Development

• Contributing Guide
  • Types of Contributions
  • Step-by-step Guide For Code Contributions
  • Environment Setup
  • Running Tests
  • Building Documentation
  • Coding Conventions
  • Doctest Conventions
  • Release Guide
• Design Principles
  • Be Pythonic
  • Unify small data (pandas) API and big data (Spark) API, but pandas first
  • Return Koalas data structure for big data, and pandas data structure for small data
  • Provide discoverable APIs for common data science tasks
  • Provide well documented APIs, with examples
  • Guardrails to prevent users from shooting themselves in the foot
  • Be a lean API layer and move fast
  • High test coverage

databricks.koalas.extensions.register_index_accessor Contributing Guide