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python/langsmith/run_helpers.py

@@ -145,6 +145,11 @@ def _container_end(
  outputs_ = outputs if isinstance(outputs, dict) else {"output": outputs}
  run_tree.end(outputs=outputs_, error=error)
  run_tree.patch()
+ if error:
+ try:
+ logger.info(f"See trace: {run_tree.get_url()}")
+ except Exception:
+ pass
 
 
 def _collect_extra(extra_outer: dict, langsmith_extra: LangSmithExtra) -> dict:

python/langsmith/run_trees.py

@@ -241,3 +241,7 @@ def patch(self) -> None:
  def wait(self) -> None:
  """Wait for all _futures to complete."""
  pass
+
+ def get_url(self) -> str:
+ """Return the URL of the run."""
+ return self.client.get_run_url(run=self)