def info(self, buf=None):
        """
        Concise summary of a Dataset variables and attributes.

        Parameters
        ----------
        buf : writable buffer, defaults to sys.stdout

        See Also
        --------
        pandas.DataFrame.assign
        netCDF's ncdump
        """

        if buf is None:  # pragma: no cover
            buf = sys.stdout

        lines = []
        lines.append('xarray.Dataset {')
        lines.append('dimensions:')
        for name, size in self.dims.items():
            lines.append('\t{name} = {size} ;'.format(name=name, size=size))
        lines.append('\nvariables:')
        for name, da in self.variables.items():
            dims = ', '.join(da.dims)
            lines.append('\t{type} {name}({dims}) ;'.format(
                type=da.dtype, name=name, dims=dims))
            for k, v in da.attrs.items():
                lines.append('\t\t{name}:{k} = {v} ;'.format(name=name, k=k,
                                                             v=v))
        lines.append('\n// global attributes:')
        for k, v in self.attrs.items():
            lines.append('\t:{k} = {v} ;'.format(k=k, v=v))
        lines.append('}')

        buf.write('\n'.join(lines))
Concise summary of a Dataset variables and attributes.

        Parameters
        ----------
        buf : writable buffer, defaults to sys.stdout

        See Also
        --------
        pandas.DataFrame.assign
        netCDF's ncdump