def remove(self, name):
        """ Remove a column of data.

        Args:
            name (str) : name of the column to remove

        Returns:
            None

        .. note::
            If the column name does not exist, a warning is issued.

        """
        try:
            self.column_names.remove(name)
            del self.data[name]
        except (__HOLE__, KeyError):
            import warnings
            warnings.warn("Unable to find column '%s' in data source" % name)
dataset/ETHPy150Open bokeh/bokeh/bokeh/models/sources.py/ColumnDataSource.remove