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Event system in Python

... limited interface, but higher performance". pyeventdispatcher is based on PHP's Symfony framework's event-dispatcher. dispatcher was extracted from django.dispatch but is getting fairly old. Cristian Garcia's EventManger is a really short implementation. Others: pluggy contains a hook system whic...
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Why is it bad practice to call System.gc()?

...n Schlansker 33.1k1212 gold badges7575 silver badges9898 bronze badges 1 ...
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What is the difference between an Azure Web Site and an Azure Web Role

...mmand-line tools to set up a web site with popular languages such as .NET, PHP, Node.js, and Python. Supported frameworks are already deployed and do not require more installation steps. The Azure Web Sites gallery contains many third-party applications, such as Drupal and WordPress as well as devel...
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How do I convert a hexadecimal color to rgba with the Less compiler?

... This hasn't been updated for a while but with Less PHP I am getting the following error - @colorGold: color('#C6AF87'); .box { background-color: rgba(red(@colorGold),green(@colorGold),blue(@colorGold),0.3); } Error is - Could not compile CSS file (screen.less): co...
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Are Exceptions in C++ really slow

... PhilippPhilipp 57.4k99 gold badges9898 silver badges136136 bronze badges ...
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What is the difference between square brackets and parentheses in a regex?

...uestion uses keyword var in code, this probably is JavaScript). The use of php which runs on PCRE for preg matching will optimize away the lack of backtracking, however we're not in PHP either, so using classes [] instead of alternations | gives performance bonus as the match does not backtrack, and...
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Is this a “good enough” random algorithm; why isn't it used if it's faster?

...have distinctly un-uniform output. Inspired by this article about how bad php's rand() function is, I made some random matrix images using QuickRandom and System.Random. This run shows how sometimes the seed can have a bad effect (in this case favouring lower numbers) where as System.Random is pret...
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Sorting an IList in C#

...his question inspired me to write a blog post: http://blog.velir.com/index.php/2011/02/17/ilistt-sorting-a-better-way/ I think that, ideally, the .NET Framework would include a static sorting method that accepts an IList<T>, but the next best thing is to create your own extension method. It's...
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How do I create a parameterized SQL query? Why Should I?

...ple would do this through a server side programming language library, like PHP's PDO or Perl DBI. For instance, in PDO: $dbh=pdo_connect(); //you need a connection function, returns a pdo db connection $sql='insert into squip values(null,?,?)'; $statement=$dbh->prepare($sql); $data=array('my...
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MySQL order by before group by

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