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core[patch]: release 0.3.49 (#30500)

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ccurme 2025-03-26 13:26:32 -04:00 committed by GitHub
parent 299b222c53
commit 9a80be7bb7
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3 changed files with 32 additions and 14 deletions
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39
libs/core/langchain_core/callbacks/usage.py
View File

@ -23,18 +23,28 @@ class UsageMetadataCallbackHandler(BaseCallbackHandler):
from langchain.chat_models import init_chat_model
from langchain_core.callbacks import UsageMetadataCallbackHandler
llm = init_chat_model(model="openai:gpt-4o-mini")
llm_1 = init_chat_model(model="openai:gpt-4o-mini")
llm_2 = init_chat_model(model="anthropic:claude-3-5-haiku-latest")
callback = UsageMetadataCallbackHandler()
results = llm.batch(["Hello", "Goodbye"], config={"callbacks": [callback]})
print(callback.usage_metadata)
result_1 = llm_1.invoke("Hello", config={"callbacks": [callback]})
result_2 = llm_2.invoke("Hello", config={"callbacks": [callback]})
callback.usage_metadata
.. code-block:: none
{'output_token_details': {'audio': 0, 'reasoning': 0}, 'input_tokens': 17, 'output_tokens': 31, 'total_tokens': 48, 'input_token_details': {'cache_read': 0, 'audio': 0}}
{'gpt-4o-mini-2024-07-18': {'input_tokens': 8,
'output_tokens': 10,
'total_tokens': 18,
'input_token_details': {'audio': 0, 'cache_read': 0},
'output_token_details': {'audio': 0, 'reasoning': 0}},
'claude-3-5-haiku-20241022': {'input_tokens': 8,
'output_tokens': 21,
'total_tokens': 29,
'input_token_details': {'cache_read': 0, 'cache_creation': 0}}}
.. versionadded:: 0.3.49
""" # noqa: E501
"""
def __init__(self) -> None:
super().__init__()
@ -92,19 +102,28 @@ def get_usage_metadata_callback(
from langchain.chat_models import init_chat_model
from langchain_core.callbacks import get_usage_metadata_callback
llm = init_chat_model(model="openai:gpt-4o-mini")
llm_1 = init_chat_model(model="openai:gpt-4o-mini")
llm_2 = init_chat_model(model="anthropic:claude-3-5-haiku-latest")
with get_usage_metadata_callback() as cb:
llm.invoke("Hello")
llm.invoke("Goodbye")
llm_1.invoke("Hello")
llm_2.invoke("Hello")
print(cb.usage_metadata)
.. code-block:: none
{'output_token_details': {'audio': 0, 'reasoning': 0}, 'input_tokens': 17, 'output_tokens': 31, 'total_tokens': 48, 'input_token_details': {'cache_read': 0, 'audio': 0}}
{'gpt-4o-mini-2024-07-18': {'input_tokens': 8,
'output_tokens': 10,
'total_tokens': 18,
'input_token_details': {'audio': 0, 'cache_read': 0},
'output_token_details': {'audio': 0, 'reasoning': 0}},
'claude-3-5-haiku-20241022': {'input_tokens': 8,
'output_tokens': 21,
'total_tokens': 29,
'input_token_details': {'cache_read': 0, 'cache_creation': 0}}}
.. versionadded:: 0.3.49
""" # noqa: E501
"""
from langchain_core.tracers.context import register_configure_hook
usage_metadata_callback_var: ContextVar[Optional[UsageMetadataCallbackHandler]] = (

2
libs/core/pyproject.toml
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@ -17,7 +17,7 @@ dependencies = [
"pydantic<3.0.0,>=2.7.4; python_full_version >= \"3.12.4\"",
]
name = "langchain-core"
version = "0.3.48"
version = "0.3.49"
description = "Building applications with LLMs through composability"
readme = "README.md"

5
libs/core/uv.lock
View File

@ -1,5 +1,4 @@
version = 1
revision = 1
requires-python = ">=3.9, <4.0"
resolution-markers = [
"python_full_version >= '3.12.4'",
@ -936,7 +935,7 @@ wheels = [
[[package]]
name = "langchain-core"
version = "0.3.48"
version = "0.3.49"
source = { editable = "." }
dependencies = [
{ name = "jsonpatch" },
@ -1027,7 +1026,7 @@ typing = [
[[package]]
name = "langchain-tests"
version = "0.3.15"
version = "0.3.16"
source = { directory = "../standard-tests" }
dependencies = [
{ name = "httpx" },