Method _copy

xarray/namedarray/core.py:346–364

(
        self,
        deep: bool = True,
        data: duckarray[_ShapeType_co, _DType_co] | None = None,
        memo: dict[int, Any] | None = None,
    )

        return cast("Self", self._new(dims, data, attrs))

    def _copy(
        self,
        deep: bool = True,
        data: duckarray[_ShapeType_co, _DType_co] | None = None,
        memo: dict[int, Any] | None = None,
    ) -> Self:
        if data is None:
            ndata = self._data
            if deep:
                ndata = copy.deepcopy(ndata, memo=memo)
        else:
            ndata = data
            self._check_shape(ndata)

        attrs = (
            copy.deepcopy(self._attrs, memo=memo) if deep else copy.copy(self._attrs)
        )

        return self._replace(data=ndata, attrs=attrs)

    def __copy__(self) -> Self:
        return self._copy(deep=False)