label = f'[{label_formatter}..{label_formatter}): ' % (start, end)
label_width = len(label)
if max_label_width is None or label_width > max_label_width:
max_label_width = label_width
if start == last_bucket_start:
break
label = f'[{label_formatter}..{label_formatter}): ' % (start, end)
label_width = len(label)
if max_label_width is None or label_width > max_label_width:
max_label_width = label_width
if start == last_bucket_start:
break