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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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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&...
Naming of ID columns in database tables
... does this!)and forget to change the alias in the join condition.
So you now have
select t1.field1, t2.field2, t3.field3
from table1 t1
join table2 t2 on t1.id = t2.table1id
join table3 t3 on t1.id = t3.table2id
when you meant
select t1.field1, t2.field2, t3.field3
from table1 t1
join table...
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 '...
How to get the nvidia driver version from the command line?
...y not be the version that is actually running as part of your kernel right now.
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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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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 do *args and **kwargs mean? [duplicate]
...t an arbitrary number of arguments and/or keyword arguments.
For example, if you wanted to write a function that returned the sum of all its arguments, no matter how many you supply, you could write it like this:
def my_sum(*args):
return sum(args)
It’s probably more commonly used in objec...
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 <...
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 ...