Function _mapping_repr

xarray/core/formatting.py:385–428

(
    mapping,
    title,
    summarizer,
    expand_option_name,
    col_width=None,
    max_rows=None,
    indexes=None,
)

def _mapping_repr(
    mapping,
    title,
    summarizer,
    expand_option_name,
    col_width=None,
    max_rows=None,
    indexes=None,
):
    if col_width is None:
        col_width = _calculate_col_width(mapping)

    summarizer_kwargs = defaultdict(dict)
    if indexes is not None:
        summarizer_kwargs = {k: {"is_index": k in indexes} for k in mapping}

    summary = [f"{title}:"]
    if mapping:
        len_mapping = len(mapping)
        if not _get_boolean_with_default(expand_option_name, default=True):
            summary = [f"{summary[0]} ({len_mapping})"]
        elif max_rows is not None and len_mapping > max_rows:
            summary = [f"{summary[0]} ({max_rows}/{len_mapping})"]
            first_rows = calc_max_rows_first(max_rows)
            keys = list(mapping.keys())
            summary += [
                summarizer(k, mapping[k], col_width, **summarizer_kwargs[k])
                for k in keys[:first_rows]
            ]
            if max_rows > 1:
                last_rows = calc_max_rows_last(max_rows)
                summary += [pretty_print("    ...", col_width) + " ..."]
                summary += [
                    summarizer(k, mapping[k], col_width, **summarizer_kwargs[k])
                    for k in keys[-last_rows:]
                ]
        else:
            summary += [
                summarizer(k, v, col_width, **summarizer_kwargs[k])
                for k, v in mapping.items()
            ]
    else:
        summary += [EMPTY_REPR]
    return "\n".join(summary)


data_vars_repr = functools.partial(