feat: Migrate langchain functionality into braintrust package - #150

Merged
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
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cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Mar 31, 2026
Merged

feat: Migrate langchain functionality into braintrust package#150
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation

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@viadezo1erCedric / ViaDézo1er (viadezo1er) commented Mar 25, 2026•
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Fix#27

Migrates braintrust-langchain to the main braintrust python pkg.

Migration Guide: braintrust-langchain to braintrust

Before

pip install braintrust-langchain
frombraintrust_langchainimportBraintrustCallbackHandler, set_global_handlerhandler=BraintrustCallbackHandler()
set_global_handler(handler)

After

pip install braintrust
frombraintrust.integrations.langchainimportBraintrustCallbackHandler, set_global_handler

What to update

  • Change imports from braintrust_langchain to braintrust.integrations.langchain
  • Remove braintrust-langchain from your dependencies — braintrust now includes LangChain support with no extra package

Coming soon

Auto-instrumentation support for the langchain integration

@viadezo1er
Cedric / ViaDézo1er (viadezo1er) marked this pull request as ready for review March 26, 2026 17:05
AbhiPrasad
Abhijeet Prasad (AbhiPrasad) reviewed Mar 26, 2026
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Can we use git mv on the code in https://github.com/braintrustdata/braintrust-sdk-python/tree/main/integrations/langchain-py/src/braintrust_langchain? That way we maintain git history for the moved files.

We can do the same thing we did in adk-py, and just leave a deprecation warning + move the files https://github.com/braintrustdata/braintrust-sdk-python/blob/main/integrations/adk-py/src/braintrust_adk/__init__.py

Comment threadpy/src/braintrust/wrappers/langchain.py Outdated
self, response: list[Document], *, run_id: UUID, parent_run_id: UUID | None = None, **kwargs: Any
) -> Any:
pass
__all__ = ["BraintrustCallbackHandler", "BraintrustTracer", "set_global_handler", "clear_global_handler"]

@AbhiPrasadAbhijeet Prasad (AbhiPrasad)Mar 26, 2026

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Removing BraintrustTracer is a breaking change. We can do this, but I would prefer not to do it. Instead let's leave a note at the top of the file that braintrust.integrations.langchain is the new import, and update the _logger.warning in BraintrustTracer to have the new deprecation.

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Cedric / ViaDézo1er (viadezo1er)force-pushed the cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation branch 2 times, most recently from cd63e1c to 37039ceCompareMarch 27, 2026 21:48
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Cedric / ViaDézo1er (viadezo1er)force-pushed the cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation branch from b578692 to e3f7a17CompareMarch 30, 2026 16:59
@AbhiPrasadAbhijeet Prasad (AbhiPrasad) changed the title migrate langchain into braintrust pkg without auto instrumentationfeat: Migrate langchain functionality into braintrust packageMar 31, 2026
@AbhiPrasadAbhijeet Prasad (AbhiPrasad) mentioned this pull request Mar 31, 2026
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Review the following changes in direct dependencies. Learn more about Socket for GitHub.

DiffPackageSupply Chain
Security		VulnerabilityQualityMaintenanceLicense
Updatedbraintrust@​0.2.9 ⏵ 0.11.073-22100100100100
Addedlangchain-core@​1.2.88084100100100
Addedjsonschema@​4.26.099100100100100
Addedlangchain-anthropic@​0.3.2299100100100100
Addedlangchain-anthropic@​1.3.1100100100100100
Addedlangchain-openai@​0.3.35100100100100100
Addedlangchain-openai@​1.1.7100100100100100
Addedlangchain-core@​0.3.8310084100100100

View full report

@AbhiPrasad
Abhijeet Prasad (AbhiPrasad) merged commit e09f625 into mainMar 31, 2026
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Migrate braintrust-langchain into main braintrust package.

