Empty or invalid input string. #281
Description
Using local ollama qwen3:4b The code show :extraction_data = self.format_handler.parse_output(parse_output
raise exceptions.FormatParseError("Empty or invalid input string."),but gemma3 is ok.
`
prompt = textwrap.dedent("""
Extract characters, emotions, and relationships in order of appearance.
Use exact text for extractions. Do not paraphrase or overlap entities.
Provide meaningful attributes for each entity to add context.""")
examples = [
lx.data.ExampleData(
text="ROMEO. But soft! What light through yonder window breaks? It is the east, and Juliet is the sun.",
extractions=[
lx.data.Extraction(
extraction_class="character",
extraction_text="ROMEO",
attributes={"emotional_state": "wonder"}
),
lx.data.Extraction(
extraction_class="emotion",
extraction_text="But soft!",
attributes={"feeling": "gentle awe"}
),
lx.data.Extraction(
extraction_class="relationship",
extraction_text="Juliet is the sun",
attributes={"type": "metaphor"}
),
]
)
]
input_text = "Lady Juliet gazed longingly at the stars, her heart aching for Romeo"
model_config = lx.factory.ModelConfig(
model_id="qwen3:4b",
provider_kwargs={
"model_url": os.getenv("OLLAMA_HOST", "http://localhost:11434"),
"format_type": lx.data.FormatType.JSON,
"temperature": 0.1,
"timeout": 400,
"max_tokens": 1024
},
)
result = lx.extract(
text_or_documents=input_text,
prompt_description=prompt,
examples=examples,
config=model_config,
fence_output=True,
use_schema_constraints=False
)
print(result.extractions) `