Function _broadcast_compat_data

xarray/core/variable.py:3057–3079

(self, other)

def _broadcast_compat_data(self, other):
    if not OPTIONS["arithmetic_broadcast"] and (
        (isinstance(other, Variable) and self.dims != other.dims)
        or (is_duck_array(other) and self.ndim != other.ndim)
    ):
        raise ValueError(
            "Broadcasting is necessary but automatic broadcasting is disabled via "
            "global option `'arithmetic_broadcast'`. "
            "Use `xr.set_options(arithmetic_broadcast=True)` to enable automatic broadcasting."
        )

    if all(hasattr(other, attr) for attr in ["dims", "data", "shape", "encoding"]):
        # `other` satisfies the necessary Variable API for broadcast_variables
        new_self, new_other = _broadcast_compat_variables(self, other)
        self_data = new_self.data
        other_data = new_other.data
        dims = new_self.dims
    else:
        # rely on numpy broadcasting rules
        self_data = self.data
        other_data = other
        dims = self.dims
    return self_data, other_data, dims


def concat(