Define contracts
Distinguish valid structure, business rules and evidence support.
Practical AI · EDITION 1.0.0
Build strict parsing, field validation, evidence correspondence and refusal handling for synthetic extraction responses.
By Sanjaay Gowda T S · For python developers integrating generated data into applications.
Runtime and hardware details
Python 3.10 or later and a terminal. The supplied project runs locally and uses the Python standard library.
No model, API key, cloud account or network calls are used by the companion.
Basic Python dictionaries and exceptions; Familiarity with JSON objects and strings.
Full setup and scope ↓$2.99USD · one-time purchase
Prepared with AI assistance. Independent human technical, editorial and assistive-technology reader review remains pending. Automated checks and agent review are not certification.
PDF + EPUB + companion project. Any applicable tax is shown at checkout. Single-reader ebook terms; companion code is MIT licensed.

TRY THE FREE SAMPLE
Read 7 sample pages to explore the introduction, first chapter and teaching approach before you choose the complete edition.
WHAT YOU WILL LEARN
Distinguish valid structure, business rules and evidence support.
Handle duplicate keys, wrong types and unsupported fields explicitly.
Design bounded repair and contract migrations with meaningful tests.
INSIDE THE BOOK
Python 3.10 or later and a terminal. The supplied project runs locally and uses the Python standard library.
No model, API key, cloud account or network calls are used by the companion.
Learning prerequisites: Basic Python dictionaries and exceptions; Familiarity with JSON objects and strings.
Prepared with AI assistance. Independent human technical, editorial and assistive-technology reader review is pending.
The included examples are synthetic teaching material. Model access, software subscriptions, hosting, ongoing updates and consulting are not included.
CLEAR EXPECTATIONS
Build strict parsing, field validation, evidence correspondence and refusal handling for synthetic extraction responses. The local companion uses fictional teaching fixtures. Project limits: Checks exact fields and shallow source-text correspondence, rather than semantic entailment. It includes no model API, action execution, automatic repair or full JSON Schema engine.
The 13 companion tests passed on the packaged project. The supplied fictional fixture produced its recorded expected JSON output. EPUBCheck reported no errors or warnings; DAISY Ace and PDF/UA automated checks passed. These local teaching checks are not production accuracy claims or certification. Independent human technical, editorial and assistive-technology reader review remains pending.
Complete the secure Lemon Squeezy checkout to access the PDF, EPUB and companion ZIP. Keep your receipt and download access private. This is a one-time purchase of edition 1.0.0; ongoing updates and consulting are not included.
The full ebook is licensed to one reader. The labelled free sample may be shared unchanged. The companion project is MIT licensed and may be adapted or shared with its licence notice. See the exact ebook terms.
One book. A complete learning project. Evidence you can inspect.
AI-assisted · Independent human review pending