function (a callable, to be precise) that behaves like sum2, but has one positional argument less. That missing argument is always substituted by 4, so that partial(sum2, 4)(2) == sum2...
Pass Variables by Reference in Javascript
... it means that it's possible to pass a simple variable in such a way as to allow a function to modify that value in the calling context. So:
function swap(a, b) {
var tmp = a;
a = b;
b = tmp; //assign tmp to b
}
var x = 1, y = 2;
swap(x, y);
alert("x is " + x + ", y is " + y); // "...
`from … import` vs `import .` [duplicate]
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I just tried import urllib.request and it doesn't work at all (python 2.6.5 Ubuntu).
– tkone
Feb 24 '12 at 23:33
6
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Package objects
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Normally you would put your package object in a separate file called package.scala in the package that it corresponds to. You can also use the nested package syntax but that is quite unusual.
The main use case for package object...
PHP convert XML to JSON
...passed, and various version fixes, but on PHP 5.6.30, this method produces ALL of the data. Attributes are stored in the array under the @attributes key, so it works absolutely flawlessly, and beautifully. 3 short lines of code solve my problem beautifully.
– AlexanderMP
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Function in JavaScript that can be called only once
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If by "won't be executed" you mean "will do nothing when called more than once", you can create a closure:
var something = (function() {
var executed = false;
return function() {
if (!executed) {
executed = true;
// do something
}
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What is “rvalue reference for *this”?
Came across a proposal called "rvalue reference for *this" in clang's C++11 status page .
3 Answers
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What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?
...e. Now the software has a few dependencies. I compiled them myself and installed them on my system.
4 Answers
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