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Python argparse mutual exclusive group
..._mutually_exclusive_group doesn't make an entire group mutually exclusive. It makes options within the group mutually exclusive.
What you're looking for is subcommands. Instead of prog [ -a xxxx | [-b yyy -c zzz]], you'd have:
prog
command 1
-a: ...
command 2
-b: ...
-c: ...
To...
C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...m/xianyunhe/archive/2011/09/25/2190485.html
http://blog.sina.com.cn/s/blog_6e51df7f01015cci.html
感谢原作者的无私奉献。
通过VC实现对Excel表格的操作的方法有多种，如：通过ODBC数据库实现，通过解析Excel表格文件，通过OLE/COM的实现。本文主要研...
What are the applications of binary trees?
...ess - they are not a data structure, but a family of data structures, all with different performance characteristics. While it is true that unbalanced binary trees perform much worse than self-balancing binary trees for searching, there are many binary trees (such as binary tries) for which "balanc...
Installing Google Protocol Buffers on mac
...ocol Buffers (protobuf-2.4.1) on mac using Terminal command line. I tried with brew install protobuf , but the latest version 2.5.0 has been installed. Is it possible to install the older version from terminal.
...
Scala type programming resources
...
Overview
Type-level programming has many similarities with traditional, value-level programming. However, unlike value-level programming, where the computation occurs at runtime, in type-level programming, the computation occurs at compile time. I will try to draw parallel...
Is bool a native C type?
...tdbool.h (which expectedly resolves to _Bool). Objects of type _Bool hold either 0 or 1, while true and false are also macros from stdbool.h.
Note, BTW, that this implies that C preprocessor will interpret #if true as #if 0 unless stdbool.h is included. Meanwhile, C++ preprocessor is required to na...
Render HTML to PDF in Django site
For my django powered site, I am looking for an easy solution to convert dynamic html pages to pdf.
8 Answers
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Generic deep diff between two objects
...
I wrote a little class that is doing what you want, you can test it here.
Only thing that is different from your proposal is that I don't consider
[1,[{c: 1},2,3],{a:'hey'}]
and
[{a:'hey'},1,[3,{c: 1},2]]
to be same, because I think ...
How can I save a screenshot directly to a file in Windows? [closed]
... public void Main(string[] args)
{
try
{
Bitmap capture = CaptureScreen.GetDesktopImage();
string file = Path.Combine(Environment.CurrentDirectory, "screen.gif");
ImageFormat format = ImageFormat.Gif;
capture.Save(file, format);
...
Minimizing NExpectation for a custom distribution in Mathematica
...nctions try to find a minimum to the function. Finding a minimum requires either to set the first derivative of the function zero and solve for a solution. Since your function is quite complicated (and probably not differentiable), the second possibility is to do a numerical minimization, which requ...