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deciding among subprocess, multiprocessing, and thread in Python?
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To understand how this is possible one should read about the features of select() (which can be built around the select() or poll() or similar OS system calls).
Basically it's all driven by the ability to make a request of the OS to sleep pending any activity on a list of file descriptors or some ...
Why is lazy evaluation useful?
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@Viclib A selection algorithm for finding the top k elements out of n is O(n + k log k). When you implement quicksort in a lazy language, and only evaluate it far enough to determine the first k elements (stopping evaluation after), i...
AWS: How to disable all services?
...console.aws.amazon.com/rds/home?region=us-east-1
Go to topright of page. Select the correct server location
The rest is straightforward from here
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Optimize Font Awesome for only used classes
...e; done
You then use this with FontSquirrel in the expert mode where you select custom subsetting: http://www.fontsquirrel.com/tools/webfont-generator
In Unicode ranges enter the comma separated values from above.
Then to remove unnecessary stuff from the CSS:
egrep "@fa-var-($fa_icons);" less/...
What is the difference between sql and mysql [closed]
...onal Database Management Systems allow the user to add, remove, update, or select records. Things like MySQ are the actual Management Systems which allow you to store and retrieve your data, whereas SQL is the actual language to do so.
The basic SQL is somewhat universal - Selects usually look the ...
MSTest copy file to test run folder
...ile in Visual Studio, right click on the Solution and choose New Item, and select the TestSettings template. To use the TestSettings file at the command prompt of mstest.exe add the option, /testsettings:C:\Src\mySolution\myProject\local.testsettings (or add as an extra command line option in Team...
How to use a WSDL
... the project and pick Connected Service from the Add context menu.
I would select Microsoft WCF Web Service Reference Provider from the list.
I would press browse and select the wsdl file straight away, Set the namespace and I am good to go.
Refer to the error fix url above if you encounter any err...
关于php的socket初探 - PHP - 清泛IT论坛，有思想、有深度
...连接的模型都应该被称为多路复用，目前比较常用的有 select/poll/epoll/kqueue 这些 IO 模型（目前也有像 Apache 这种每个连接用单独的进程/线程来处理的 IO 模型，但是效率相对比较差，也很容易出问题，所以暂时不做介绍了）。在...
Connect Java to a MySQL database
...Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT ID FROM USERS");
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rs.close();
stmt.close();
conn.close();
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Why am I getting “Unable to find manifest signing certificate in the certificate store” in my Excel
...the Project's properties page, click on Signing tab and either
Click on Select from store
Click on Select from file
Click on Create test certificate
Once either of these is done, you should be able to build it again.
sh...