v1.0.0

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{#v1-0-0-changed}

Changed

Breaking:

• (toolchains) stop exposing config settings in python toolchain alias repos.
  Please consider depending on the flags defined in
  //python/config_setting/... and the @platforms package instead.
• (toolchains) consumers who were depending on the MACOS_NAME and the arch
  attribute in the PLATFORMS list, please update your code to respect the new
  values. The values now correspond to the values available in the
  @platforms// package constraint values.
• (toolchains) host_platform and interpreter constants are no longer created
  in the toolchain generated alias .bzl files. If you need to access the
  host interpreter during the repository_rule evaluation, please use the
  @python_{version}_host//:python targets created by
  {bzl:obj}python_register_toolchains and
  {bzl:obj}python_register_multi_toolchains macros or the {bzl:obj}python
  bzlmod extension.
• (bzlmod) pip.parse.parse_all_requirements_files attribute has been removed.
  See notes in the previous versions about what to do.
• (deps) rules_cc 0.1.0 (workspace) and 0.0.16 (bzlmod).
• (deps) protobuf 29.0-rc2 (workspace; bzlmod already specifying that version).

Other changes:

• (python_repository) Start honoring the strip_prefix field for zstd archives.
• (pypi) {bzl:obj}pip_parse.extra_hub_aliases now works in WORKSPACE files.
• (binaries/tests) For {obj}--bootstrap_impl=script, a binary-specific (but
  otherwise empty) virtual env is used to customize sys.path initialization.
• (deps) bazel_skylib 1.7.0 (workspace; bzlmod already specifying that version)
• (deps) bazel_features 1.21.0; necessary for compatiblity with Bazel 8 rc3
• (deps) stardoc 0.7.2 to support Bazel 8.

{#v1-0-0-fixed}

Fixed

• (toolchains) stop depending on uname to get the value of the host platform.
• (pypi): Correctly handle multiple versions of the same package in the requirements
  files which is useful when including different PyTorch builds (e.g. <pytorch+cpu> vs <pytorch+cu118> ) for different target platforms.
  Fixes (2337).
• (uv): Correct the sha256sum for the uv binary for aarch64-apple-darwin.
  Fixes (2411).
• (binaries/tests) ({obj}--bootstrap_impl=scipt) Using sys.executable will
  use the same sys.path setup as the calling binary.
  (2169).
• (workspace) Corrected protobuf's name to com_google_protobuf, the name is
  hardcoded in Bazel, WORKSPACE mode.
• (pypi): {bzl:obj}compile_pip_requirements no longer fails on Windows when --enable_runfiles is not enabled.
• (pypi): {bzl:obj}compile_pip_requirements now correctly updates files in the source tree on Windows when --windows_enable_symlinks is not enabled.
• (repositories): Add libs/python3.lib and pythonXY.dll to the libpython target
  defined by a repository template. This enables stable ABI builds of Python extensions
  on Windows (by defining Py_LIMITED_API).
• (rules) py_test and py_binary targets no longer incorrectly remove the
  first sys.path entry when using {obj}--bootstrap_impl=script

{#v1-0-0-added}

Added

• (gazelle): Parser failures will now be logged to the terminal. Additional
  details can be logged by setting RULES_PYTHON_GAZELLE_VERBOSE=1.
• (toolchains) allow users to select which variant of the support host toolchain
  they would like to use through
  RULES_PYTHON_REPO_TOOLCHAIN_{VERSION}_{OS}_{ARCH} env variable setting. For
  example, this allows one to use freethreaded python interpreter in the
  repository_rule to build a wheel from sdist.
• (toolchain) The python interpreters targeting muslc libc have been added
  for the latest toolchain versions for each minor Python version. You can control
  the toolchain selection by using the
  {bzl:obj}//python/config_settings:py_linux_libc build flag.
• (providers) Added {obj}py_runtime_info.site_init_template and
  {obj}PyRuntimeInfo.site_init_template for specifying the template to use to
  initialize the interpreter via venv startup hooks.
• (runfiles) (Bazel 7.4+) Added support for spaces and newlines in runfiles paths

{#v1-0-0-removed}

Removed

• (pypi): Remove pypi_install_dependencies macro that has been included in
  {bzl:obj}py_repositories for a long time.
• (bzlmod): Remove DEFAULT_PYTHON_VERSION from interpreters.bzl file. If
  you need the version, please use it from the versions.bzl file instead.

{#v0-40-0}