Python Snippets

Python code snippets and best practices.

Snippets

• Click CLI Framework
  Building CLI applications with Click in Python
• FastAPI with OpenAPI
  FastAPI with automatic OpenAPI documentation using Pydantic models and …
• Flask Essentials
  Flask web framework essentials for building web applications and APIs. …
• Function Timing Decorator
  Decorator to measure function execution time
• LangChain Chatbot with Tools
  Simple stdin chatbot using LangChain with tool calling (OpenRouter). …
• Pandas DataFrames Essential Patterns
  Essential patterns for working with Pandas DataFrames: creation, manipulation, …
• Pydantic Data Validation
  Pydantic - Data validation using Python type hints. Installation 1pip install …
• Python Dataclasses
  Python dataclasses for clean, boilerplate-free data structures. Basic Usage …
• Python Metaclasses
  Python metaclasses with visual explanations using Mermaid diagrams. What are …
• Python Virtual Environments
  Managing Python virtual environments and dependencies
• Random Forests in Depth
  Comprehensive guide to Random Forests: theory, implementation, tuning, and …
• Scikit-learn Common Patterns
  Common patterns and workflows for scikit-learn: preprocessing, model training, …