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feat: Migrate langchain functionality into braintrust package - #150
Merged
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Mar 31, 2026
Merged
feat: Migrate langchain functionality into braintrust package#150
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
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@viadezo1er
@viadezo1erCedric / ViaDézo1er (viadezo1er)
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Fix#27
Migrates braintrust-langchain to the main braintrust python pkg.
Migration Guide: braintrust-langchain to braintrust
Before
pip install braintrust-langchain
frombraintrust_langchainimportBraintrustCallbackHandler, set_global_handlerhandler=BraintrustCallbackHandler()
set_global_handler(handler)
After
pip install braintrust
frombraintrust.integrations.langchainimportBraintrustCallbackHandler, set_global_handler
What to update
  • Change imports from braintrust_langchain to braintrust.integrations.langchain
  • Remove braintrust-langchain from your dependencies — braintrust now includes LangChain support with no extra package
Coming soon
Auto-instrumentation support for the langchain integration
@viadezo1er
Cedric / ViaDézo1er (viadezo1er)
marked this pull request as ready for review
March 26, 2026 17:05
AbhiPrasad
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Can we use git mv on the code in https://github.com/braintrustdata/braintrust-sdk-python/tree/main/integrations/langchain-py/src/braintrust_langchain? That way we maintain git history for the moved files.
We can do the same thing we did in adk-py, and just leave a deprecation warning + move the files https://github.com/braintrustdata/braintrust-sdk-python/blob/main/integrations/adk-py/src/braintrust_adk/__init__.py
Comment threadpy/src/braintrust/wrappers/langchain.py
Outdated

 self, response: list[Document], *, run_id: UUID, parent_run_id: UUID | None = None, **kwargs: Any
 ) -> Any:
 pass
__all__ = ["BraintrustCallbackHandler", "BraintrustTracer", "set_global_handler", "clear_global_handler"]
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)Mar 26, 2026

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Removing BraintrustTracer is a breaking change. We can do this, but I would prefer not to do it. Instead let's leave a note at the top of the file that braintrust.integrations.langchain is the new import, and update the _logger.warning in BraintrustTracer to have the new deprecation.
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migrate langchain into braintrust pkg without auto instrumentationfeat: Migrate langchain functionality into braintrust packageMar 31, 2026
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Review the following changes in direct dependencies. Learn more about Socket for GitHub.
DiffPackageSupply Chain
Security		VulnerabilityQualityMaintenanceLicense
Updatedbraintrust@​0.2.9 ⏵ 0.11.073-22100100100100
Addedlangchain-core@​1.2.88084100100100
Addedjsonschema@​4.26.099100100100100
Addedlangchain-anthropic@​0.3.2299100100100100
Addedlangchain-anthropic@​1.3.1100100100100100
Addedlangchain-openai@​0.3.35100100100100100
Addedlangchain-openai@​1.1.7100100100100100
Addedlangchain-core@​0.3.8310084100100100
View full report
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This was referenced Mar 31, 2026
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Migrate braintrust-langchain into main braintrust package.


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feat: Migrate langchain functionality into braintrust package - #150
Merged
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Mar 31, 2026
Merged
feat: Migrate langchain functionality into braintrust package#150
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Conversation
@viadezo1er
@viadezo1erCedric / ViaDézo1er (viadezo1er)
commented
Mar 25, 2026•

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Fix#27
Migrates braintrust-langchain to the main braintrust python pkg.
Migration Guide: braintrust-langchain to braintrust
Before
pip install braintrust-langchain
frombraintrust_langchainimportBraintrustCallbackHandler, set_global_handlerhandler=BraintrustCallbackHandler()
set_global_handler(handler)
After
pip install braintrust
frombraintrust.integrations.langchainimportBraintrustCallbackHandler, set_global_handler
What to update
  • Change imports from braintrust_langchain to braintrust.integrations.langchain
  • Remove braintrust-langchain from your dependencies — braintrust now includes LangChain support with no extra package
Coming soon
Auto-instrumentation support for the langchain integration
@viadezo1er
Cedric / ViaDézo1er (viadezo1er)
marked this pull request as ready for review
March 26, 2026 17:05
AbhiPrasad
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Can we use git mv on the code in https://github.com/braintrustdata/braintrust-sdk-python/tree/main/integrations/langchain-py/src/braintrust_langchain? That way we maintain git history for the moved files.
We can do the same thing we did in adk-py, and just leave a deprecation warning + move the files https://github.com/braintrustdata/braintrust-sdk-python/blob/main/integrations/adk-py/src/braintrust_adk/__init__.py
Comment threadpy/src/braintrust/wrappers/langchain.py
Outdated

 self, response: list[Document], *, run_id: UUID, parent_run_id: UUID | None = None, **kwargs: Any
 ) -> Any:
 pass
__all__ = ["BraintrustCallbackHandler", "BraintrustTracer", "set_global_handler", "clear_global_handler"]
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)Mar 26, 2026

