Break free from the POSIX standard for more fluent CLIs, by exposing simple Python functions or objects with a minimalist argument typing style, or building your own command during runtime. For me, it’s in between google/python-fire, microsoft/knack, and Django.

Demo

Before becoming a generic CLI framework, back 10 rewrites prior to the latest release, cli2 was supposed to just bring Python callables on the CLI without even a single line of code:

How weak is a Continuous Deployment when you can’t just deploy the master branch to production at any time? Merging unfinished patches to publish them on a staging deployment blocks production deployment of the master branch…

eXtreme DevOps is the practice of an extremely aggressive Continuous Delivery strategy where each patch push deploys an ephemeral deployment such as branchname.ci.example.com. Of course, this would be quite hard to achieve with configuration files, even with NGINX and Ansible.

But, with Traefik it becomes so easy that we couldn’t resist and make it the standard practice for all our developments, from private companies of all sizes, and to government organizations. In this session, James demos and discusses his expertise using Traefik to practice eXtreme DevOps for his customers.

Django-cities-light package was moved from YourLabs to JazzBand.

Also, 3.5.1 was released which adds Django 3.0 support contributed by @nguyencg.

And 3.6.0 was released which adds Subregions on top of that, thanks to @adamb70 and @Guts.

This articles describes how to use the scripts we use to maintain public and private mirrors for Arch and Alpine Linux packages (more distros to come): arch.yourlabs.org and alpine.yourlabs.org.

The whole point of having this is that we also have arch.yourlabs.org and alpine.yourlabs.org on our local networks, as such upgrades are extremely fast at the hackerspace.

BigSudo is a command line generator wrapping around Ansible: the excellent tool for automating operations which has proven itself in an extremely heterogenic ecosystem over the course of the last years, and currently maintained by Red Hat.

eXtreme DevOps is when code traditionnaly known as network and infrastructure operations automation meet continuous integration, merges with continuous delivery, made it almost trivial to deploy per-branch ephemeral deployments on each git push, say on test-$GIT_BRANCHNAME.ci.example.com, so that the product team can review a feature during development without forcing the developer to merge unfinished code into master, in order to keep the master branch clean and deployable at any moment.

Then next Tezos Protocol update, Carthage net, will increase the gas restrictions allowing the development of hungrier smart contracts. In this post, we document how to update these hard limits to arbitrary values letting developers implement contracts in view of protocol updates. For instance, the gas restrictions will increase by multiple folds before the end of the year.

We develop on the Tezos sandbox, the simplest is to pull Yourlabs' docker image:

On this Friday night, I decided to give my mini Python to pseudo-Michelson compiler ¹ a little polish. I remembered leaving it working flawlessly, so that it’d be easy to get back grinding at it anytime I so desired to. Using the Python AST module as a compiler frontend, I was sure it’d be pretty stable, unlike Marshall code, purposely left undocumented ².

So I gave my code a go, and somehow, my integration test wasn’t working anymore! What could possibly have gone wrong. I noticed I was using the Python 3.8 interpreter and that I had only tested my code on Python 3.7. Could this update contain breaking changes with respect to my code? I figured if this had been the case, then surely it’d be in the AST module. I compared the bytecode output I was getting with the one my test expected and surprisingly, it was not the same! It wasn’t pushing my constants onto the stack when assigning them to variables. A little more digging, with the help of Python’s new breakpoint(), until I noticed that my condition on ast.Num, to push a number on the stack, had been replaced by ast.Constant… Hence the weird bug I was noticing. A little Googling to find that indeed:

This articles presents the most convenient way to deal with global node packages as non-root user.

By default, npm install -g tries to write a root-writable directory and greets you with:

$ npm install -g cypress
WARN checkPermissions Missing write access to /usr/lib/node_modules
npm ERR! code EACCES
npm ERR! syscall access
npm ERR! path /usr/lib/node_modules
npm ERR! errno -13
npm ERR! Error: EACCES: permission denied, access '/usr/lib/node_modules'
npm ERR!  [Error: EACCES: permission denied, access '/usr/lib/node_modules'] {
npm ERR!   stack: "Error: EACCES: permission denied, access '/usr/lib/node_modules'",
npm ERR!   errno: -13,
npm ERR!   code: 'EACCES',
npm ERR!   syscall: 'access',
npm ERR!   path: '/usr/lib/node_modules'
npm ERR! }
npm ERR!
npm ERR! The operation was rejected by your operating system.
npm ERR! It is likely you do not have the permissions to access this file as the current user
npm ERR!
npm ERR! If you believe this might be a permissions issue, please double-check the
npm ERR! permissions of the file and its containing directories, or try running
npm ERR! the command again as root/Administrator.

Django-autocomplete-light 3.5.0 was released, including backward compatibility breaks.

Django-autocomplete-light 3.4.0 introduced a regression in locale loading, it has been reported by Phil Gyford, thank you !