Fixed #19989 -- Suppressed UnicodeWarning during BinaryField validation

    # Designates whether empty strings fundamentally are allowed at the

    # database level.

    empty_strings_allowed = True

    empty_values = list(validators.EMPTY_VALUES)

    # These track each time a Field instance is created. Used to retain order.

    # The auto_creation_counter is used for fields that Django implicitly

        return value

    def run_validators(self, value):

        if value in validators.EMPTY_VALUES:

        if value in self.empty_values:

            return

        errors = []

            # Skip validation for non-editable fields.

            return

        if self._choices and value not in validators.EMPTY_VALUES:

        if self._choices and value not in self.empty_values:

            for option_key, option_value in self.choices:

                if isinstance(option_value, (list, tuple)):

                    # This is an optgroup, so look inside the group for

        if value is None and not self.null:

            raise exceptions.ValidationError(self.error_messages['null'])

        if not self.blank and value in validators.EMPTY_VALUES:

        if not self.blank and value in self.empty_values:

            raise exceptions.ValidationError(self.error_messages['blank'])

    def clean(self, value, model_instance):

class BinaryField(Field):

    description = _("Raw binary data")

    empty_values = [None, b'']

    def __init__(self, *args, **kwargs):

        kwargs['editable'] = False