Most Python web frameworks make you choose between testability and convenience. You either have clean code with complex test setup, or you use global state and hope your tests don’t interfere with each other. FastAPI’s Depends() solves this elegantly. Here is an example how you would use it in your API: What’s happening here: Type-safe –… Continue reading How Dependency Injection makes your FastAPI Code Better Testable
Bob Belderbos
Bob studied business economics, but got fired up about programming early in his career. He taught himself web design / coding and started living his biggest passion: automate the boring stuff, making other people's lives easier. Since then he has coded projects accruing millions in cost savings and built a coding platform that has taught Python to thousands of people worldwide. He deeply cares about helping other people succeed. His biggest win will be your next win!
NLP Made Easy: How We Prioritize Exercise Improvements with a Few Lines of Code
By Bob Belderbos on 20 February 2025
We highly appreciate user feedback for continuous improvement. With hundreds of Bite exercises and thousands of reviews, it’s easy to get overwhelmed by the data. 😱 How do you uncover insights from this sea of feedback? Use code! 😎 Enter TextBlob, a Python library that abstracts away the complexities of Natural Language Processing (NLP). This… Continue reading NLP Made Easy: How We Prioritize Exercise Improvements with a Few Lines of Code
Create Project-Less Python Utilities with uv and Inline Script Metadata
By Bob Belderbos on 17 January 2025
The other day I wanted to demo the Google Books API (we use for Pybites Books) to somebody so I started to write some code on the fly to call its endpoints using httpx. Then I thought it would be nice to turn it into a small script to search for books and view details… Continue reading Create Project-Less Python Utilities with uv and Inline Script Metadata
Creating a Fitness Tracker App with Python Reflex
By Bob Belderbos on 16 January 2025
In this post, I will build a simple fitness tracker app using Python Reflex. Reflex is a Python library that allows you to create reactive applications using a functional and declarative approach. We will use Reflex to create a simple fitness tracker app that allows you to log the amount of workouts completed per week.… Continue reading Creating a Fitness Tracker App with Python Reflex
What is the Repository Pattern and How to Use it in Python?
By Bob Belderbos on 20 June 2024
The repository pattern is a design pattern that helps you separate business logic from data access code. It does so by providing a unified interface for interacting with different data sources, bringing the following advantages to your system: A practical example Let’s use Python and sqlmodel (PyPI) to demonstrate this pattern (code here): Note: In this implementation,… Continue reading What is the Repository Pattern and How to Use it in Python?
Deploying a FastAPI App as an Azure Function: A Step-by-Step Guide
By Bob Belderbos on 17 June 2024
In this article I will show you how to deploy a FastAPI app as a function in Azure. Prerequisites are that you have an Azure account and have the Azure CLI installed (see here). Setup Azure First you need to login to your Azure account: It should show your subscriptions and you select the one… Continue reading Deploying a FastAPI App as an Azure Function: A Step-by-Step Guide
Leveraging typing.Protocol: Faster Error Detection And Beyond Inheritance
By Bob Belderbos on 9 February 2024
Introduction Two weeks ago I wrote an article about ABCs and interface enforcement. Shortly after I learned that you can do this as well with protocols. Python 3.8 introduced quite a groundbreaking feature that further advanced the language’s capabilities in type checking: the typing.Protocol which allows Python developers to define and enforce interface contracts in… Continue reading Leveraging typing.Protocol: Faster Error Detection And Beyond Inheritance
How to Send Email Notifications Using Sendgrid and GitHub Actions
By Bob Belderbos on 7 February 2024
Introduction As a Python developer I want to stay up2date with trends and useful tips & tricks. Of course there are great newsletters like Pycoders, but those are already hitting my inbox. Let’s look at Planet Python in this article, an aggregation site/ service that indexes a lot of good Python blog feeds. Keeping an… Continue reading How to Send Email Notifications Using Sendgrid and GitHub Actions
Elevate Your Python: Harnessing the Power of Abstract Base Classes (ABCs)
By Bob Belderbos on 26 January 2024
Introduction One cool object-oriented programming (OOP) technique / pattern is enforcing consistent interfaces. In Python you can use Abstract Base Classes (ABCs) for that. 🐍 Using ABCs ensures that all subclasses implement the required methods. This can make it easier to maintain and extend the existing code base. Update Feb 2024: you can also leverage… Continue reading Elevate Your Python: Harnessing the Power of Abstract Base Classes (ABCs)
Exploring the Role of Static Methods in Python: A Functional Perspective
By Bob Belderbos on 24 January 2024
Introduction Python’s versatility in supporting different programming paradigms, including procedural, object-oriented, and functional programming, opens up a rich landscape for software design and development. Among these paradigms, the use of static methods in Python, particularly in an object-oriented context, has been a topic of debate. This article delves into the role and implications of static… Continue reading Exploring the Role of Static Methods in Python: A Functional Perspective