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How do I create a namespace package in Python?
...but the old pkgutil explicit namespace package method has been extended to include implicit namespace packages.
If you have an existing regular package that has an __init__.py like this:
from pkgutil import extend_path
__path__ = extend_path(__path__, __name__)
... the legacy behavior is to add ...
C++ templates Turing-complete?
...
Example
#include <iostream>
template <int N> struct Factorial
{
enum { val = Factorial<N-1>::val * N };
};
template<>
struct Factorial<0>
{
enum { val = 1 };
};
int main()
{
// Note this va...
How to shuffle a std::vector?
...
From C++11 onwards, you should prefer:
#include <algorithm>
#include <random>
auto rng = std::default_random_engine {};
std::shuffle(std::begin(cards_), std::end(cards_), rng);
Live example on Coliru
Make sure to reuse the same instance of rng throu...
Unzip files programmatically in .net
...fully on many projects. I know it's a third party tool, but source code is included and could provide some insight if you chose to reinvent the wheel here.
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How to check if a DateTime occurs today?
...fter a short time. So maybe it would be best to keep the exact story date (including time, preferably UTC) and check if less than 24 hours (or whatever) have passed, which is simple (dates can be subtracted, which gives you a TimeSpan with a TotalHours or TotalDays property).
...
R: rJava package install failing
... me on Ubuntu 12.04 and R version 3.0
cd /usr/lib/jvm/java-6-sun-1.6.0.26/include
this is the directory that has jni.h
Next create a soft link to another required header file (I'm too lazy to find out how to include more than one directory in the JAVA_CPPFLAGS option below):
sudo ln -s linux/jn...
How can I load an object into a variable name that I specify from an R data file?
...DS and readRDS, correspondingly, save and restore all object's attributes, including ones created by an application (via attr)? I tried to use this approach instead of save and load, trying to find a workaround for my problem. Howver, it doesn't seem to be the case, unless I'm doing something wrong:...
Best way to parse command line arguments in C#? [closed]
...he property name.
Value conversion: Uses the powerful ConvertEx class also included in BizArk to convert values to the proper type.
Boolean flags: Flags can be specified by simply using the argument (ex, /b for true and /b- for false) or by adding the value true/false, yes/no, etc.
Argument arrays: ...
virtualenv --no-site-packages and pip still finding global packages?
...I know this is a really (really) old post, but I have searched everywhere, including asking some of my own questions on SO, and I cannot figure out how to get --no-site-packages to work. I'm getting close to just wiping ubuntu and seeing if that fixes things. I thought initially that I was having th...