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hassiebp merged 1 commit into from
Nov 20, 2025
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docs(experiments): evaluation value cannot be None #1446

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3 changes: 1 addition & 2 deletions langfuse/experiment.py
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Original file line number Diff line number Diff line change
Expand Up @@ -107,7 +107,6 @@ class Evaluation:
- Numeric (int/float): For quantitative metrics like accuracy (0.85), BLEU (0.42)
- String: For categorical results like "positive", "negative", "neutral"
- Boolean: For binary assessments like "passes_safety_check"
- None: When evaluation cannot be computed (missing data, API errors, etc.)
comment: Optional human-readable explanation of the evaluation result.
Useful for providing context, explaining scoring rationale, or noting
special conditions. Displayed in Langfuse UI for interpretability.
Expand Down Expand Up @@ -186,7 +185,7 @@ def __init__(
self,
*,
name: str,
value: Union[int, float, str, bool, None],
value: Union[int, float, str, bool],
comment: Optional[str] = None,
metadata: Optional[Dict[str, Any]] = None,
data_type: Optional[ScoreDataType] = None,
Expand Down
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