py/generate_version_module.py

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"""Writes `selenium/_version.py` from the root `version.bzl` for docs builds outside Bazel.

Bazel generates this module during the build; Read the Docs and the tox `docs` env import
`selenium` straight from the source tree, so they run this first.
"""

import re
from pathlib import Path

py_root = Path(__file__).resolve().parent
version_bzl = py_root.parent / "version.bzl"
match = re.search(r'^\s*"python": "([^"]+)"', version_bzl.read_text(), re.MULTILINE)
if not match:
    raise SystemExit(f"No python entry in {version_bzl}")
(py_root / "selenium" / "_version.py").write_text(f'__version__ = "{match.group(1)}"\n')