One field rename. 50 broken pipelines. No warning. Here’s how I built a Python framework that detects breaking schema changes automatically — before they reach production.
Before Python executes your code, it transforms it into an Abstract Syntax Tree (AST). In this article, we’ll explore how AST works, how Python understands source code, and how we can use it to detect schema changes in a data contract framework.
Most Python developers create classes every day without realizing that classes themselves are objects. This article explains metaclasses through simple analogies and demonstrates how they can be used to build powerful frameworks and automation tools.
What exactly is a schema, and why do data engineers care so much about them? Learn how schemas act as contracts between systems and why even a small change can break entire data pipelines.
How to validate, introspect, and safely load user-defined Python code with a real plugin engine as the example.