aparse_with_prompt() — langchain Function Reference

Architecture documentation for the aparse_with_prompt() function in retry.py from the langchain codebase.

Function python OutputParsing StreamingParsers calls 1 called by 1

Entity Profile

OutputParsing→ StreamingParsers→ aparse_with_prompt() — langchain Function Reference

Dependency Diagram

graph TD
  af9365c1_7554_045e_da47_85d942fb6e5c["aparse_with_prompt()"]
  056612cb_8291_0c46_ab1b_ac10284862d6["RetryOutputParser"]
  af9365c1_7554_045e_da47_85d942fb6e5c -->|defined in| 056612cb_8291_0c46_ab1b_ac10284862d6
  95d8cdd7_ad78_0741_b125_a6ce998f7adf["aparse_with_prompt()"]
  95d8cdd7_ad78_0741_b125_a6ce998f7adf -->|calls| af9365c1_7554_045e_da47_85d942fb6e5c
  95d8cdd7_ad78_0741_b125_a6ce998f7adf["aparse_with_prompt()"]
  af9365c1_7554_045e_da47_85d942fb6e5c -->|calls| 95d8cdd7_ad78_0741_b125_a6ce998f7adf
  style af9365c1_7554_045e_da47_85d942fb6e5c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/output_parsers/retry.py lines 132–166

    async def aparse_with_prompt(self, completion: str, prompt_value: PromptValue) -> T:
        """Parse the output of an LLM call using a wrapped parser.

        Args:
            completion: The chain completion to parse.
            prompt_value: The prompt to use to parse the completion.

        Returns:
            The parsed completion.
        """
        retries = 0

        while retries <= self.max_retries:
            try:
                return await self.parser.aparse(completion)
            except OutputParserException as e:
                if retries == self.max_retries:
                    raise
                retries += 1
                if self.legacy and hasattr(self.retry_chain, "arun"):
                    completion = await self.retry_chain.arun(
                        prompt=prompt_value.to_string(),
                        completion=completion,
                        error=repr(e),
                    )
                else:
                    completion = await self.retry_chain.ainvoke(
                        {
                            "prompt": prompt_value.to_string(),
                            "completion": completion,
                        },
                    )

        msg = "Failed to parse"
        raise OutputParserException(msg)