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Ruby equivalent of virtualenv?
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Neither sandbox, RVM, nor rbenv manage the versions of your app's gem dependencies. The tool for that is bundler.
use a Gemfile as your application's dependency declaration
use bundle install to install explicit versions of these dependencies into an isolated location
use bundle exe...
When are C++ macros beneficial? [closed]
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As wrappers for debug functions, to automatically pass things like __FILE__, __LINE__, etc:
#ifdef ( DEBUG )
#define M_DebugLog( msg ) std::cout << __FILE__ << ":" << __LINE__ << ": " << msg
#else
#define M_DebugLog( msg )
#endif
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Camera access through browser
...d need to get camera access through the web browser without being a native app. We are having trouble making this work in iOS. Is anyone aware of a solution for this?
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How do you properly determine the current script directory in Python?
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os.path.dirname(os.path.abspath(__file__))
is indeed the best you're going to get.
It's unusual to be executing a script with exec/execfile; normally you should be using the module infrastructure to load scripts. If you must use these methods, I suggest ...
How to get a ListBox ItemTemplate to stretch horizontally the full width of the ListBox?
...s because the IT Admin staff couldn't figure out how to deploy WPF/Winform apps using Active Directory, and we wanted a clean deployment scenario that didn't depend on us Sneakernetting the updates.
– Richard B
Jul 23 '12 at 13:53
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Best way to randomize an array with .NET
...o remarks that System.Random "isn't threadsafe" and "only suitable for toy apps" due to returning a time-based sequence: as used in my example, Random() is perfectly thread-safe, unless you're allowing the routine in which you randomize the array to be re-entered, in which case you'll need something...
Share Large, Read-Only Numpy Array Between Multiprocessing Processes
...n
from multiprocessing import Process
import sharedmem
import numpy
def do_work(data, start):
data[start] = 0;
def split_work(num):
n = 20
width = n/num
shared = sharedmem.empty(n)
shared[:] = numpy.random.rand(1, n)[0]
print "values are %s" % shared
processes = [Proc...
How can I get dictionary key as variable directly in Python (not by searching from value)?
...f you want to print key and value, use the following:
for key, value in my_dict.iteritems():
print key, value
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Can local storage ever be considered secure? [closed]
I'm required to develop a web application that will function offline for long periods. In order for this to be viable I cannot avoid saving sensitive data (personal data but not the kind of data you would only store hashed) in local storage.
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Compare object instances for equality by their attributes
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You should implement the method __eq__:
class MyClass:
def __init__(self, foo, bar):
self.foo = foo
self.bar = bar
def __eq__(self, other):
if not isinstance(other, MyClass):
# don't attempt to compare against ...