{"record":{"id":"bd16a0db7631402b","repo":"binary-husky/gpt_academic","slug":"cannot-convert-response-i-to-string-bd16a0","errorCode":null,"errorMessage":"Cannot convert response {i} to string","messagePattern":"Cannot convert response (.+?) to string","errorType":"exception","errorClass":"Exception","httpStatus":null,"severity":"warning","filePath":"crazy_functions/review_fns/query_analyzer.py","lineNumber":187,"sourceCode":"                llm_kwargs=new_llm_kwargs,\n                chatbot=chatbot,\n                history_array=[[] for _ in prompts],\n                sys_prompt_array=sys_prompts,\n                max_workers=5\n            )\n\n            # 从收集的响应中提取我们需要的内容\n            extracted_responses = []\n            for i in range(len(prompts)):\n                if (i * 2 + 1) < len(responses):\n                    response = responses[i * 2 + 1]\n                    if response is None:\n                        raise Exception(f\"Response {i} is None\")\n                    if not isinstance(response, str):\n                        try:\n                            response = str(response)\n                        except:\n                            raise Exception(f\"Cannot convert response {i} to string\")\n                    extracted_responses.append(response)\n                else:\n                    raise Exception(f\"未收到第 {i + 1} 个响应\")\n\n            # 解析基本信息\n            query_type = self._extract_tag(extracted_responses[self.BASIC_QUERY_INDEX], \"query_type\")\n            if not query_type:\n                print(\n                    f\"Debug - Failed to extract query_type. Response was: {extracted_responses[self.BASIC_QUERY_INDEX]}\")\n                raise Exception(\"无法提取query_type标签内容\")\n            query_type = query_type.lower()\n\n            main_topic = self._extract_tag(extracted_responses[self.BASIC_QUERY_INDEX], \"main_topic\")\n            if not main_topic:\n                print(f\"Debug - Failed to extract main_topic. Using query as fallback.\")\n                main_topic = query\n\n            query_type = self._normalize_query_type(query_type, query)","sourceCodeStart":169,"sourceCodeEnd":205,"githubUrl":"https://github.com/binary-husky/gpt_academic/blob/d6bde0fa54373309bd05823a49bda8da019d2c77/crazy_functions/review_fns/query_analyzer.py#L169-L205","documentation":"A defensive check in QueryAnalyzer: if a collected response is not a string and str(response) itself raises, it fails with Exception('Cannot convert response {i} to string'). In practice this branch is nearly unreachable because Python's str() almost never raises; when it does, the object came from a broken __str__ implementation in the response type returned by the LLM bridge.","triggerScenarios":"The multi-model bridge returns a non-str object (dict, generator, custom object) whose class defines a __str__ that raises; almost any realistic case stops earlier at str() succeeding, so hitting this exact line indicates an exotic response object from a custom model adapter.","commonSituations":"Custom local-model adapters plugged into the bridge that yield objects instead of strings; None handled separately, so this is only about objects with faulty __str__; extremely rare in stock setups.","solutions":["Identify the actual type of responses[i*2+1] by logging it before conversion.","Fix the model adapter/bridge to return plain str for assistant turns.","Catch and inspect: temporarily replace str(response) with repr(response) to see what the object is.","Update or align the custom model integration with the expected string-response contract."],"exampleFix":null,"handlingStrategy":"type-guard","validationCode":null,"typeGuard":"from typing import Any\n\ndef is_stringifiable(r: Any) -> bool:\n    try:\n        str(r)\n        return True\n    except Exception:\n        return False","tryCatchPattern":"try:\n    analyzed = analyzer.analyze(q)\nexcept Exception as e:\n    if 'Cannot convert response' in str(e):\n        logger.error('model adapter returned a non-string response; check bridge contract')\n    raise","preventionTips":["Custom model adapters should always return plain str for assistant turns.","Add an integration test that asserts every bridge response isinstance(response, str)."],"tags":["llm","type-conversion","defensive-check","query-analyzer"],"backgroundTag":null,"analyzedSha":"d6bde0fa54373309bd05823a49bda8da019d2c77","analyzedAt":"2026-08-14T22:48:35.038Z","schemaVersion":2},"datasetVersion":"2026-08-15T17:31:12.345Z"}