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docs: anthropic formatting cleanup (#31847)

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inline URLs, capitalization, code blocks
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Mason Daugherty 2025-07-03 10:50:23 -04:00 committed by GitHub
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3 changed files with 39 additions and 28 deletions
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58
libs/partners/anthropic/langchain_anthropic/chat_models.py
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@ -487,7 +487,8 @@ def _handle_anthropic_bad_request(e: anthropic.BadRequestError) -> None:
class ChatAnthropic(BaseChatModel): class ChatAnthropic(BaseChatModel):
"""Anthropic chat models. """Anthropic chat models.
See https://docs.anthropic.com/en/docs/models-overview for a list of the latest models. See `Anthropic's docs <https://docs.anthropic.com/en/docs/models-overview>`__ for a
list of the latest models.
Setup: Setup:
Install ``langchain-anthropic`` and set environment variable ``ANTHROPIC_API_KEY``. Install ``langchain-anthropic`` and set environment variable ``ANTHROPIC_API_KEY``.
@ -499,9 +500,9 @@ class ChatAnthropic(BaseChatModel):
Key init args — completion params: Key init args — completion params:
model: str model: str
Name of Anthropic model to use. E.g. "claude-3-sonnet-20240229". Name of Anthropic model to use. e.g. ``'claude-3-sonnet-20240229'``.
temperature: float temperature: float
Sampling temperature. Ranges from 0.0 to 1.0. Sampling temperature. Ranges from ``0.0`` to ``1.0``.
max_tokens: int max_tokens: int
Max number of tokens to generate. Max number of tokens to generate.
@ -511,7 +512,8 @@ class ChatAnthropic(BaseChatModel):
max_retries: int max_retries: int
Max number of retries if a request fails. Max number of retries if a request fails.
api_key: Optional[str] api_key: Optional[str]
Anthropic API key. If not passed in will be read from env var ANTHROPIC_API_KEY. Anthropic API key. If not passed in will be read from env var
``ANTHROPIC_API_KEY``.
base_url: Optional[str] base_url: Optional[str]
Base URL for API requests. Only specify if using a proxy or service Base URL for API requests. Only specify if using a proxy or service
emulator. emulator.
@ -1183,8 +1185,8 @@ class ChatAnthropic(BaseChatModel):
"""Base URL for API requests. Only specify if using a proxy or service emulator. """Base URL for API requests. Only specify if using a proxy or service emulator.
If a value isn't passed in, will attempt to read the value first from If a value isn't passed in, will attempt to read the value first from
ANTHROPIC_API_URL and if that is not set, ANTHROPIC_BASE_URL. ``ANTHROPIC_API_URL`` and if that is not set, ``ANTHROPIC_BASE_URL``.
If neither are set, the default value of 'https://api.anthropic.com' will If neither are set, the default value of ``https://api.anthropic.com`` will
be used. be used.
""" """
@ -1192,8 +1194,7 @@ class ChatAnthropic(BaseChatModel):
alias="api_key", alias="api_key",
default_factory=secret_from_env("ANTHROPIC_API_KEY", default=""), default_factory=secret_from_env("ANTHROPIC_API_KEY", default=""),
) )
"""Automatically read from env var ``ANTHROPIC_API_KEY`` if not provided."""
"""Automatically read from env var `ANTHROPIC_API_KEY` if not provided."""
default_headers: Optional[Mapping[str, str]] = None default_headers: Optional[Mapping[str, str]] = None
"""Headers to pass to the Anthropic clients, will be used for every API call.""" """Headers to pass to the Anthropic clients, will be used for every API call."""
@ -1211,7 +1212,7 @@ class ChatAnthropic(BaseChatModel):
"""Whether to use streaming or not.""" """Whether to use streaming or not."""
stream_usage: bool = True stream_usage: bool = True
"""Whether to include usage metadata in streaming output. If True, additional """Whether to include usage metadata in streaming output. If ``True``, additional
message chunks will be generated during the stream including usage metadata. message chunks will be generated during the stream including usage metadata.
""" """
@ -1570,7 +1571,7 @@ class ChatAnthropic(BaseChatModel):
tool_choice: Which tool to require the model to call. Options are: tool_choice: Which tool to require the model to call. Options are:
- name of the tool as a string or as dict ``{"type": "tool", "name": "<<tool_name>>"}``: calls corresponding tool; - name of the tool as a string or as dict ``{"type": "tool", "name": "<<tool_name>>"}``: calls corresponding tool;
- ``"auto"``, ``{"type: "auto"}``, or None: automatically selects a tool (including no tool); - ``"auto"``, ``{"type: "auto"}``, or ``None``: automatically selects a tool (including no tool);
- ``"any"`` or ``{"type: "any"}``: force at least one tool to be called; - ``"any"`` or ``{"type: "any"}``: force at least one tool to be called;
parallel_tool_calls: Set to ``False`` to disable parallel tool use. parallel_tool_calls: Set to ``False`` to disable parallel tool use.
