def _deserialize()

in elasticsearch/dsl/field.py [0:0]

• 19 lines of code
• 10 McCabe index (conditional complexity)

    def _deserialize(self, data: Any) -> Union[datetime, date]:
        if isinstance(data, str):
            try:
                data = parser.parse(data)
            except Exception as e:
                raise ValidationException(
                    f"Could not parse date from the value ({data!r})", e
                )
            # we treat the yyyy-MM-dd format as a special case
            if hasattr(self, "format") and self.format == "yyyy-MM-dd":
                data = data.date()

        if isinstance(data, datetime):
            if self._default_timezone and data.tzinfo is None:
                data = data.replace(tzinfo=self._default_timezone)
            return data
        if isinstance(data, date):
            return data
        if isinstance(data, int):
            # Divide by a float to preserve milliseconds on the datetime.
            return datetime.utcfromtimestamp(data / 1000.0)

        raise ValidationException(f"Could not parse date from the value ({data!r})")