Better wrap traceable (#12303)

If user function is wrapped as a traceable function, this will help hand
off the trace between the two.

Also update handling fields to reflect optional values

libs/langchain/langchain/callbacks/tracers/log_stream.py

@@ -237,7 +237,7 @@ class LogStreamCallbackHandler(BaseTracer):
                         name=run.name,
                         type=run.run_type,
                         tags=run.tags or [],
-                        metadata=run.extra.get("metadata", {}),
+                        metadata=(run.extra or {}).get("metadata", {}),
                         start_time=run.start_time.isoformat(timespec="milliseconds"),
                         streamed_output_str=[],
                         final_output=None,
@@ -266,7 +266,9 @@ class LogStreamCallbackHandler(BaseTracer):
                     {
                         "op": "add",
                         "path": f"/logs/{index}/end_time",
-                        "value": run.end_time.isoformat(timespec="milliseconds"),
+                        "value": run.end_time.isoformat(timespec="milliseconds")
+                        if run.end_time is not None
+                        else None,
                     },
                 )
             )

libs/langchain/langchain/callbacks/tracers/schemas.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 
 import datetime
 import warnings
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List, Optional, Type
 from uuid import UUID
 
 from langsmith.schemas import RunBase as BaseRunV2
@@ -13,7 +13,7 @@ from langchain.pydantic_v1 import BaseModel, Field, root_validator
 from langchain.schema import LLMResult
 
 
-def RunTypeEnum() -> RunTypeEnumDep:
+def RunTypeEnum() -> Type[RunTypeEnumDep]:
     """RunTypeEnum."""
     warnings.warn(
         "RunTypeEnum is deprecated. Please directly use a string instead"
@@ -106,6 +106,7 @@ class Run(BaseRunV2):
     child_execution_order: int
     child_runs: List[Run] = Field(default_factory=list)
     tags: Optional[List[str]] = Field(default_factory=list)
+    events: List[Dict[str, Any]] = Field(default_factory=list)
 
     @root_validator(pre=True)
     def assign_name(cls, values: dict) -> dict:
@@ -115,6 +116,8 @@ class Run(BaseRunV2):
                 values["name"] = values["serialized"]["name"]
             elif "id" in values["serialized"]:
                 values["name"] = values["serialized"]["id"][-1]
+        if values.get("events") is None:
+            values["events"] = []
         return values
 
 

libs/langchain/langchain/callbacks/tracers/wandb.py

@@ -27,7 +27,9 @@ if TYPE_CHECKING:
 PRINT_WARNINGS = True
 
 
-def _serialize_io(run_inputs: dict) -> dict:
+def _serialize_io(run_inputs: Optional[dict]) -> dict:
+    if not run_inputs:
+        return {}
     from google.protobuf.json_format import MessageToJson
     from google.protobuf.message import Message
 
@@ -79,7 +81,9 @@ class RunProcessor:
             span_id=str(run.id) if run.id is not None else None,
             name=run.name,
             start_time_ms=int(run.start_time.timestamp() * 1000),
-            end_time_ms=int(run.end_time.timestamp() * 1000),
+            end_time_ms=int(run.end_time.timestamp() * 1000)
+            if run.end_time is not None
+            else None,
             status_code=self.trace_tree.StatusCode.SUCCESS
             if run.error is None
             else self.trace_tree.StatusCode.ERROR,
@@ -95,7 +99,7 @@ class RunProcessor:
         base_span = self._convert_run_to_wb_span(run)
         if base_span.attributes is None:
             base_span.attributes = {}
-        base_span.attributes["llm_output"] = run.outputs.get("llm_output", {})
+        base_span.attributes["llm_output"] = (run.outputs or {}).get("llm_output", {})
 
         base_span.results = [
             self.trace_tree.Result(

libs/langchain/langchain/chat_loaders/langsmith.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import logging
-from typing import TYPE_CHECKING, Dict, Iterable, Iterator, List, Optional, Union
+from typing import TYPE_CHECKING, Dict, Iterable, Iterator, List, Optional, Union, cast
 
 from langchain.chat_loaders.base import BaseChatLoader
 from langchain.load import load
@@ -79,7 +79,7 @@ class LangSmithRunChatLoader(BaseChatLoader):
         """
         if llm_run.run_type != "llm":
             raise ValueError(f"Expected run of type llm. Got: {llm_run.run_type}")
-        return llm_run.extra.get("invocation_params", {}).get("functions")
+        return (llm_run.extra or {}).get("invocation_params", {}).get("functions")
 
     def lazy_load(self) -> Iterator[ChatSession]:
         """
@@ -90,13 +90,15 @@ class LangSmithRunChatLoader(BaseChatLoader):
 
