How to Build a Python SDK From Scratch

In the article "<source 218ca415-d66>", a developer shares their experience of building a Python SDK for the Stripe API from scratch. The author explains that an SDK, or Software Development Kit, is a library that simplifies the interaction with an API by handling HTTP calls, authentication, response parsing, and error handling.

The article is divided into three parts. Part 1 covers the concept of an SDK, its purpose, and how it makes working with APIs more developer-friendly. It distinguishes between the traditional method of directly using HTTP requests with libraries like `requests` and the streamlined approach provided by an SDK.

Part 2 delves into the project setup for building the Python SDK. The developer outlines the necessary steps to create the project structure, including initializing a package directory, creating essential files for the SDK, and installing the `requests` library as the only external dependency.

Part 3 focuses on error handling, which is a critical aspect of any SDK. The author emphasizes the importance of defining custom exception classes for different types of errors that may occur during API interactions. By creating clear and specific exception classes, developers can handle errors more effectively, making the SDK more intuitive and easier to use.