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Removing BraintrustTracer is a breaking change. We can do this, but I would prefer not to do it. Instead let's leave a note at the top of the file that braintrust.integrations.langchain is the new import, and update the _logger.warning in BraintrustTracer to have the new deprecation.
@viadezo1er
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@AbhiPrasadAbhijeet Prasad (AbhiPrasad)
changed the title
migrate langchain into braintrust pkg without auto instrumentationfeat: Migrate langchain functionality into braintrust packageMar 31, 2026
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)
mentioned this pull request
Mar 31, 2026
 Closed

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Review the following changes in direct dependencies. Learn more about Socket for GitHub.
DiffPackageSupply Chain
Security		VulnerabilityQualityMaintenanceLicense
Updatedbraintrust@​0.2.9 ⏵ 0.11.073-22100100100100
Addedlangchain-core@​1.2.88084100100100
Addedjsonschema@​4.26.099100100100100
Addedlangchain-anthropic@​0.3.2299100100100100
Addedlangchain-anthropic@​1.3.1100100100100100
Addedlangchain-openai@​0.3.35100100100100100
Addedlangchain-openai@​1.1.7100100100100100
Addedlangchain-core@​0.3.8310084100100100
View full report
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This was referenced Mar 31, 2026
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Migrate braintrust-langchain into main braintrust package.


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feat: Migrate langchain functionality into braintrust package - #150
Merged
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Mar 31, 2026
Merged
feat: Migrate langchain functionality into braintrust package#150
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
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@viadezo1erCedric / ViaDézo1er (viadezo1er)
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Fix#27
Migrates braintrust-langchain to the main braintrust python pkg.
Migration Guide: braintrust-langchain to braintrust
Before
pip install braintrust-langchain
frombraintrust_langchainimportBraintrustCallbackHandler, set_global_handlerhandler=BraintrustCallbackHandler()
set_global_handler(handler)
After
pip install braintrust
frombraintrust.integrations.langchainimportBraintrustCallbackHandler, set_global_handler
What to update
  • Change imports from braintrust_langchain to braintrust.integrations.langchain
  • Remove braintrust-langchain from your dependencies — braintrust now includes LangChain support with no extra package
Coming soon
Auto-instrumentation support for the langchain integration
@viadezo1er
Cedric / ViaDézo1er (viadezo1er)
marked this pull request as ready for review
March 26, 2026 17:05
AbhiPrasad
Abhijeet Prasad (AbhiPrasad)
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Can we use git mv on the code in https://github.com/braintrustdata/braintrust-sdk-python/tree/main/integrations/langchain-py/src/braintrust_langchain? That way we maintain git history for the moved files.
We can do the same thing we did in adk-py, and just leave a deprecation warning + move the files https://github.com/braintrustdata/braintrust-sdk-python/blob/main/integrations/adk-py/src/braintrust_adk/__init__.py
Comment threadpy/src/braintrust/wrappers/langchain.py
Outdated

 self, response: list[Document], *, run_id: UUID, parent_run_id: UUID | None = None, **kwargs: Any
 ) -> Any:
 pass
__all__ = ["BraintrustCallbackHandler", "BraintrustTracer", "set_global_handler", "clear_global_handler"]
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)Mar 26, 2026

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Removing BraintrustTracer is a breaking change. We can do this, but I would prefer not to do it. Instead let's leave a note at the top of the file that braintrust.integrations.langchain is the new import, and update the _logger.warning in BraintrustTracer to have the new deprecation.
@viadezo1er
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migrate langchain into braintrust pkg without auto instrumentationfeat: Migrate langchain functionality into braintrust packageMar 31, 2026
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Review the following changes in direct dependencies. Learn more about Socket for GitHub.
DiffPackageSupply Chain
Security		VulnerabilityQualityMaintenanceLicense
Updatedbraintrust@​0.2.9 ⏵ 0.11.073-22100100100100
Addedlangchain-core@​1.2.88084100100100
Addedjsonschema@​4.26.099100100100100
Addedlangchain-anthropic@​0.3.2299100100100100
Addedlangchain-anthropic@​1.3.1100100100100100
Addedlangchain-openai@​0.3.35100100100100100
Addedlangchain-openai@​1.1.7100100100100100
Addedlangchain-core@​0.3.8310084100100100
View full report
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try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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feat: Migrate langchain functionality into braintrust package - #150
Merged
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Mar 31, 2026
Merged
feat: Migrate langchain functionality into braintrust package#150
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
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@viadezo1er
@viadezo1erCedric / ViaDézo1er (viadezo1er)
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Fix#27
Migrates braintrust-langchain to the main braintrust python pkg.
Migration Guide: braintrust-langchain to braintrust
Before
pip install braintrust-langchain
frombraintrust_langchainimportBraintrustCallbackHandler, set_global_handlerhandler=BraintrustCallbackHandler()
set_global_handler(handler)
After
pip install braintrust
frombraintrust.integrations.langchainimportBraintrustCallbackHandler, set_global_handler
What to update
  • Change imports from braintrust_langchain to braintrust.integrations.langchain
  • Remove braintrust-langchain from your dependencies — braintrust now includes LangChain support with no extra package
Coming soon
Auto-instrumentation support for the langchain integration
@viadezo1er
Cedric / ViaDézo1er (viadezo1er)
marked this pull request as ready for review
March 26, 2026 17:05
AbhiPrasad
Abhijeet Prasad (AbhiPrasad)
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Can we use git mv on the code in https://github.com/braintrustdata/braintrust-sdk-python/tree/main/integrations/langchain-py/src/braintrust_langchain? That way we maintain git history for the moved files.
We can do the same thing we did in adk-py, and just leave a deprecation warning + move the files https://github.com/braintrustdata/braintrust-sdk-python/blob/main/integrations/adk-py/src/braintrust_adk/__init__.py
Comment threadpy/src/braintrust/wrappers/langchain.py
Outdated

