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Difference between staticmethod and classmethod
What is the difference between a function decorated with @staticmethod and one decorated with @classmethod ?
27 Answers
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Call a python function from jinja2
...nd I want to call a python function as a helper, using a similar syntax as if I were calling a macro. jinja2 seems intent on preventing me from making a function call, and insists I repeat myself by copying the function into a template as a macro.
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C++中判断文件、目录是否存在的几种方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...介绍几种方法。
首先关于判断文件的存在性：
一、ifstream
在C++中，可以利用ifstream文件输入流，当我们直接使用ifstream来创建文件输入流的时候，如果文件不存在则流创建失败。
ifstream fin("hello.txt");
if (!fin)
{
std::cout <...
Repeat string to certain length
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Pillmod's / Pillmuncher's code is more beautiful, but unfortunately slower than Scheirer's code, because adding to an already long string is an expensive operation (the Python runtime will have to copy the string to a new memory location), while truncating a temporary ...
uint8_t vs unsigned char
...ll be storing small numbers, rather than a character.
Also it looks nicer if you're using other typedefs such as uint16_t or int32_t.
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In Python, how do I index a list with another list?
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+1 If the indexing list is arbitrary, then a list comrpehension is the way. I think though that, when possible, which seems not to be the case here, slices are even faster.
– Jaime
Jun 18 '...
Python: access class property from string [duplicate]
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x = getattr(self, source) will work just perfectly if source names ANY attribute of self, including the other_data in your example.
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How can I uninstall an application using PowerShell?
...ality using PowerShell to uninstall an existing application ? Or to check if the application is installed?
12 Answers
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What does #defining WIN32_LEAN_AND_MEAN exclude exactly?
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Directly from the Windows.h header file:
#ifndef WIN32_LEAN_AND_MEAN
#include <cderr.h>
#include <dde.h>
#include <ddeml.h>
#include <dlgs.h>
#ifndef _MAC
#include <lzexpand.h>
#include <mmsystem.h&...
How to use Boost in Visual Studio 2010
...e Nate's answer is pretty good already, I'm going to expand on it more specifically for Visual Studio 2010 as requested, and include information on compiling in the various optional components which requires external libraries.
If you are using headers only libraries, then all you need to do is to ...