Set default input/output in Langfuse integration #3563
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
We hit a scenario in our production system when getting a Prompt from the langfuse API where the Prompt didn't exist:
langfuse.api.resources.commons.errors.not_found_error.NotFoundError: status_code: 404, body: {'message': "No production-labeled prompt found with name <prompt_name_redacted> in project <project_id_redacted>, 'error': 'LangfuseNotFoundError'}
which then caused
UnboundLocalError: cannot access local variable 'output' where it is not associated with a value print_verbose(f"OUTPUT IN LANGFUSE: {output}; original: {response_obj}") File "/app/.venv/lib/python3.12/site-packages/litellm/integrations/langfuse.py", line 149, in log_event
This PR at least attempts to set a sensible default so that an error like this cannot happen.