 self, response: list[Document], *, run_id: UUID, parent_run_id: UUID | None = None, **kwargs: Any
 ) -> Any:
 pass
__all__ = ["BraintrustCallbackHandler", "BraintrustTracer", "set_global_handler", "clear_global_handler"]
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)Mar 26, 2026

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Removing BraintrustTracer is a breaking change. We can do this, but I would prefer not to do it. Instead let's leave a note at the top of the file that braintrust.integrations.langchain is the new import, and update the _logger.warning in BraintrustTracer to have the new deprecation.
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changed the title
migrate langchain into braintrust pkg without auto instrumentationfeat: Migrate langchain functionality into braintrust packageMar 31, 2026
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)
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Review the following changes in direct dependencies. Learn more about Socket for GitHub.
DiffPackageSupply Chain
Security		VulnerabilityQualityMaintenanceLicense
Updatedbraintrust@​0.2.9 ⏵ 0.11.073-22100100100100
Addedlangchain-core@​1.2.88084100100100
Addedjsonschema@​4.26.099100100100100
Addedlangchain-anthropic@​0.3.2299100100100100
Addedlangchain-anthropic@​1.3.1100100100100100
Addedlangchain-openai@​0.3.35100100100100100
Addedlangchain-openai@​1.1.7100100100100100
Addedlangchain-core@​0.3.8310084100100100
View full report
@AbhiPrasad
Abhijeet Prasad (AbhiPrasad)
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Abhijeet Prasad (AbhiPrasad)
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Migrate braintrust-langchain into main braintrust package.


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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
feat: Migrate langchain functionality into braintrust package - #150
Merged
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Mar 31, 2026
Merged
feat: Migrate langchain functionality into braintrust package#150
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Conversation
@viadezo1er
@viadezo1erCedric / ViaDézo1er (viadezo1er)
commented
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Fix#27
Migrates braintrust-langchain to the main braintrust python pkg.
Migration Guide: braintrust-langchain to braintrust
Before
pip install braintrust-langchain
frombraintrust_langchainimportBraintrustCallbackHandler, set_global_handlerhandler=BraintrustCallbackHandler()
set_global_handler(handler)
After
pip install braintrust
frombraintrust.integrations.langchainimportBraintrustCallbackHandler, set_global_handler
What to update
  • Change imports from braintrust_langchain to braintrust.integrations.langchain
  • Remove braintrust-langchain from your dependencies — braintrust now includes LangChain support with no extra package
Coming soon
Auto-instrumentation support for the langchain integration
@viadezo1er
Cedric / ViaDézo1er (viadezo1er)
marked this pull request as ready for review
March 26, 2026 17:05
AbhiPrasad
Abhijeet Prasad (AbhiPrasad)
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Can we use git mv on the code in https://github.com/braintrustdata/braintrust-sdk-python/tree/main/integrations/langchain-py/src/braintrust_langchain? That way we maintain git history for the moved files.
We can do the same thing we did in adk-py, and just leave a deprecation warning + move the files https://github.com/braintrustdata/braintrust-sdk-python/blob/main/integrations/adk-py/src/braintrust_adk/__init__.py
Comment threadpy/src/braintrust/wrappers/langchain.py
Outdated

 self, response: list[Document], *, run_id: UUID, parent_run_id: UUID | None = None, **kwargs: Any
 ) -> Any:
 pass
__all__ = ["BraintrustCallbackHandler", "BraintrustTracer", "set_global_handler", "clear_global_handler"]
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)Mar 26, 2026

