Structured LLM Outputs in Python: Instructor vs Outlines vs Pydantic AI (2026)
Instructor, Outlines, and Pydantic AI each solve structured LLM outputs a different way. Here is how to choose in 2026, with working code and FastAPI patterns.
Articles by Tomás Oliveira
PyIceberg in Python: A Practical Guide to Apache Iceberg Tables (2026)
PyIceberg 0.9 makes Apache Iceberg tables fully usable from pure Python. Walk through catalog setup, reads, appends, upserts, schema evolution, and time travel, plus how PyIceberg compares with Spark, Delta Lake, and Hudi for 2026 lakehouse work.
Async ETL in Python: httpx + asyncio to Pandas DataFrames (2026)
Build async ETL pipelines in Python using httpx and asyncio.TaskGroup with Pydantic V2 validation. Working code, retry policy, rate-limit handling, and the pitfalls that bite in production.