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Python: Tuples/dictionaries as keys, select, sort
Suppose I have quantities of fruits of different colors, e.g., 24 blue bananas, 12 green apples, 0 blue strawberries and so on.
I'd like to organize them in a data structure in Python that allows for easy selection and sorting. My idea was to put them into a dictionary with tuples as keys, e.g.,
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How do I properly clean up Excel interop objects?
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Excel does not quit because your application is still holding references to COM objects.
I guess you're invoking at least one member of a COM object without assigning it to a variable.
For me it was the excelApp.Worksheets object which I direc...
How to undo 'git reset'?
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Short answer:
git reset 'HEAD@{1}'
Long answer:
Git keeps a log of all ref updates (e.g., checkout, reset, commit, merge). You can view it by typing:
git reflog
Somewhere in this list is the commit that you lost. Let's say you just t...
对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...安装
1、最小化安装FreeBSD6.2RELEASE
2、配置内核：
jiulongproxynew# cd /usr/src/sys/i386/conf
jiulongproxynew# cp GENERIC funpower
jiulongproxynew# ee funpower
修改内核配置文件，将不需要的选项（如网卡）之类的前面打#，然后按esc并按a保存退出，...
What is a 'semantic predicate' in ANTLR?
...LR 3
A semantic predicate is a way to enforce extra (semantic) rules upon grammar
actions using plain code.
There are 3 types of semantic predicates:
validating semantic predicates;
gated semantic predicates;
disambiguating semantic predicates.
Example grammar
Let's say you have a block of t...
What is the difference between Strategy design pattern and State design pattern?
What are the differences between the Strategy design pattern and the State design pattern? I was going through quite a few articles on the web but could not make out the difference clearly.
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window.close and self.close do not close the window in Chrome
...script any window that is not script created. That is patently false but regardless it is supposed to still do it, even if it requires to pop up an alert to confirm. These are not happening.
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Reduce, fold or scan (Left/Right)?
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In general, all 6 fold functions apply a binary operator to each element of a collection. The result of each step is passed on to the next step (as input to one of the binary operator's two arguments). This way we can cumulate a result.
reduceLeft and reduceRight c...
WPF ToolBar: how to remove grip and overflow
In a nested WPF ToolBarPanel-ToolBar-Menu we want to get rid of the grip handle to the left and the overflow area to the right. they are both grayed out, but we'd like them to not be displayed at all.
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What's the point of the X-Requested-With header?
JQuery and other frameworks add the following header:
3 Answers
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