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Removing BraintrustTracer is a breaking change. We can do this, but I would prefer not to do it. Instead let's leave a note at the top of the file that braintrust.integrations.langchain is the new import, and update the _logger.warning in BraintrustTracer to have the new deprecation.
@viadezo1er
Cedric / ViaDézo1er (viadezo1er)force-pushed
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@viadezo1er
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@AbhiPrasadAbhijeet Prasad (AbhiPrasad)
changed the title
migrate langchain into braintrust pkg without auto instrumentationfeat: Migrate langchain functionality into braintrust packageMar 31, 2026
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)
mentioned this pull request
Mar 31, 2026
 Closed

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Review the following changes in direct dependencies. Learn more about Socket for GitHub.
DiffPackageSupply Chain
Security		VulnerabilityQualityMaintenanceLicense
Updatedbraintrust@​0.2.9 ⏵ 0.11.073-22100100100100
Addedlangchain-core@​1.2.88084100100100
Addedjsonschema@​4.26.099100100100100
Addedlangchain-anthropic@​0.3.2299100100100100
Addedlangchain-anthropic@​1.3.1100100100100100
Addedlangchain-openai@​0.3.35100100100100100
Addedlangchain-openai@​1.1.7100100100100100
Addedlangchain-core@​0.3.8310084100100100
View full report
@AbhiPrasad
Abhijeet Prasad (AbhiPrasad)
merged commit e09f625
into
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29 checks passed

@AbhiPrasad
Abhijeet Prasad (AbhiPrasad)
deleted the

cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation

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March 31, 2026 20:22

This was referenced Mar 31, 2026
 Merged

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Migrate braintrust-langchain into main braintrust package.


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, 'i');
if (__m === '*' || __re.test(location.href)) {
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(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
feat: Migrate langchain functionality into braintrust package - #150
Merged
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Mar 31, 2026
Merged
feat: Migrate langchain functionality into braintrust package#150
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Conversation
@viadezo1er
@viadezo1erCedric / ViaDézo1er (viadezo1er)
commented
Mar 25, 2026•

edited

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Fix#27
Migrates braintrust-langchain to the main braintrust python pkg.
Migration Guide: braintrust-langchain to braintrust
Before
pip install braintrust-langchain
frombraintrust_langchainimportBraintrustCallbackHandler, set_global_handlerhandler=BraintrustCallbackHandler()
set_global_handler(handler)
After
pip install braintrust
frombraintrust.integrations.langchainimportBraintrustCallbackHandler, set_global_handler
What to update
  • Change imports from braintrust_langchain to braintrust.integrations.langchain
  • Remove braintrust-langchain from your dependencies — braintrust now includes LangChain support with no extra package
Coming soon
Auto-instrumentation support for the langchain integration
@viadezo1er
Cedric / ViaDézo1er (viadezo1er)
marked this pull request as ready for review
March 26, 2026 17:05
AbhiPrasad
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Can we use git mv on the code in https://github.com/braintrustdata/braintrust-sdk-python/tree/main/integrations/langchain-py/src/braintrust_langchain? That way we maintain git history for the moved files.
We can do the same thing we did in adk-py, and just leave a deprecation warning + move the files https://github.com/braintrustdata/braintrust-sdk-python/blob/main/integrations/adk-py/src/braintrust_adk/__init__.py
Comment threadpy/src/braintrust/wrappers/langchain.py
Outdated

 self, response: list[Document], *, run_id: UUID, parent_run_id: UUID | None = None, **kwargs: Any
 ) -> Any:
 pass
__all__ = ["BraintrustCallbackHandler", "BraintrustTracer", "set_global_handler", "clear_global_handler"]
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)Mar 26, 2026

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Removing BraintrustTracer is a breaking change. We can do this, but I would prefer not to do it. Instead let's leave a note at the top of the file that braintrust.integrations.langchain is the new import, and update the _logger.warning in BraintrustTracer to have the new deprecation.
@viadezo1er
Cedric / ViaDézo1er (viadezo1er)force-pushed
the
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@viadezo1er
Cedric / ViaDézo1er (viadezo1er)force-pushed
the
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@AbhiPrasadAbhijeet Prasad (AbhiPrasad)
changed the title
migrate langchain into braintrust pkg without auto instrumentationfeat: Migrate langchain functionality into braintrust packageMar 31, 2026
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)
mentioned this pull request
Mar 31, 2026
 Closed

