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Turn Python Functions into an AI Assistant

A Beginner's Guide to Pydantic AI, Structured Outputs, Tool Calling, and Practical Tests

What if the Python functions you already know could become the building blocks of an intelligent AI assistant?

Building an AI assistant does not have to begin with complicated frameworks, advanced machine learning, or overwhelming code. With the right approach, you can turn ordinary Python functions into useful tools that help an AI agent understand requests, perform actions, and return structured results.

Turn Python Functions into an AI Assistant provides a practical, step-by-step introduction to building AI-powered applications with Pydantic AI. Designed for readers with basic Python knowledge, this beginner-friendly guide explains essential concepts clearly and shows how to connect them through hands-on programming exercises.

Rather than presenting disconnected examples, the book guides you through building a Task-Planning AI Assistant, gradually combining Python functions, language models, tool calling, data validation, and automated testing into one working application.

What You'll Learn

• Understand AI agents: Discover how language models, prompts, and Python applications work together.

• Set up Pydantic AI: Prepare your development environment, install dependencies, and configure an agent.

• Turn functions into tools: Learn how to register Python functions that an AI agent can request and execute.

• Work with tool arguments: Pass information between agents and functions while handling returned results.

• Build assistants with multiple tools: Create an agent that can perform different task-management operations.

• Create structured outputs: Use Pydantic models to define, organize, and validate AI-generated data.

• Handle errors effectively: Recognize invalid inputs, validation failures, and common agent problems.

• Write practical automated tests: Use pytest and Pydantic AI testing utilities to verify agent behavior.

• Complete a hands-on project: Bring the components together into a functional command-line AI assistant.

Learn by Building, Not Just Reading

Each chapter follows a progressive learning approach, combining straightforward explanations, practical Python examples, guided exercises, and expected results.

You'll understand what each important component does, why it matters, and how it contributes to the finished application.

Who This Book Is For

This guide is suitable for:

• Python beginners ready to explore AI application development.

• Self-taught programmers interested in building AI agents.

• Developers learning tool calling and structured data validation.

• Students and career changers developing practical AI programming skills.

• Hands-on learners who prefer guided projects and working examples.

Basic familiarity with Python is helpful. Previous experience with AI agents, machine learning, or Pydantic AI is not required.

Start with familiar Python functions and discover how to connect them into a working, testable AI assistant.

Build a practical foundation for developing your own AI-powered Python applications, one understandable step at a time.

Parametry knihy

• Plný název: Turn Python Functions into an AI Assistant
• Podnázev: A Beginner's Guide to Pydantic AI, Structured Outputs, Tool Calling, and Practical Tests
• Autor: Hainrich Zawadzki
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 220
• EAN: 9798141668425
• ID: 54515631
• Nakladatelství: Independently published
• Hmotnost: 391 g
• Rozměry: 254 × 178 × 12 mm
• Datum vydání: 10. November 2026

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