To print arrays in Python, you can use the print() function directly for simple output or implement loops for formatted display. This guide covers both approaches for 1D and 2D arrays with practical examples.Array printing in Python hits different when you’re debugging at 3 AM.What starts as a simple print() statement can turn into an entire formatting philosophy.I’ve been down this rabbit hole. Multiple times.What Are Python Arrays?First things first, there are no arrays in Python.You get lists and NumPy arrays.Lists are Python’s default – flexible, forgiving, and deceptively simple.NumPy arrays want type consistency. They reward you with performance.This distinction…
Author: drweb
I was working on a FastAPI project when a simple division function brought our entire production service down. One unhandled ZeroDivisionError, and boom – the service crashed.That’s when I truly understood why Python exception handling is a critical skill every aspiring dev needs to master.Exception handling in Python uses try-except blocks to catch and manage errors that occur during program execution. The try block contains code that might raise exceptions, while except blocks catch and handle specific exceptions, preventing program crashes and enabling graceful error recovery. The finally block ensures cleanup code always runs, and the else block executes when…
Last week a junior developer asked me, “Why doesn’t Python have a switch or case statement like other languages?” This question comes up surprisingly often, and while Python doesn’t have a traditional switch-case construct, it offers several elegant alternatives that I’ve found even more powerful in practice.Python’s approach to conditional logic emphasizes simplicity and flexibility over specialized syntax. Instead of a dedicated switch-case statement, Python provides multiple patterns that achieve the same results—often with better readability and maintainability. The most common alternatives include if-elif chains, dictionary mappings, and the match-case statement introduced in Python 3.10.Why Python Avoided Traditional Switch StatementsThe…
I was working on a Python project the other day when I needed to grab some product prices from an online store. Going through pages manually would have taken hours, but Python made it simple – just a few lines of code with BeautifulSoup and requests, and I had all the data I needed in minutes.Web scraping automates the process of extracting data from websites. When you visit a webpage, your browser receives HTML content from a server. Web scraping tools follow the same process – they send HTTP requests, receive HTML responses, and parse that data for specific information.Web…
What if you could catch bugs in your code before they ever reach production, saving hours of debugging and potential customer frustration? Unit testing — a fundamental practice in modern software development that ensures code quality and reliability, making this possible. In today’s fast-paced tech landscape, where applications are expected to deliver seamless experiences, unit testing has become an indispensable tool for developers. Unit testing involves breaking down code into small, testable components and verifying whether each part is functioning as intended. It’s not just about finding bugs — it’s about building confidence in your code, enabling faster iterations and fostering…
Modern DevOps pipelines handle an intricate web of continuous integration/continuous delivery (CI/CD), dynamic cloud infrastructure and rigorous security demands. As complexities in the pipeline increase, traditional automations struggle to maintain necessary velocity. AI-driven DevOps represents a paradigm shift that embeds machine learning (ML) and intelligent automation into pipelines to create systems that detect problems and heal themselves while gradually optimizing performance. Amazon SageMaker and Amazon Bedrock represent two AWS tools that turn this vision into reality. This article demonstrates how these services revolutionize CI/CD operations, infrastructure management and security through practical examples that include self-healing pipeline anomaly detection and generative AI…
Another KDA case: Digitown’s utility bills suddenly doubled for no good reason. With the election coming up, I got pulled in to figure out what went wrong. I’ve got the billing data and the SQL they used—now it’s time to dig in.The problemImagine this: It’s a fresh new year, and citizens of Digitown are in an uproar. Their water and electricity bills have inexplicably doubled, despite no changes in their consumption.Sounds less like a billing error and more like Digitown accidentally subscribed to a corporate pricing model.They also mention:The city’s billing system utilizes SQL (an interesting choice, to say the…
In this article, we’ll explain the difference between the shutdown, poweroff, halt and reboot commands in Linux. We’ll clarify what each command actually does when executed, along with the available options. If you’re diving into Linux server administration, these are some of the important Linux commands you need to fully understand for effective and reliable server administration. Tip: Most shutdown-related commands require sudo if you’re not logged in as root. Shutdown Command The shutdown command schedules a time for the system to be powered down, which can be used to halt, power off, or reboot the machine. You may specify…
Amazon Web Services (AWS) this week added support for the emerging Model Context Protocol (MCP) to Amazon Q Developer, a suite of artificial intelligence (AI) agents for application developers that can now be more easily integrated with other AI tools and data sources.Adnan Ijaz, director of product management for developer agents and experiences at AWS, said support for MCP in the command line interface (CLI) that AWS makes available to developers to access any MCP server. That capability will also soon be extended to the integrated development environment (IDE) that AWS provides for Amazon Q Developer.Originally developed by Anthropic, MCP…
Ubuntu is known for its user-friendly interface and robust performance, but over time, even the best operating systems can slow down due to accumulated temporary files, logs, cached data, and remnants of uninstalled applications, which take up valuable storage space and potentially affect performance. In this article, we’ll explore 15 simple yet effective tips to help you get Ubuntu running at top speed. From small tweaks to system-wide optimizations, we’ve got you covered. 1. Choose the Right Ubuntu Flavor Ubuntu comes in different flavors tailored to various needs. If you’re using Ubuntu Desktop, consider switching to a lighter version like…