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Use raise from statement so that users can find detailed error message (#11461)

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- **Description:** Use `raise from` statement so that users can find
detailed error message
  - **Tag maintainer:** @baskaryan, @eyurtsev, @hwchase17
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Yang, Bo 2023-10-10 17:25:23 -07:00 committed by GitHub
parent 9a0ed75a95
commit 3a82bd7bdb
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1 changed files with 4 additions and 2 deletions
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6
libs/langchain/langchain/agents/chat/output_parser.py
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@ -37,9 +37,11 @@ class ChatOutputParser(AgentOutputParser):
response["action"], response.get("action_input", {}), text response["action"], response.get("action_input", {}), text
) )
except Exception: except Exception as exc:
if not includes_answer: if not includes_answer:
raise OutputParserException(f"Could not parse LLM output: {text}") raise OutputParserException(
f"Could not parse LLM output: {text}"
) from exc
output = text.split(FINAL_ANSWER_ACTION)[-1].strip() output = text.split(FINAL_ANSWER_ACTION)[-1].strip()
return AgentFinish({"output": output}, text) return AgentFinish({"output": output}, text)