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Fix: Check the type of params to be a Sequence not list. #19910

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merged 1 commit into from
Jun 20, 2025
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Fix: Check the type of params to be a Sequence not list. #19910

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6 changes: 3 additions & 3 deletions vllm/entrypoints/llm.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1450,15 +1450,15 @@ def _validate_and_add_requests(
prompts = [prompts]

num_requests = len(prompts)
if isinstance(params, list) and len(params) != num_requests:
if isinstance(params, Sequence) and len(params) != num_requests:
raise ValueError("The lengths of prompts and params "
"must be the same.")
if isinstance(lora_request,
list) and len(lora_request) != num_requests:
Sequence) and len(lora_request) != num_requests:
raise ValueError("The lengths of prompts and lora_request "
"must be the same.")

for sp in params if isinstance(params, list) else (params, ):
for sp in params if isinstance(params, Sequence) else (params, ):
if isinstance(sp, SamplingParams):
self._add_guided_params(sp, guided_options)

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