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Review the following changes in direct dependencies. Learn more about Socket for GitHub.
DiffPackageSupply Chain
Security		VulnerabilityQualityMaintenanceLicense
Updatedbraintrust@​0.2.9 ⏵ 0.11.073-22100100100100
Addedlangchain-core@​1.2.88084100100100
Addedjsonschema@​4.26.099100100100100
Addedlangchain-anthropic@​0.3.2299100100100100
Addedlangchain-anthropic@​1.3.1100100100100100
Addedlangchain-openai@​0.3.35100100100100100
Addedlangchain-openai@​1.1.7100100100100100
Addedlangchain-core@​0.3.8310084100100100
View full report
@AbhiPrasad
Abhijeet Prasad (AbhiPrasad)
merged commit e09f625
into
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29 checks passed

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Abhijeet Prasad (AbhiPrasad)
deleted the

cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation

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March 31, 2026 20:22

This was referenced Mar 31, 2026
 Merged

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Migrate braintrust-langchain into main braintrust package.


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, 'i');
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})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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feat: Migrate langchain functionality into braintrust package - #150
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Abhijeet Prasad (AbhiPrasad) merged 15 commits into
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cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
Mar 31, 2026
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feat: Migrate langchain functionality into braintrust package#150
Abhijeet Prasad (AbhiPrasad) merged 15 commits into
mainfrom 
cedric/migrate-langchain-into-braintrust-pkg-without-auto-instrumentation
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@viadezo1er
@viadezo1erCedric / ViaDézo1er (viadezo1er)
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Fix#27
Migrates braintrust-langchain to the main braintrust python pkg.
Migration Guide: braintrust-langchain to braintrust
Before
pip install braintrust-langchain
frombraintrust_langchainimportBraintrustCallbackHandler, set_global_handlerhandler=BraintrustCallbackHandler()
set_global_handler(handler)
After
pip install braintrust
frombraintrust.integrations.langchainimportBraintrustCallbackHandler, set_global_handler
What to update
  • Change imports from braintrust_langchain to braintrust.integrations.langchain
  • Remove braintrust-langchain from your dependencies — braintrust now includes LangChain support with no extra package
Coming soon
Auto-instrumentation support for the langchain integration
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Cedric / ViaDézo1er (viadezo1er)
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March 26, 2026 17:05
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Abhijeet Prasad (AbhiPrasad)
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Mar 26, 2026
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Can we use git mv on the code in https://github.com/braintrustdata/braintrust-sdk-python/tree/main/integrations/langchain-py/src/braintrust_langchain? That way we maintain git history for the moved files.
We can do the same thing we did in adk-py, and just leave a deprecation warning + move the files https://github.com/braintrustdata/braintrust-sdk-python/blob/main/integrations/adk-py/src/braintrust_adk/__init__.py
Comment threadpy/src/braintrust/wrappers/langchain.py
Outdated

 self, response: list[Document], *, run_id: UUID, parent_run_id: UUID | None = None, **kwargs: Any
 ) -> Any:
 pass
__all__ = ["BraintrustCallbackHandler", "BraintrustTracer", "set_global_handler", "clear_global_handler"]
@AbhiPrasadAbhijeet Prasad (AbhiPrasad)Mar 26, 2026

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Removing BraintrustTracer is a breaking change. We can do this, but I would prefer not to do it. Instead let's leave a note at the top of the file that braintrust.integrations.langchain is the new import, and update the _logger.warning in BraintrustTracer to have the new deprecation.
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migrate langchain into braintrust pkg without auto instrumentationfeat: Migrate langchain functionality into braintrust packageMar 31, 2026
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Review the following changes in direct dependencies. Learn more about Socket for GitHub.
DiffPackageSupply Chain
Security		VulnerabilityQualityMaintenanceLicense
Updatedbraintrust@​0.2.9 ⏵ 0.11.073-22100100100100
Addedlangchain-core@​1.2.88084100100100
Addedjsonschema@​4.26.099100100100100
Addedlangchain-anthropic@​0.3.2299100100100100
Addedlangchain-anthropic@​1.3.1100100100100100
Addedlangchain-openai@​0.3.35100100100100100
Addedlangchain-openai@​1.1.7100100100100100
Addedlangchain-core@​0.3.8310084100100100
View full report
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Abhijeet Prasad (AbhiPrasad)
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Migrate braintrust-langchain into main braintrust package.


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