Function diff_datatree_repr

xarray/core/formatting.py:1159–1178

(a: DataTree, b: DataTree, compat)

def diff_datatree_repr(a: DataTree, b: DataTree, compat):
    summary = [
        f"Left and right {type(a).__name__} objects are not {_compat_to_str(compat)}"
    ]

    if compat == "identical" and (diff_name := diff_name_summary(a, b)):
        summary.append(diff_name)

    treestructure_diff = diff_treestructure(a, b)

    # If the trees structures are different there is no point comparing each node,
    # and doing so would raise an error.
    # TODO we could show any differences in nodes up to the first place that structure differs?
    if treestructure_diff is not None:
        summary.append(treestructure_diff)
    elif compat != "isomorphic":
        nodewise_diff = diff_nodewise_summary(a, b, compat)
        summary.append(nodewise_diff)

    return "\n\n".join(summary)


def inherited_vars(mapping: ChainMap) -> dict: