Method _check_open

tables/file.py:2324–2331

Check the state of the file. If the file is closed, a `ClosedFileError` is raised.

(self)

        return group._f_walk_groups()

    def _check_open(self) -> None:
        """Check the state of the file.

        If the file is closed, a `ClosedFileError` is raised.

        """
        if not self.isopen:
            raise ClosedFileError("the file object is closed")

    def _iswritable(self) -> bool:
        """Return True if the file is writable."""