Programming: Perl, Python, CRAN
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Garbage collection in Perl 6
In the first article in this series on migrating Perl 5 code to Perl 6, we looked into some of the issues you might encounter when porting your code. In this second article, we’ll get into how garbage collection differs in Perl 6.
There is no timely destruction of objects in Perl 6. This revelation usually comes as quite a shock to people used to the semantics of object destruction in Perl 5. But worry not, there are other ways in Perl 6 to get the same behavior, albeit requiring a little more thought by the developer. Let’s first examine a little background on the situation in Perl 5.
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An introduction to the Django Python web app framework
In the first three articles of this four-part series comparing different Python web frameworks, we covered the Pyramid, Flask, and Tornado web frameworks. We've built the same app three times and have finally made our way to Django. Django is, by and large, the major web framework for Python developers these days and it's not too hard to see why. It excels in hiding a lot of the configuration logic and letting you focus on being able to build big, quickly.
That said, when it comes to small projects, like our To-Do List app, Django can be a bit like bringing a firehose to a water gun fight. Let's see how it all comes together.
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Dirk Eddelbuettel: RcppArmadillo 0.9.100.5.0
A new RcppArmadillo release 0.9.100.5.0, based on the new Armadillo release 9.100.5 from earlier today, is now on CRAN and in Debian.
It once again follows our (and Conrad's) bi-monthly release schedule. Conrad started with a new 9.100.* series a few days ago. I ran reverse-depends checks and found an issue which he promptly addressed; CRAN found another which he also very promptly addressed. It remains a true pleasure to work with such experienced professionals as Conrad (with whom I finally had a beer around the recent useR! in his home town) and of course the CRAN team whose superb package repository truly is the bedrock of the R community.
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