def __init__(self, aws_access_key_id=None, aws_secret_access_key=None,
                 is_secure=True, port=None, proxy=None, proxy_port=None,
                 proxy_user=None, proxy_pass=None, debug=0,
                 https_connection_factory=None, region=None, path='/',
                 converter=None, security_token=None):
        """
        For any keywords that aren't documented, refer to the parent class,
        :py:class:`boto.connection.AWSAuthConnection`. You can avoid having
        to worry about these keyword arguments by instantiating these objects
        via :py:func:`boto.connect_sdb`.
    
        :type region: :class:`boto.sdb.regioninfo.SDBRegionInfo`
        :keyword region: Explicitly specify a region. Defaults to ``us-east-1``
            if not specified. You may also specify the region in your ``boto.cfg``:

            .. code-block:: cfg

                [SDB]
                region = eu-west-1

        """
        if not region:
            region_name = boto.config.get('SDB', 'region', self.DefaultRegionName)
            for reg in boto.sdb.regions():
                if reg.name is region_name:
                    region = reg
                    break

        self.region = region
        AWSQueryConnection.__init__(self, aws_access_key_id,
                                    aws_secret_access_key,
                                    is_secure, port, proxy,
                                    proxy_port, proxy_user, proxy_pass,
                                    self.region.endpoint, debug,
                                    https_connection_factory, path,
                                    security_token=security_token)
        self.box_usage = 0.0
        self.converter = converter
        self.item_cls = Item
dataset/ETHPy150Open darcyliu/storyboard/boto/sdb/connection.py/SDBConnection.__init__/operator `==` -> `is`