_service.py 文件源码

def __call__(self, *args, **kwargs):
        # find the correct version / tagged view and call it.
        version, flag = parse_accept_headers(
            self.service.vendor, request.accept_mimetypes.values())
        if version is None:
            version = EndpointMap.DefaultView
        view = self.endpoint_map.get_view(version, flag)
        if view:
            return view(*args, **kwargs)
        else:
            description = "Could not find view for version '%s'" % version
            if flag is not None:
                description += " and flag '%s'" % flag
            raise NotAcceptable(description)