> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fiddler.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# SkipEval

> Exception raised when an evaluation should be skipped.

Raise it from an [`EvalFn`](https://docs.fiddler.ai/sdk-api/evals/eval-fn) scoring
function to record a SKIPPED score instead of a FAILED one; the score's
`reasoning` includes the message.

## Example

```python theme={null}
from fiddler_evals import EvalFn
from fiddler_evals.exceptions import SkipEval

def exact_match(output: str, expected_output: str | None) -> float:
    if expected_output is None:
        raise SkipEval("No expected output for this item")
    return float(output == expected_output)

evaluator = EvalFn(exact_match)
```