LangChain Python Integration

The braintrust-langchain package has been deprecated. The LangChain integration is now included in the main braintrust package. Please use pip install braintrust instead.

Migration

Update your installation and imports:

pip install braintrust

# Before (deprecated)
from braintrust_langchain import BraintrustCallbackHandler, set_global_handler

# After (option 1: auto-instrument)
import braintrust
braintrust.auto_instrument()

# After (option 2: explicit)
from braintrust.integrations.langchain import BraintrustCallbackHandler, set_global_handler

For the full integration guide, see LangChain integration.

Source Code

For the complete source code and additional examples, visit the Braintrust Python SDK repository.

Autoevals Python API

LangChain Python Integration

⌘I

​Migration

​Source Code

Migration

Source Code