Defaults to ``None`` (no specification, which allows parallel tool use). Defaults to ``None`` (no specification, which allows parallel tool use).
@ -1580,6 +1581,7 @@ class ChatAnthropic(BaseChatModel):
:meth:`~langchain_anthropic.chat_models.ChatAnthropic.bind`. :meth:`~langchain_anthropic.chat_models.ChatAnthropic.bind`.
Example: Example:
.. code-block:: python .. code-block:: python
from langchain_anthropic import ChatAnthropic from langchain_anthropic import ChatAnthropic
@ -1608,7 +1610,8 @@ class ChatAnthropic(BaseChatModel):
# id='run-87b1331e-9251-4a68-acef-f0a018b639cc-0' # id='run-87b1331e-9251-4a68-acef-f0a018b639cc-0'
# ) # )
Example — force tool call with tool_choice 'any': Example — force tool call with tool_choice ``'any'``:
.. code-block:: python .. code-block:: python
from langchain_anthropic import ChatAnthropic from langchain_anthropic import ChatAnthropic
@ -1630,7 +1633,8 @@ class ChatAnthropic(BaseChatModel):
llm_with_tools.invoke("what is the weather like in San Francisco",) llm_with_tools.invoke("what is the weather like in San Francisco",)
Example — force specific tool call with tool_choice '<name_of_tool>': Example — force specific tool call with tool_choice ``'<name_of_tool>'``:
.. code-block:: python .. code-block:: python
from langchain_anthropic import ChatAnthropic from langchain_anthropic import ChatAnthropic
@ -1652,6 +1656,7 @@ class ChatAnthropic(BaseChatModel):
llm_with_tools.invoke("what is the weather like in San Francisco",) llm_with_tools.invoke("what is the weather like in San Francisco",)
Example — cache specific tools: Example — cache specific tools:
.. code-block:: python .. code-block:: python
from langchain_anthropic import ChatAnthropic, convert_to_anthropic_tool from langchain_anthropic import ChatAnthropic, convert_to_anthropic_tool
@ -1754,28 +1759,29 @@ class ChatAnthropic(BaseChatModel):
for more on how to properly specify types and descriptions of for more on how to properly specify types and descriptions of
schema fields when specifying a Pydantic or TypedDict class. schema fields when specifying a Pydantic or TypedDict class.
include_raw: include_raw:
If False then only the parsed structured output is returned. If If ``False`` then only the parsed structured output is returned. If
an error occurs during model output parsing it will be raised. If True an error occurs during model output parsing it will be raised. If ``True``
then both the raw model response (a BaseMessage) and the parsed model then both the raw model response (a BaseMessage) and the parsed model
response will be returned. If an error occurs during output parsing it response will be returned. If an error occurs during output parsing it
will be caught and returned as well. The final output is always a dict will be caught and returned as well. The final output is always a dict
with keys "raw", "parsed", and "parsing_error". with keys ``raw``, ``parsed``, and ``parsing_error``.
kwargs: Additional keyword arguments are ignored. kwargs: Additional keyword arguments are ignored.
Returns: Returns:
A Runnable that takes same inputs as a :class:`~langchain_core.language_models.chat.BaseChatModel`. A Runnable that takes same inputs as a :class:`~langchain_core.language_models.chat.BaseChatModel`.
If ``include_raw`` is False and ``schema`` is a Pydantic class, Runnable outputs If ``include_raw`` is ``False`` and ``schema`` is a Pydantic class, Runnable outputs
an instance of ``schema`` (i.e., a Pydantic object). an instance of ``schema`` (i.e., a Pydantic object).
Otherwise, if ``include_raw`` is False then Runnable outputs a dict. Otherwise, if ``include_raw`` is ``False`` then Runnable outputs a dict.
If ``include_raw`` is True, then Runnable outputs a dict with keys: If ``include_raw`` is True, then Runnable outputs a dict with keys:
- ``"raw"``: BaseMessage - ``raw``: BaseMessage
- ``"parsed"``: None if there was a parsing error, otherwise the type depends on the ``schema`` as described above. - ``parsed``: None if there was a parsing error, otherwise the type depends on the ``schema`` as described above.
- ``"parsing_error"``: Optional[BaseException] - ``parsing_error``: Optional[BaseException]
Example: Pydantic schema (include_raw=False): Example: Pydantic schema (include_raw=False):
.. code-block:: python .. code-block:: python
from langchain_anthropic import ChatAnthropic from langchain_anthropic import ChatAnthropic
@ -1797,6 +1803,7 @@ class ChatAnthropic(BaseChatModel):
# ) # )
Example: Pydantic schema (include_raw=True): Example: Pydantic schema (include_raw=True):
.. code-block:: python .. code-block:: python
from langchain_anthropic import ChatAnthropic from langchain_anthropic import ChatAnthropic
@ -1818,6 +1825,7 @@ class ChatAnthropic(BaseChatModel):
# } # }
Example: Dict schema (include_raw=False): Example: Dict schema (include_raw=False):
.. code-block:: python .. code-block:: python
from langchain_anthropic import ChatAnthropic from langchain_anthropic import ChatAnthropic
@ -1902,6 +1910,7 @@ class ChatAnthropic(BaseChatModel):
to be converted to tool schemas. to be converted to tool schemas.
