Module 6: LLM APIs (Python)

Module 6: LLM APIs (Python)#

CodeVision Python Training

Contents#

  • Group 1: LLM API Fundamentals (Sections 6.1-6.5)

  • Group 2: Building LLM Clients (Sections 6.6-6.10)

  • Group 3: Structured Output & Validation (Sections 6.11-6.15)

  • Group 4: Reliability & Production Patterns (Sections 6.16-6.20)

Welcome to Module 6#

This module teaches you how to work with LLM APIs in Python, building robust clients that handle real-world challenges like network failures, malformed responses, and rate limits.

It is practical and code-focused, showing you how to build production-quality LLM integrations. By the end of this module, you will be able to call LLMs reliably and extract structured data from their responses.

This module builds directly on:

  • Module 1: Python fundamentals (classes, functions, JSON)

  • Module 3: LLM Fundamentals (prompting, inference)

  • Module 5: Embeddings & Vector Databases (retrieval patterns)

What You Will Learn#

Topic

Why It Matters

LLM API architecture

Understand how LLM services work

Building HTTP clients

Connect to Ollama, OpenAI, and other APIs

Structured output

Get JSON instead of free-form text

Response parsing

Handle markdown-wrapped JSON and edge cases

Retry with backoff

Handle transient failures gracefully

Schema validation

Ensure responses match expected format

Rate limiting

Respect API quotas and avoid bans

Error handling

Build resilient production systems

Prerequisites#

Before starting this module, ensure you have:

  • Completed Module 1 (Python Foundations)

  • Completed Module 3 (LLM Fundamentals)

  • Completed Module 5 (Embeddings & Vector Databases)

Module 6 Learning Path#

  1. Content - Work through the interactive notebook

  2. Quiz - Test your understanding (auto-graded)

  3. Assessment - Coding tasks (LLM client, JSON parsing, retry logic, validation) + written explanation (auto-graded)

  4. Resources - Additional learning materials

End of Module 6 Introduction#

Click Content in the navigation to begin the interactive lesson.

Contents