Comparing Perl, Python, and Ruby's test assertions

I've started a new series on my testing blog about the differences between Perl, Python, and Ruby's testing ecosystems and architectures. First article looking at the most basic assertions is done:

Perl 5 Porters Mailing List Summary: July 13th-22nd

Hey everyone,

Following is the p5p (Perl 5 Porters) mailing list summary for the past week and a half. Enjoy!

Announce: Rakudo Star Perl 6 Compiler Distribution Release 2016.07

Re-posted from
The release was prepared by Steve 'stmuk' Mynott

On behalf of the Rakudo and Perl 6 development teams, I'm pleased to announce the July 2016 release of "Rakudo Star", a useful and usable production distribution of Perl 6. The tarball for the July 2016 release is available from

This is the third post-Christmas (production) release of Rakudo Star and implements Perl v6.c. It comes with support for the MoarVM backend (all module tests pass on supported platforms).

Please note that this release of Rakudo Star is not fully functional with the JVM backend from the Rakudo compiler. Please use the MoarVM backend only.

Dancer 2 0.201000 Released

Dancer 2 0.201000 is on its way to a CPAN mirror near you.

The Dancer Core Developers are sad to announce the retirement of David Golden (xdg) from the core team. Dancer2 was made much better by his many contributions, and we are extremely grateful for all he has done.

We’d also like to announce the addition of Peter Mottram (SysPete) to the core team. SysPete has been working quietly behind the scenes on a number of projects, but has been a valuable member of the core team for some time now, and we are happy to have him aboard.

The core developers would most importantly like to give thanks to our awesome community for the numerous contributions towards this release. You rock!

Adding profiling support to nqp-js

Currently the focus of the work on the js backend is on making nqp-js emit code that runs at a reasonable speed (so that compiling Rakudo and its setting doesn't take eons and I can iterate on it more easily). Being able to easily profile nqp-js code is very useful for that.

The js profilers I have tried didn't work out so well

  • devtools had trouble with native modules as it runs in
  • running directly inside chrome require webpacking
  • node-inspector didn't support console.profile/console.profileEnd and it's interface locked up while profiling
  • some other ones were bitrotted

berrybrew, the perlbrew for Windows; rewritten and enhanced

For the people who use Windows, I've released berrybrew v1.04.

This software was originally written by David Farrell. While I was writing Test::BrewBuild, I needed some additional features (particularly the --with option for exec, and better PATH management). I wrote a couple of PRs, but they were rejected (not by David, but by the new maintainer). Not long after that, the person who had taken over the project disappeared, so I decided to permanently fork it, and nearly completely rewrite the whole thing.

It does everything the original does, but now includes far more:

[Part 2] A Date With The Bug Queue or Let Me Help You Help Me Help You

Read this article on Perl6.Party

Be sure to read Part I of this series.

As I was tagging tickets in my bug ticket helper app, I was surprised by how often I was tagging tickets with this particular tag:

Needs core member decision

It may have been the most used tag of them all. And so, it made be think about...

PART II: The Experienced Contributor

I will be referring to "core developers," but this generally applies to any person who has great familarity with the project, how it should, does, and will work —The Experienced Contributor. When it comes to bug queues, can this type of people do more than just pick the bug they like the most and fix it?

LESSON 3: Many Tickets Can Be Fixed With A Single Comment

On my date with the bug queue, I found many tickets that looked relatively easy to fix, from a technological point of view, but I couldn't even begin working on them for a simple reason: I didn't know what the correct behaviour should be.

Sparrowdo automation. Part 3. Installing system packages.

HI! I continue blogging about sparrowdo - a simple perl6 configuration management tool.

This is what we've learned so far:

Installing packages

Consider out latest example with installing CPAN packages:

$ cat sparrowfile

use v6;

use Sparrowdo;

task_run  %(
  task => 'install CGI',
  plugin => 'cpan-package',
  parameters => %( list => 'CGI' ),

What we are trying to do here is to install CGI CPAN module using cpan-package plugin. Here is little trick is hidden. A cpan-package implies you have a cpanm client pre-installed at your system. Let's see what will happen if it is not:

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