Method _get_axis_num

xarray/core/common.py:244–251

(self: Any, dim: Hashable)

            return self._get_axis_num(dim)

    def _get_axis_num(self: Any, dim: Hashable) -> int:
        _raise_if_any_duplicate_dimensions(self.dims)
        try:
            return self.dims.index(dim)
        except ValueError as err:
            raise ValueError(
                f"{dim!r} not found in array dimensions {self.dims!r}"
            ) from err

    @property
    def sizes(self: Any) -> Mapping[Hashable, int]: