A high-level, interpreted programming language known for its simplicity and readability, widely used for web development, data analysis, and automation.
Testing is one of those steps in software development that separates a hobby project from a professional one. Whether you’re building something small or maintaining a complex codebase, testing ensures your code does what it’s supposed to do. If you’re new to testing in Python, pytest is one of the easiest tools to get started
Have you ever run into the frustrating problem of your script not finding the file it’s supposed to read? I know I have, especially when moving a project between environments or sharing it with a teammate. One key lesson I’ve learned is to always rely on relative paths that adapt to the script’s location. This
When I first stumbled upon the need to show differences between strings in a Git-like format, I wasn’t sure where to start. The idea seemed daunting—how could I highlight additions, removals, and changes in a clear, color-coded way? Luckily, Python’s difflib module came to the rescue. What started as a challenge turned into a rewarding
When I first started working with Python, one of the most common tasks I encountered was searching for a specific string in a list (or array) of strings. Whether it was looking up a username, checking for keywords, or validating input, this task came up over and over again. Thankfully, Python offers several easy and
Working with data in Python often means dealing with various file formats, and JSONL (JSON Lines) is one of the most practical for handling structured data in bulk. If you’ve come across this format and wondered how to read it efficiently, you’re in the right place. JSONL files are a series of JSON objects, each
When I first started working with Docker, one of the things I needed to figure out was how to run a Python script efficiently within a container. Docker is a fantastic tool for containerizing applications, and running Python scripts in this environment can simplify dependencies and make your projects more portable. In this post, I’ll
As a developer, I often find myself needing to generate realistic-looking data for testing purposes. One common requirement is creating phone numbers that mimic real-world formats. For example, in the United States, phone numbers often follow the 999-999-9999 pattern. This is where the Faker library shines—it allows you to generate fake yet convincing data with
When developing and testing applications that rely on Azure Event Hubs, it’s incredibly convenient to have a local setup. While Azure Event Hubs itself cannot run locally, we can emulate it using a combination of tools like Azurite for Azure Storage and Kafka for event streaming. This setup allows us to test our event-driven applications
Connection strings are central to working with databases, APIs, and other systems where authentication, schema, and server details need to be specified. A connection string combines these details into one, convenient string—like a condensed map to the exact data you’re trying to reach. However, while a connection string packs a lot of essential information, sometimes
When working with Python applications, managing environment variables for things like passwords, API keys, and other configurations is essential. Environment variables keep sensitive information secure and flexible, allowing you to adjust configurations without modifying your code. But what if the necessary environment variable isn’t set, or you want an alternative, like a CLI prompt, to
When it comes to writing versatile and user-friendly Python scripts, knowing how to handle command-line arguments is invaluable. These small, powerful tools enable users to control how a script behaves without modifying code. Python’s argparse library is built precisely for this purpose, and it simplifies the process significantly. In this guide, I’ll walk you through
When I first started working with Trino (formerly PrestoSQL), I found it powerful but somewhat tricky to connect from Python while handling authentication, SSL, and dynamic query parameters. After spending some time figuring it out, I decided to share what I’ve learned to help anyone facing the same challenges. If you’re trying to connect to