LangChain Reference home pageLangChain ReferenceLangChain Reference
  • GitHub
  • Main Docs
Deep Agents
LangChain
LangGraph
Integrations
LangSmith
  • Overview
    • Overview
    • Caches
    • Callbacks
    • Documents
    • Document loaders
    • Embeddings
    • Exceptions
    • Language models
    • Serialization
    • Output parsers
    • Prompts
    • Rate limiters
    • Retrievers
    • Runnables
    • Utilities
    • Vector stores
    MCP Adapters
    Standard Tests
    Text Splitters
    ⌘I

    LangChain Assistant

    Ask a question to get started

    Enter to send•Shift+Enter new line

    Menu

    OverviewCachesCallbacksDocumentsDocument loadersEmbeddingsExceptionsLanguage modelsSerializationOutput parsersPromptsRate limitersRetrieversRunnablesUtilitiesVector stores
    MCP Adapters
    Standard Tests
    Text Splitters
    Language
    Theme
    Pythonlangchain-corepromptsbaseBasePromptTemplatepartial
    Methodā—Since v0.1

    partial

    Copy
    partial(
      self,
      **kwargs: str | Callable[[], str] = {}
    ) ->
    View source on GitHub
    BasePromptTemplate
    [
    FormatOutputType
    ]

    Parameters

    NameTypeDescription
    **kwargsstr | Callable[[], str]
    Default:{}

    Return a partial of the prompt template.

    Partial variables to set.