Method set_node_attr

tables/file.py:2007–2038

Set a PyTables attribute for the given node. Parameters ---------- where, name These arguments work as in :meth:`File.get_node`, referencing the node to be acted upon. attrname The name of the attribute to set. attrvalue

(
        self,
        where: Node | str,
        attrname: str,
        attrvalue: Any,
        name: str | None = None,
    )

        return obj._f_getattr(attrname)

    def set_node_attr(
        self,
        where: Node | str,
        attrname: str,
        attrvalue: Any,
        name: str | None = None,
    ) -> None:
        """Set a PyTables attribute for the given node.

        Parameters
        ----------
        where, name
            These arguments work as in
            :meth:`File.get_node`, referencing the node to be acted upon.
        attrname
            The name of the attribute to set.
        attrvalue
            The value of the attribute to set. Any kind of Python
            object (like strings, ints, floats, lists, tuples, dicts,
            small NumPy objects ...) can be stored as an attribute.
            However, if necessary, pickle is automatically used so as
            to serialize objects that you might want to save.
            See the :class:`AttributeSet` class for details.

        Notes
        -----
        If the node already has a large number of attributes, a
        PerformanceWarning is issued.

        """
        obj = self.get_node(where, name=name)
        obj._f_setattr(attrname, attrvalue)

    def del_node_attr(
        self, where: Node | str, attrname: str, name: str | None = None