def begin_site(self):
        for resource in self.site.content.walk_resources():
            if self._should_parse_resource(resource):
                new_name = resource.source_file.name_without_extension + ".css"
                target_folder = File(resource.relative_deploy_path).parent
                resource.relative_deploy_path = target_folder.child(new_name)
                self.resources.append(resource.relative_path)
Use like this:
dataset/ETHPy150Open hyde/hyde/hyde/ext/plugins/css.py/SassPlugin.begin_site--crossover with--dataset/ETHPy150Open Backblaze/B2_Command_Line_Tool/b2/b2http.py/B2Http.post_content_return_json