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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _auto_unlock_key_position(self):
 """Find the open sesame password in the default keyring """

        found_pos = None
        default_keyring_ids = gkr.list_item_ids_sync(self.default_keyring)
        for pos in default_keyring_ids:
            item_attrs = gkr.item_get_attributes_sync(self.default_keyring, pos)
            app = 'application'
            if item_attrs.has_key(app) and item_attrs[app] == "opensesame":
                found_pos = pos
                break
        return found_pos