codekingpro/portable-devtools

1import os2import sys3from typing import TYPE_CHECKING4 5__all__ = ("cached_property", "under_cached_property")6 7 8NO_EXTENSIONS = bool(os.environ.get("PROPCACHE_NO_EXTENSIONS"))  # type: bool9if sys.implementation.name != "cpython":10    NO_EXTENSIONS = True11 12 13# isort: off14if TYPE_CHECKING:15    from ._helpers_py import cached_property as cached_property_py16    from ._helpers_py import under_cached_property as under_cached_property_py17 18    cached_property = cached_property_py19    under_cached_property = under_cached_property_py20elif not NO_EXTENSIONS:  # pragma: no branch21    try:22        from ._helpers_c import cached_property as cached_property_c  # type: ignore[attr-defined, unused-ignore]23        from ._helpers_c import under_cached_property as under_cached_property_c  # type: ignore[attr-defined, unused-ignore]24 25        cached_property = cached_property_c26        under_cached_property = under_cached_property_c27    except ImportError:  # pragma: no cover28        from ._helpers_py import cached_property as cached_property_py29        from ._helpers_py import under_cached_property as under_cached_property_py30 31        cached_property = cached_property_py  # type: ignore[assignment, misc]32        under_cached_property = under_cached_property_py33else:34    from ._helpers_py import cached_property as cached_property_py35    from ._helpers_py import under_cached_property as under_cached_property_py36 37    cached_property = cached_property_py  # type: ignore[assignment, misc]38    under_cached_property = under_cached_property_py39# isort: on40