Using PyPI

Using PyPI packages (aka “pip install”) involves the following main steps:

1. Generating requirements file

2. Installing third-party packages in bzlmod or WORKSPACE.

3. Using third-party packages as dependencies

With the advanced topics covered separately:

• Dealing with circular dependencies.

• Handling multi-platform dependencies.

• Lock
  • requirements.txt
    • pip compile
      • pip compile Dependency groups
    • uv pip compile (bzlmod only)
• Download (bzlmod)
  • Interpreter selection
  • Requirements for a specific OS/Architecture
  • Multi-platform support
    • Using download_only attribute
    • Customizing Requires-Dist resolution
    • Bazel downloader and multi-platform wheel hub repository.
  • Internal dependencies and private repositories
    • How the config is parsed:
    • References:
  • Credential Helper
• Download (WORKSPACE)
  • Interpreter selection
  • Requirements for a specific OS/Architecture
  • Vendoring the requirements.bzl file
• Use in BUILD.bazel files
  • Entry points
  • ‘Extras’ dependencies
  • Consuming Wheel Dists Directly
  • Creating a filegroup of files within a whl
  • A note about using the requirement helper

Advanced topics

• Circular dependencies
• Patching wheels
• How-to: Multi-Platform PyPI Dependencies