Pydantic: your bouncer for messy data (with real examples)
Pydantic: your bouncer for messy data (with real examples) If you’ve ever had a pipeline blow up because "quantity" showed up as "two" , you already get why validation matters. Meta description suggestion: Learn how to use Pydantic (v2) to validate API inputs, clean data-pipeline rows, load typed settings from environment variables, and produce clear error messages—with practical Python examples. Quick jumps Why validation saves your sanity The problem Pydantic solves Install Examples you can copy/paste Benefits Use cases Wrap-up Why validation saves your sanity Pydantic is a guardrail for input data. You describe the shape using Python type hints, and Pydantic checks it at runtime. When something’s off, you get a clean ValidationError that tells you exactly what faile...