Class SysPathsSnapshot

src/_pytest/pytester.py:641–646

class SysPathsSnapshot:
    def __init__(self) -> None:
        self.__saved = list(sys.path), list(sys.meta_path)

    def restore(self) -> None:
        sys.path[:], sys.meta_path[:] = self.__saved


_FileContent = tuple[str | bytes, ...] | list[str | bytes] | str | bytes