If you are interested in Linux commands frequently used by Linux sysadmins and power users, I've published this five-part series with over 90 update: 100+ Linux commands with links to each of the five articles in this series — click on each subheading.Continue reading...

Author: Irina Nazarova, CEOTopics: Developer Community, Devtools startup advisoryHow do you measure product-market fit for a developer tool? A PMF scoring model from Evil Martians—a product development consultancy for developer tools startups—built on data from 37 devtools companies across AI, infra...

Author: Irina Nazarova, CEOTopics: Developer Community, Devtools startup advisoryHow do you measure product-market fit for a developer tool? A PMF scoring model from Evil Martians—a product development consultancy for developer tools startups—built on data from 37 devtools companies across AI, infra...

SQL databases support multi-column indices, where a single index can incorporate data from multiple columns. These are powerful, but the order of the columns matters, with differences observable in practice: there can be orders of magnitude between two similar & simple queries, depending on which us...

The Ruby language leans on duck typing rather than formal interfaces. “If it walks like a duck and quacks like a duck, it’s a duck.” bodies = [poem, essay, case_study, user_manual].map(&:body) These objects come from different classes but all respond to body, so you can treat them uniformly. That’s ...

Background Our next game, The Incident at Galley House, is an adaptation of a text-based game called Type Help. It takes place at Galley House, a dwelling in the English countryside, during a dinner party where things go sideways. Galley House is divided into many rooms, and the core gameplay involv...

In this tutorial, you're going to learn how to backup data from a PHP application, to Google Sheets, and notify users afterward via SMS powered by Twilio.

TL;DR: If you teach Python, then you should check out course-setup (https://pypi.org/project/course-setup/) at PyPI! I’ve been teaching Python and Pandas for many years. And while I started my teaching career […] The post Do you teach Python? Then check out course-setup appeared first on LernerPytho...

A practical guide to the awk command in Linux, covering real-world examples for sysadmins: parsing logs, extracting columns, summing data, filtering output, and building quick reports from the command line.Continue reading...

How two plugins work together to bring enterprise-grade data integrity to your CakePHP application The Problem: Who Changed What, and Should They Have? Every application that handles important data eventually faces the same questions: “Who deleted that customer record last week?” “Can we undo...

Building connections that lead to successful relationships – both inside or outside of business – require a focused effort to meet others where they are. Without a strong relationship, navigating obstacles and aligning on goals is exponentially more difficult. A key tool for achieving this is mindfu...

"Double your reading speed in as fast as one weekend. Only $399 _paid in 4 manageable intallments_" Lol, sounds like a cringe comercial. And, well, a bit of…

A Python Pandas column contains comma-separated values. How can you get the first of those? First, break each string into a list: Then use .str[0] to grab the first element […] The post Pandas str.split: Get the first item of a comma-separated column appeared first on LernerPython.

Okay, so already I did this dance back in 2017. Looking back, my observations were somewhat shortsighted, but felt decent enough at the time. A year later, I contemplated the future of Vim once Bram Moolenaar dies. In 2023, we sadly found out what happens, with Christian Brabandt taking the lead. Si...

I wrote a web app to choose a random programming language. It’s very simple; I hestitate to even call it an “app”! The interesting part was scraping all the languages on Rosetta Code, and even that wasn’t very interesting. But I hope you like it! I learned about a language called Arturo this way, an...

One night, I wrote a simple tool to pick a random programming language. After shuffling a few times, I landed on Arturo. I decided to try it for fun. What’s Arturo? Best I understand, Arturo is a stack-based programming language. It’s primarily maintained by Yanis Zafirópulos. They published a visio...

Let’s talk about something most developers feel at some point, but not many enjoy admitting out loud: impostor syndrome. You know the feeling: someone calls you a senior…

photo by ajay_suresh In a previous post, I wrote about building my support team early during my second pregnancy. I talked about doulas, night nurses, and the support network I wished I had the first time around. Planning my return to work is another part of that same preparation. Specifically, retu...

Want to check whether a Python Pandas string series only contains digits? Use str.isdigit: This returns a boolean series, with df’s index. You can then convert the digit-containing strings to […] The post Pandas str.isdigit: Checking whether strings contain only digits appeared first on LernerPython...

Every individual item sold on Mercari.com has an id that looks like m<number>. If you buy several items from the same seller, you get a discount because you buy it as a bundle. Every bundle has its own unique id that looks like b<number>. Both ids are strings, yet they have a certain format that dif...

The Rust Security Response Team was notified of a vulnerability in the third-party crate tar, used by Cargo to extract packages during a build. The vulnerability, tracked as CVE-2026-33056, allows a malicious crate to change the permissions on arbitrary directories on the filesystem when Cargo extra...

The questions business leaders ask of their data have fundamentally changed. Static...

Getting a machine learning model to perform well in a notebook is only half the battle...

You'd never let a coding assistant refactor your codebase without a test suite. Without...

We are excited to announce the release of the Databricks AI Security Framework (DASF) Agentic AI Extension whitepaper...

Databricks infrastructure engineers are heading to SRECon 2026 in Seattle on March 24th....

Build a GPT-5.4 computer use agent with OpenClaw and the OpenAI Responses API. Step-by-step setup, action loops, screenshots, and browser automation. Continue reading How to Use GPT-5.4 Computer Use API with OpenClaw: Complete Guide* on SitePoint.

Is GPT-5.4 Mini worth upgrading from GPT-4o Mini? We benchmark speed, pricing, coding performance, and context window to find the true budget champion for developers. Continue reading GPT-5.4 Mini vs GPT-4o Mini: The Complete 2026 Developer Comparison* on SitePoint.