Skip to main content
`Ctrl`+`K`

#

# Source code for langchain.output_parsers.list

    from __future__ import annotations

    from abc import abstractmethod
    from typing import List

    from langchain.schema import BaseOutputParser

    class ListOutputParser(BaseOutputParser):
        """Class to parse the output of an LLM call to a list."""

        @property
        def _type(self) -> str:
            return "list"

        @abstractmethod
        def parse(self, text: str) -> List[str]:
            """Parse the output of an LLM call."""

    class CommaSeparatedListOutputParser(ListOutputParser):
        """Parse out comma separated lists."""

        def get_format_instructions(self) -> str:
            return (
                "Your response should be a list of comma separated values, "
                "eg: `foo, bar, baz`"
            )

        def parse(self, text: str) -> List[str]:
            """Parse the output of an LLM call."""
            return text.strip().split(", ")