refactor: move hermetic Python runtime setup into macro (#2221)

This stems from conversation in #2216. Moving the logic into a
loading-phase macro makes it
easier to understand how a repo with a python-build-standalone extracted
archive has
its toolchain defined. This also makes it easier to compare with the
local runtime repo
setup to try and find commonality in the future.

Along the way:
* Remove some Bazel 5 compatibility code: coverage_tool is now always
passed to py_runtime.
(Bazel 5 support was dropped earlier this year and we stopped testing
with it; it's
  likely already broken with Bazel 5).
* Add `semver.to_dict`, which makes it easier to pass into format()
functions.
4 files changed
tree: 456289a238f971401e4a0d992a264d5b572623ea
  1. .bazelci/
  2. .bcr/
  3. .ci/
  4. .github/
  5. docs/
  6. examples/
  7. gazelle/
  8. python/
  9. sphinxdocs/
  10. tests/
  11. third_party/
  12. tools/
  13. .bazelignore
  14. .bazelrc
  15. .bazelversion
  16. .git-blame-ignore-revs
  17. .gitattributes
  18. .gitignore
  19. .pre-commit-config.yaml
  20. .readthedocs.yml
  21. addlicense.sh
  22. AUTHORS
  23. BUILD.bazel
  24. BZLMOD_SUPPORT.md
  25. CHANGELOG.md
  26. CONTRIBUTING.md
  27. CONTRIBUTORS
  28. DEVELOPING.md
  29. internal_deps.bzl
  30. internal_setup.bzl
  31. LICENSE
  32. MODULE.bazel
  33. README.md
  34. version.bzl
  35. WORKSPACE
  36. WORKSPACE.bzlmod
README.md

Python Rules for Bazel

Build status

Overview

This repository is the home of the core Python rules -- py_library, py_binary, py_test, py_proto_library, and related symbols that provide the basis for Python support in Bazel. It also contains package installation rules for integrating with PyPI and other indices.

Documentation for rules_python is at https://rules-python.readthedocs.io and in the Bazel Build Encyclopedia.

Examples live in the examples directory.

The core rules are stable. Their implementation is subject to Bazel's backward compatibility policy. This repository aims to follow semantic versioning.

The Bazel community maintains this repository. Neither Google nor the Bazel team provides support for the code. However, this repository is part of the test suite used to vet new Bazel releases. See How to contribute page for information on our development workflow.

Documentation

For detailed documentation, see https://rules-python.readthedocs.io

Bzlmod support

  • Status: Beta
  • Full Feature Parity: No

See Bzlmod support for more details.