pretty_repr() — langchain Function Reference

Architecture documentation for the pretty_repr() function in chat.py from the langchain codebase.

Function python PromptManagement ChatTemplates calls 1 called by 2

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PromptManagement→ ChatTemplates→ pretty_repr() — langchain Function Reference

Dependency Diagram

graph TD
  9774ca51_c1fb_c680_32ab_554a3b7f3c21["pretty_repr()"]
  894611e5_5039_7621_4673_821d0b9b6f17["_StringImageMessagePromptTemplate"]
  9774ca51_c1fb_c680_32ab_554a3b7f3c21 -->|defined in| 894611e5_5039_7621_4673_821d0b9b6f17
  47fe42aa_c8e0_87b2_ad04_4343c7ef26cb["pretty_repr()"]
  47fe42aa_c8e0_87b2_ad04_4343c7ef26cb -->|calls| 9774ca51_c1fb_c680_32ab_554a3b7f3c21
  8b62d957_2f91_a1a5_4cc0_40e77c03366e["pretty_repr()"]
  8b62d957_2f91_a1a5_4cc0_40e77c03366e -->|calls| 9774ca51_c1fb_c680_32ab_554a3b7f3c21
  47fe42aa_c8e0_87b2_ad04_4343c7ef26cb["pretty_repr()"]
  9774ca51_c1fb_c680_32ab_554a3b7f3c21 -->|calls| 47fe42aa_c8e0_87b2_ad04_4343c7ef26cb
  style 9774ca51_c1fb_c680_32ab_554a3b7f3c21 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/prompts/chat.py lines 646–660

    def pretty_repr(self, html: bool = False) -> str:
        """Human-readable representation.

        Args:
            html: Whether to format as HTML.

        Returns:
            Human-readable representation.
        """
        # TODO: Handle partials
        title = self.__class__.__name__.replace("MessagePromptTemplate", " Message")
        title = get_msg_title_repr(title, bold=html)
        prompts = self.prompt if isinstance(self.prompt, list) else [self.prompt]
        prompt_reprs = "\n\n".join(prompt.pretty_repr(html=html) for prompt in prompts)
        return f"{title}\n\n{prompt_reprs}"