def stringify_slice_key()

in model_card_toolkit/utils/graphics.py [0:0]

• 12 lines of code
• 5 McCabe index (conditional complexity)

def stringify_slice_key(slice_key: SliceKeyType) -> Tuple[str, str]:
  """Stringifies a slice key.

  The string representation of a SingletonSliceKeyType is "feature:value". When
  multiple columns / features are specified, the string representation of a
  SliceKeyType is "c1, c2, ...:v1, v2, ..." where c1, c2, ... are the column
  names and v1, v2, ... are the corresponding values For example,
  ('gender, 'f'), ('age', 5) befores age, gender:f, 5. If no columns / feature
  specified, return "Overall".

  Note that we do not perform special escaping for slice values that contain
  ', '. This stringified representation is meant to be human-readbale rather
  than a reversible encoding.

  The columns will be in the same order as in SliceKeyType. If they are
  generated using SingleSliceSpec.generate_slices, they will be in sorted order,
  ascending.

  Technically float values are not supported, but we don't check for them here.

  Args:
    slice_key: Slice key to stringify. The constituent SingletonSliceKeyTypes
      should be sorted in ascending order.

  Returns:
    A tuple of string representation of the slice key and slice value.
  """
  key_count = len(slice_key)
  if not key_count:
    return ('Overall', 'Overall')

  keys = []
  values = []
  separator = ', '

  for (feature, value) in slice_key:
    keys.append(feature)
    values.append(value)

  # To use u'{}' instead of '{}' here to avoid encoding a unicode character with
  # ascii codec.
  return (separator.join([u'{}'.format(key) for key in keys]),
          separator.join([u'{}'.format(value) for value in values]))