Python Packaging Specifications

This is a list of currently active interoperability specifications maintained by the Python Packaging Council. The process for updating these standards, and for proposing new ones, is documented in the python/packaging-council repo.

• Package Distribution Metadata
  • Names and normalization
  • Core metadata specifications
  • Version specifiers
  • Dependency specifiers
  • pyproject.toml specification
  • Dependency Groups
  • Inline script metadata
  • Platform compatibility tags
  • Well-known Project URLs in Metadata
  • glob patterns
  • License Expression
• Package Installation Metadata
  • Recording installed projects
  • Entry points specification
  • Recording the Direct URL Origin of installed distributions
  • Direct URL Data Structure
  • Python Virtual Environments
  • Externally Managed Environments
• Package Distribution File Formats
  • Source distribution format
  • Wheel distribution format
• Package Index Interfaces
  • The .pypirc file
  • Simple repository API
  • File Yanking
  • Index hosted attestations
  • Project Status Markers
• Python Description Formats
  • build-details.json
• Reproducible Environments
  • pylock.toml Specification
• JSON Schemas