         :return: Iterator of chat sessions containing messages.
         """
+        from langsmith.schemas import Run
+
         for run_obj in self.runs:
             try:
                 if hasattr(run_obj, "id"):
                     run = run_obj
                 else:
                     run = self.client.read_run(run_obj)
-                session = self._load_single_chat_session(run)
+                session = self._load_single_chat_session(cast(Run, run))
                 yield session
             except ValueError as e:
                 logger.warning(f"Could not load run {run_obj}: {repr(e)}")

libs/langchain/langchain/smith/evaluation/runner_utils.py

@@ -19,7 +19,9 @@ from typing import (
     cast,
 )
 
-from langsmith import Client, RunEvaluator
+from langsmith.client import Client
+from langsmith.evaluation import RunEvaluator
+from langsmith.run_helpers import as_runnable, is_traceable_function
 from langsmith.schemas import Dataset, DataType, Example
 
 from langchain._api import warn_deprecated
@@ -152,6 +154,9 @@ def _wrap_in_chain_factory(
         lcf = llm_or_chain_factory
         return lambda: lcf
     elif callable(llm_or_chain_factory):
+        if is_traceable_function(llm_or_chain_factory):
+            runnable_ = as_runnable(cast(Callable, llm_or_chain_factory))
+            return lambda: runnable_
         try:
             _model = llm_or_chain_factory()  # type: ignore[call-arg]
         except TypeError:
@@ -166,6 +171,9 @@ def _wrap_in_chain_factory(
             # It's not uncommon to do an LLM constructor instead of raw LLM,
             # so we'll unpack it for the user.
             return _model
+        elif is_traceable_function(cast(Callable, _model)):
+            runnable_ = as_runnable(cast(Callable, _model))
+            return lambda: runnable_
         elif not isinstance(_model, Runnable):
             # This is unlikely to happen - a constructor for a model function
             return lambda: RunnableLambda(constructor)
@@ -879,7 +887,8 @@ def _prepare_eval_run(
             f"Project {project_name} already exists. Please use a different name."
         )
     print(
-        f"View the evaluation results for project '{project_name}' at:\n{project.url}",
+        f"View the evaluation results for project '{project_name}'"
+        f" at:\n{project.url}?eval=true",
         flush=True,
     )
     examples = list(client.list_examples(dataset_id=dataset.id))
@@ -909,7 +918,7 @@ def _prepare_run_on_dataset(
     )
     wrapped_model = _wrap_in_chain_factory(llm_or_chain_factory)
     run_evaluators = _setup_evaluation(
-        wrapped_model, examples, evaluation, dataset.data_type
+        wrapped_model, examples, evaluation, dataset.data_type or DataType.kv
     )
     _validate_example_inputs(examples[0], wrapped_model, input_mapper)
     progress_bar = progress.ProgressBarCallback(len(examples))

libs/langchain/poetry.lock

@@ -3729,7 +3729,6 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*, !=3.6.*"
 files = [
     {file = "jsonpointer-2.4-py2.py3-none-any.whl", hash = "sha256:15d51bba20eea3165644553647711d150376234112651b4f1811022aecad7d7a"},
-    {file = "jsonpointer-2.4.tar.gz", hash = "sha256:585cee82b70211fa9e6043b7bb89db6e1aa49524340dde8ad6b63206ea689d88"},
 ]
 
 [[package]]
@@ -4098,13 +4097,13 @@ all = ["datasets (>=2.12.0,<3.0.0)", "evaluate (>=0.4.0,<0.5.0)", "faiss-cpu (>=
 
 [[package]]
 name = "langsmith"
-version = "0.0.44"
+version = "0.0.52"
 description = "Client library to connect to the LangSmith LLM Tracing and Evaluation Platform."
 optional = false
 python-versions = ">=3.8.1,<4.0"
 files = [
-    {file = "langsmith-0.0.44-py3-none-any.whl", hash = "sha256:5e7e5b45360ce89a2d5d6066a3b9fdd31b1f874a0cf19b1666c9792fecef0a1b"},
-    {file = "langsmith-0.0.44.tar.gz", hash = "sha256:74a262ba23a958ca1a4863d5386c151be462e40ccfcb8b39d0a5d8c9eaa40164"},
+    {file = "langsmith-0.0.52-py3-none-any.whl", hash = "sha256:d02a0ade5a53b36143084e57003ed38ccbdf5fc15a5a0eb14f8989ceaee0b807"},
+    {file = "langsmith-0.0.52.tar.gz", hash = "sha256:1dc29082d257deea1859cb22c53d9481ca5c4a37f3af40c0f9d300fb8adc91db"},
 ]
 
