Python An Introduction to Functional Programming with Python Many Python developers are unaware of the extent to which you can use functional programming in Python, which is a shame: with few exceptions, functional programming allows you to write more concise and
Python Writing Your Own Filtering DSL in Python A few months ago, we've seen how to write a filtering syntax tree in Python. The idea behind this was to create a data structure — in the form of a dictionary — that would
Python + Memcached: Efficient Caching in Distributed Applications When writing Python applications, caching is important. Using a cache to avoid recomputing data or accessing a slow database can provide you with a great performance boost.Python offers built-in possibilities for caching,
How to Log Properly in Python Logging is one of the most underrated features. Often ignored by software engineers, it can save your time when your application's running in production.Most teams don't think about it until it's too
Python Serious Python released! Today I'm glad to announce that my new book, Serious Python, has been released.However, you wonder… what is Serious Python?Well, Serious Python is the the new name of The Hacker's Guide
Database Why You Should Care That Your SQL DDL is Transactional I don't write a lot about database management. How come? I'm a software engineer, and like many of my peers, I leverage databases to store data. I should talk more about this! What
Gnocchi Podcast.__init__: Gnocchi, a Time Series Database for your Metrics A few weeks ago, Tobias Macey contacted me as he wanted to talk about Gnocchi, the time series database I've been working on for the last few years.It was a great opportunity
Python A multi-value syntax tree filtering in Python A while ago, we've seen how to write a simple filtering syntax tree with Python. The idea was to provide a small abstract syntax tree with an easy to write data structure that
Python The Best flake8 Extensions for your Python Project In the last blog post about coding style, we dissected what the state of the art was regarding coding style check in Python.As we've seen, Flake8 is a wrapper around several tools
Mergify More GitHub workflow automation The more you use computers, the more you see the potentials for automating everything. Who doesn't love that? By building Mergify those last months, we've decided it was time bring more automation to
Python Code Style Checks in Python After starting your first Python project, you might realize that it is actually not that obvious to be consistent with the way you write Python code. If you collaborate with other developers, your
Python High-Performance in Python with Zero-Copy and the Buffer Protocol Whatever your programs are doing, they often have to deal with vast amounts of data. This data is usually represented and manipulated in the form of strings. However, handling such a large quantity
Gnocchi 4.3.0 released This new release minor release of Gnocchi has been a bit longer than usual, but here it is!So what's new in this version of Gnocchi? Well, according to the release notes, not
Python Starting your first Python project There's a gap between learning the syntax of the Python programming language and being able to build a project from scratch. When you finish reading your first tutorial or book about Python, you're
Mergify How I stopped merging broken code It's been a while since I moved all my projects to GitHub. It's convenient to host Git projects, and the collaboration workflow is smooth. I love pull requests to merge code. I review
Mergify Stop merging your pull requests manually If there's something that I hate, it's doing things manually when I know I could automate them. Am I alone in this situation? I doubt so. Nevertheless, every day, they are thousands of
Python A simple filtering syntax tree in Python Working on various pieces of software those last years, I noticed that there's always a feature that requires implementing some DSL. The problem with DSL is that it is never the road that
Python Correct HTTP scheme in WSGI with Cloudflare I've recently been using Cloudflare as an HTTP frontend for some applications, and getting things working correctly with WSGI was unobvious. In Python, WSGI is the standard protocol to write a Web application.
OpenStack Lessons from OpenStack Telemetry: Deflation This post is the second and final episode of Lessons from OpenStack Telemetry. If you have missed the first post, you can read it here. Splitting At some point, the rules relaxed on
OpenStack Lessons from OpenStack Telemetry: Incubation It was mostly around that time in 2012 that I and a couple of fellow open-source enthusiasts started working on Ceilometer, the first piece of software from the OpenStack Telemetry project. Six years
Python Is Python a Good Choice for Entreprise Projects? A few weeks ago, one of my followers, Morteza, reached out and asked me the following: I develop projects mostly with Python, but I am scared that Python is not a good choice
Gnocchi Gnocchi engine optimization Software speed is relative. After all, it is the result of a set of trade-offs made between the ease of programming and the speed of hardware. The comfort of the developer and its
Ghost On blog migration I've started my first Web page in 1998 and one could say that it evolved quite a bit in the meantime. From a Frontpage designed Web site with frames, it evolved to plain
Python Scaling a polling Python application with tooz This article is the final one of the series I wrote about scaling a large number of connections in a Python application. If you don't remember what the problem we're trying to solve
Python Scaling a polling Python application with asyncio This article is a follow-up of my previous blog post about scaling a large number of connections. If you don't remember, I was trying to solve one of my followers' problem: It so
