revert: upgrade to protobuf 27.0 and remove py_proto_library (#1933) (#1948)

This reverts commit d0e25cfb41446e481da6e85f04ad0ac5bcf7ea80.

We have the following concerns with the associated change:

- `sphinxdocs` is excluded entirely. Because protobuf fails to compile?
  But why? Protos are needed as part of our docgen, but it is unclear
  how the docgen is still working. Maybe we can get some clarification
  here?
- The `py_proto_library` tests in the `bzlmod` example are excluded from
  CI. Because protos also fail to compile? But why? It's an example and
  should Just Work.
- Adding the `copts` needs to be done by all downstream users now. But
  fixing that in protobuf blocks removing legacy struct providers? I
  don't understand the connection.

Also @alexeagle noted extra

[regression](https://github.com/bazelbuild/rules_python/pull/1933#issuecomment-2155523751)
being caused by the associated PR.

Reverting in order to unblock a new release of `rules_python` and then
we can work together with @comius on reverting the revert.

Reverts https://github.com/bazelbuild/rules_python/pull/1933
18 files changed
tree: 594913b7187e973e8f5e1e729c4931936165d113
  1. .bazelci/
  2. .bcr/
  3. .ci/
  4. .github/
  5. docs/
  6. examples/
  7. gazelle/
  8. proposals/
  9. python/
  10. sphinxdocs/
  11. tests/
  12. third_party/
  13. tools/
  14. .bazelignore
  15. .bazelrc
  16. .bazelversion
  17. .git-blame-ignore-revs
  18. .gitattributes
  19. .gitignore
  20. .pre-commit-config.yaml
  21. .readthedocs.yml
  22. addlicense.sh
  23. AUTHORS
  24. BUILD.bazel
  25. BZLMOD_SUPPORT.md
  26. CHANGELOG.md
  27. CONTRIBUTING.md
  28. CONTRIBUTORS
  29. DEVELOPING.md
  30. internal_deps.bzl
  31. internal_setup.bzl
  32. LICENSE
  33. MODULE.bazel
  34. README.md
  35. renovate.json
  36. version.bzl
  37. WORKSPACE
  38. 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.

Currently, the core rules build into the Bazel binary, and the symbols in this repository are simple aliases. However, we are migrating the rules to Starlark and removing them from the Bazel binary. Therefore, the future-proof way to depend on Python rules is via this repository. SeeMigrating from the Bundled Rules below.

The core rules are stable. Their implementation in Bazel is subject to Bazel's backward compatibility policy. Once migrated to rules_python, they may evolve at a different rate, but this repository will still 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.