def serialize()

in src/dynamodb_encryption_sdk/internal/formatting/material_description.py [0:0]

• 11 lines of code
• 4 McCabe index (conditional complexity)

def serialize(material_description):
    # type: (Dict[Text, Text]) -> dynamodb_types.BINARY_ATTRIBUTE
    """Serialize a material description dictionary into a DynamodDB attribute.

    :param dict material_description: Material description dictionary
    :returns: Serialized material description as a DynamoDB binary attribute value
    :rtype: dict
    :raises InvalidMaterialDescriptionError: if invalid name or value found in material description
    """
    material_description_bytes = bytearray(_MATERIAL_DESCRIPTION_VERSION)

    for name, value in sorted(material_description.items(), key=lambda x: x[0]):
        try:
            material_description_bytes.extend(encode_value(to_bytes(name)))
            material_description_bytes.extend(encode_value(to_bytes(value)))
        except (TypeError, struct.error):
            raise InvalidMaterialDescriptionError(
                'Invalid name or value in material description: "{name}"="{value}"'.format(name=name, value=value)
            )

    # for some reason pylint can't follow the Enum member attributes
    return {Tag.BINARY.dynamodb_tag: bytes(material_description_bytes)}  # pylint: disable=no-member