migrate braintrust langchain into main pkg

integrations/langchain-py/README.md

@@ -1,9 +1,35 @@
-# braintrust-langchain
+# braintrust-langchain (DEPRECATED)
 
 [![PyPI version](https://img.shields.io/pypi/v/braintrust-langchain.svg)](https://pypi.org/project/braintrust-langchain/)
 
 SDK for integrating [Braintrust](https://braintrust.dev) with [LangChain](https://langchain.com/). This package provides a callback handler to automatically log LangChain executions to Braintrust.
 
+> **This package is deprecated.** The LangChain integration is now included in the main [`braintrust`](https://pypi.org/project/braintrust/) package.
+
+## Migration
+
+1. Remove `braintrust-langchain` from your dependencies
+2. Install or upgrade `braintrust`:
+   ```bash
+   pip install --upgrade braintrust
+   ```
+3. Update your imports:
+   ```python
+   # Before
+   from braintrust_langchain import BraintrustCallbackHandler, set_global_handler
+
+   # After (option 1: auto-instrument langchain library)
+   import braintrust
+   braintrust.auto_instrument()
+
+   # After (option 2: explicit)
+   from braintrust.integrations.langchain import BraintrustCallbackHandler, set_global_handler
+   ```
+
+The API is identical - no code changes needed beyond the import path.
+
+---
+
 ## Installation
 
 ```bash

integrations/langchain-py/pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "braintrust-langchain"
 version = "0.2.1"
-description = "Integration for LangChain and Braintrust Tracing"
+description = "DEPRECATED: LangChain integration is now included in the main braintrust package. Install braintrust instead."
 readme = "README.md"
 requires-python = ">=3.10"
 dependencies = [
@@ -10,9 +10,9 @@ dependencies = [
 ]
 license = "MIT"
 authors = [{ name = "Braintrust", email = "info@braintrust.dev" }]
-keywords = ["braintrust", "langchain", "llm", "tracing", "ai", "agents"]
+keywords = ["braintrust", "langchain", "llm", "tracing", "ai", "agents", "deprecated"]
 classifiers = [
-    "Development Status :: 4 - Beta",
+    "Development Status :: 7 - Inactive",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
@@ -73,4 +73,3 @@ known-third-party = ["braintrust", "langchain"]
 [tool.pytest.ini_options]
 testpaths = ["src/tests"]
 python_files = ["test_*.py"]
-addopts = "-v"

integrations/langchain-py/src/braintrust_langchain/__init__.py

@@ -1,4 +1,28 @@
-from .callbacks import BraintrustCallbackHandler
-from .context import set_global_handler
+"""
+DEPRECATED: braintrust-langchain is now part of the main braintrust package.
 
-__all__ = ["BraintrustCallbackHandler", "set_global_handler"]
+Install `braintrust` and use `braintrust.integrations.langchain` or
+`braintrust.auto_instrument()` instead. This package now re-exports from
+`braintrust.integrations.langchain` for backward compatibility.
+"""
+
+import warnings
+
+warnings.warn(
+    "braintrust-langchain is deprecated. The LangChain integration is now included in the "
+    "main 'braintrust' package. Use 'from braintrust.integrations.langchain import "
+    "BraintrustCallbackHandler' or 'braintrust.auto_instrument()' instead. "
+    "This package will be removed in a future release.",
+    DeprecationWarning,
+    stacklevel=2,
+)
+
+# Re-export public API from the new location for backward compatibility
+from braintrust.integrations.langchain import (  # noqa: E402, F401
+    BraintrustCallbackHandler,
+    BraintrustTracer,
+    clear_global_handler,
+    set_global_handler,
+)
+
+__all__ = ["BraintrustCallbackHandler", "BraintrustTracer", "set_global_handler", "clear_global_handler"]