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-    {file = "scikit_learn-1.3.1-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:0c275a06c5190c5ce00af0acbb61c06374087949f643ef32d355ece12c4db043"},
-    {file = "scikit_learn-1.3.1-cp312-cp312-win_amd64.whl", hash = "sha256:0e1aa8f206d0de814b81b41d60c1ce31f7f2c7354597af38fae46d9c47c45122"},
     {file = "scikit_learn-1.3.1-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:52b77cc08bd555969ec5150788ed50276f5ef83abb72e6f469c5b91a0009bbca"},
     {file = "scikit_learn-1.3.1-cp38-cp38-macosx_12_0_arm64.whl", hash = "sha256:a683394bc3f80b7c312c27f9b14ebea7766b1f0a34faf1a2e9158d80e860ec26"},
     {file = "scikit_learn-1.3.1-cp38-cp38-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:a15d964d9eb181c79c190d3dbc2fff7338786bf017e9039571418a1d53dab236"},
@@ -10973,4 +10947,4 @@ text-helpers = ["chardet"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8.1,<4.0"
-content-hash = "a36eb1f9d28e59ddc0cc5f3eee584ee4e054c8a87bf7c3c9a258b4a319aa1744"
+content-hash = "36c742f7330bc9670d998bdc3ec6bf4babd4fe4712191afc9fa12b2bd71ccbf9"

libs/langchain/pyproject.toml

@@ -114,7 +114,7 @@ cassio = {version = "^0.1.0", optional = true}
 rdflib = {version = "^6.3.2", optional = true}
 sympy = {version = "^1.12", optional = true}
 rapidfuzz = {version = "^3.1.1", optional = true}
-langsmith = "~0.0.43"
+langsmith = "~0.0.52"
 rank-bm25 = {version = "^0.2.2", optional = true}
 amadeus = {version = ">=8.1.0", optional = true}
 geopandas = {version = "^0.13.1", optional = true}

libs/langchain/tests/unit_tests/schema/runnable/test_runnable.py

@@ -2867,6 +2867,7 @@ def test_metadata_is_merged() -> None:
     with collect_runs() as cb:
         foo.invoke("hi", {"metadata": {"my_other_key": "my_other_value"}})
         run = cb.traced_runs[0]
+    assert run.extra is not None
     assert run.extra["metadata"] == expected_metadata
 
 
@@ -3526,6 +3527,7 @@ def test_seq_batch_return_exceptions(mocker: MockerFixture) -> None:
     parent_run_qux = parent_runs[3]
     assert parent_run_qux.inputs["input"] == "qux"
     assert parent_run_qux.error is None
+    assert parent_run_qux.outputs is not None
     assert parent_run_qux.outputs["output"] == "quxaaaa"
     assert len(parent_run_qux.child_runs) == 4
     assert [r.error for r in parent_run_qux.child_runs] == [None, None, None, None]
@@ -3648,6 +3650,7 @@ async def test_seq_abatch_return_exceptions(mocker: MockerFixture) -> None:
     parent_run_qux = parent_runs[3]
     assert parent_run_qux.inputs["input"] == "qux"
     assert parent_run_qux.error is None
+    assert parent_run_qux.outputs is not None
     assert parent_run_qux.outputs["output"] == "quxaaaa"
     assert len(parent_run_qux.child_runs) == 4
     assert [r.error for r in parent_run_qux.child_runs] == [None, None, None, None]

libs/langchain/tests/unit_tests/smith/evaluation/test_runner_utils.py

@@ -331,14 +331,17 @@ async def test_arun_on_dataset(monkeypatch: pytest.MonkeyPatch) -> None:
             project_name="test_project",
             client=client,
         )
-
         expected = {
             str(example.id): {
                 "output": {
                     "result": f"Result for example {uuid.UUID(str(example.id))}"
                 },
                 "input": {"input": example.inputs["input"]},
-                "reference": {"output": example.outputs["output"]},
+                "reference": {
+                    "output": example.outputs["output"]
+                    if example.outputs is not None
+                    else None
+                },
                 "feedback": [],
             }
             for example in examples

libs/langchain/tests/unit_tests/smith/evaluation/test_string_run_evaluator.py

@@ -23,5 +23,5 @@ def test_evaluate_run() -> None:
     run = MagicMock()
     example = MagicMock()
     res = evaluator.evaluate_run(run, example)
-    assert res.comment.startswith("Error evaluating run ")
+    assert str(res.comment).startswith("Error evaluating run ")
     assert res.key == string_evaluator.evaluation_name