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Executing command line programs from within python [duplicate]
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The subprocess module is the preferred way of running other programs from Python -- much more flexible and nicer to use than os.system.
import subprocess
#subprocess.check_output(['ls', '-l']) # All that is technically needed...
print(subprocess.check_output(['ls', '-l']))
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Get connection string from App.config
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Since this is very common question I have prepared some screen shots from Visual Studio to make it easy to follow in 4 simple steps.
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fol...
NodeJS: How to decode base64 encoded string back to binary? [duplicate]
... and the following method should instead be used to construct a new buffer from a base64 encoded string:
var b64string = /* whatever */;
var buf = Buffer.from(b64string, 'base64'); // Ta-da
For Node.js v5.11.1 and below
Construct a new Buffer and pass 'base64' as the second argument:
var b64str...
to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
...e image get "flushed" back to the GPU. This round-trip of getting an image from the GPU, changing it, then uploading the whole image (or at least a comparatively large chunk of it) back to the GPU is rather slow. Also, the actual drawing that Quartz does, while really fast for what you are doing, is...
Concatenating two std::vectors
...{1,2,3,4,5};
std::vector<int> src{6,7,8,9,10};
// Move elements from src to dest.
// src is left in undefined but safe-to-destruct state.
dest.insert(
dest.end(),
std::make_move_iterator(src.begin()),
std::make_move_iterator(src.end())
);
// Print out concaten...
Android : difference between invisible and gone?
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From Documentation you can say that
View.GONE This view is invisible, and it doesn't take any space for
layout purposes.
View.INVISIBLE This view is invisible, but it still takes up space for layout purposes.
Lets clear th...
What is 'Context' on Android?
...xt(), getContext(), getBaseContext() or this (when in a class that extends from Context, such as the Application, Activity, Service and IntentService classes).
Typical uses of context:
Creating new objects:
Creating new views, adapters, listeners:
TextView tv = new TextView(getContext());
ListAd...
How to get a reference to current module's attributes in Python
...tion or method, this is the module
where it is defined, not the module
from which it is called).
http://docs.python.org/library/functions.html#globals
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Each for object? [duplicate]
...this:
1 . You want to check whether the attribute that you are finding is from the object itself and not from up the prototype chain. This can be checked with the hasOwnProperty function like so
for(var index in object) {
if (object.hasOwnProperty(index)) {
var attr = object[index];
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Thread vs ThreadPool
What is the difference between using a new thread and using a thread from the thread pool? What performance benefits are there and why should I consider using a thread from the pool rather than one I've explicitly created? I'm thinking specifically of .NET here, but general examples are fine.
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