Basic usage: Basic usage:
.. code-block:: python .. code-block:: python
from langchain_anthropic import ChatAnthropic from langchain_anthropic import ChatAnthropic
@ -1920,6 +1929,7 @@ class ChatAnthropic(BaseChatModel):
14 14
Pass tool schemas: Pass tool schemas:
.. code-block:: python .. code-block:: python
from langchain_anthropic import ChatAnthropic from langchain_anthropic import ChatAnthropic
@ -1948,9 +1958,9 @@ class ChatAnthropic(BaseChatModel):
.. versionchanged:: 0.3.0 .. versionchanged:: 0.3.0
Uses Anthropic's token counting API to count tokens in messages. See: Uses Anthropic's `token counting API <https://docs.anthropic.com/en/docs/build-with-claude/token-counting>`__ to count tokens in messages.
https://docs.anthropic.com/en/docs/build-with-claude/token-counting
""" """ # noqa: E501
formatted_system, formatted_messages = _format_messages(messages) formatted_system, formatted_messages = _format_messages(messages)
if isinstance(formatted_system, str): if isinstance(formatted_system, str):
kwargs["system"] = formatted_system kwargs["system"] = formatted_system
@ -2044,7 +2054,7 @@ def _make_message_chunk_from_anthropic_event(
"""Convert Anthropic event to AIMessageChunk. """Convert Anthropic event to AIMessageChunk.
Note that not all events will result in a message chunk. In these cases Note that not all events will result in a message chunk. In these cases
we return None. we return ``None``.
""" """
message_chunk: Optional[AIMessageChunk] = None message_chunk: Optional[AIMessageChunk] = None
# See https://github.com/anthropics/anthropic-sdk-python/blob/main/src/anthropic/lib/streaming/_messages.py # noqa: E501 # See https://github.com/anthropics/anthropic-sdk-python/blob/main/src/anthropic/lib/streaming/_messages.py # noqa: E501

8
libs/partners/anthropic/langchain_anthropic/llms.py
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@ -66,15 +66,15 @@ class _AnthropicCommon(BaseLanguageModel):
"""Base URL for API requests. Only specify if using a proxy or service emulator. """Base URL for API requests. Only specify if using a proxy or service emulator.
If a value isn't passed in, will attempt to read the value from If a value isn't passed in, will attempt to read the value from
ANTHROPIC_API_URL. If not set, the default value of 'https://api.anthropic.com' will ``ANTHROPIC_API_URL``. If not set, the default value ``https://api.anthropic.com``
be used. will be used.
""" """
anthropic_api_key: SecretStr = Field( anthropic_api_key: SecretStr = Field(
alias="api_key", alias="api_key",
default_factory=secret_from_env("ANTHROPIC_API_KEY", default=""), default_factory=secret_from_env("ANTHROPIC_API_KEY", default=""),
) )
"""Automatically read from env var `ANTHROPIC_API_KEY` if not provided.""" """Automatically read from env var ``ANTHROPIC_API_KEY`` if not provided."""
HUMAN_PROMPT: Optional[str] = None HUMAN_PROMPT: Optional[str] = None
AI_PROMPT: Optional[str] = None AI_PROMPT: Optional[str] = None
@ -311,6 +311,7 @@ class AnthropicLLM(LLM, _AnthropicCommon):
Returns: Returns:
A generator representing the stream of tokens from Anthropic. A generator representing the stream of tokens from Anthropic.
Example: Example:
.. code-block:: python .. code-block:: python
prompt = "Write a poem about a stream." prompt = "Write a poem about a stream."
@ -347,6 +348,7 @@ class AnthropicLLM(LLM, _AnthropicCommon):
A generator representing the stream of tokens from Anthropic. A generator representing the stream of tokens from Anthropic.
Example: Example:
.. code-block:: python .. code-block:: python
prompt = "Write a poem about a stream." prompt = "Write a poem about a stream."
prompt = f"\n\nHuman: {prompt}\n\nAssistant:" prompt = f"\n\nHuman: {prompt}\n\nAssistant:"
generator = anthropic.stream(prompt) generator = anthropic.stream(prompt)

1
libs/partners/anthropic/langchain_anthropic/output_parsers.py
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@ -27,7 +27,6 @@ class ToolsOutputParser(BaseGenerationOutputParser):
Args: Args:
result: A list of Generations to be parsed. The Generations are assumed result: A list of Generations to be parsed. The Generations are assumed
to be different candidate outputs for a single model input. to be different candidate outputs for a single model input.
Returns: Returns:
Structured output. Structured output.
""" """