diff --git a/tests/v1/engine/conftest.py b/tests/v1/engine/conftest.py
index c5c5d35b83c3e..283a76dab6723 100644
--- a/tests/v1/engine/conftest.py
+++ b/tests/v1/engine/conftest.py
@@ -6,6 +6,7 @@ import torch
 from transformers import AutoTokenizer
 
 from tests.v1.engine.utils import (
+    FULL_STRINGS,
     NUM_PROMPT_LOGPROBS_UNDER_TEST,
     NUM_SAMPLE_LOGPROBS_UNDER_TEST,
     PROMPT_LEN,
@@ -18,8 +19,6 @@ from vllm.engine.arg_utils import EngineArgs
 
 from ...distributed.conftest import publisher_config, random_port  # noqa: F401
 
-from tests.v1.engine.utils import FULL_STRINGS  # isort: skip
-
 EngineCoreSampleLogprobsType = list[tuple[torch.Tensor, torch.Tensor]]
 EngineCorePromptLogprobsType = tuple[torch.Tensor, torch.Tensor]
 
diff --git a/tests/v1/tpu/test_topk_topp_sampler.py b/tests/v1/tpu/test_topk_topp_sampler.py
index c2fc24442c7cd..c6634395bb167 100644
--- a/tests/v1/tpu/test_topk_topp_sampler.py
+++ b/tests/v1/tpu/test_topk_topp_sampler.py
@@ -8,10 +8,7 @@ import torch_xla
 
 from vllm.platforms import current_platform
 from vllm.v1.sample.ops.topk_topp_sampler import apply_top_k_top_p
-
-# isort: off
 from vllm.v1.sample.tpu.sampler import apply_top_k_top_p as apply_top_k_top_p_tpu
-# isort: on
 
 if not current_platform.is_tpu():
     pytest.skip("This test needs a TPU.", allow_module_level=True)
diff --git a/vllm/model_executor/layers/quantization/compressed_tensors/schemes/__init__.py b/vllm/model_executor/layers/quantization/compressed_tensors/schemes/__init__.py
index fc0634394ece3..ca286675ebd0c 100644
--- a/vllm/model_executor/layers/quantization/compressed_tensors/schemes/__init__.py
+++ b/vllm/model_executor/layers/quantization/compressed_tensors/schemes/__init__.py
@@ -15,6 +15,7 @@ from .compressed_tensors_w8a8_int8 import CompressedTensorsW8A8Int8
 from .compressed_tensors_w8a16_fp8 import CompressedTensorsW8A16Fp8
 from .compressed_tensors_wNa16 import WNA16_SUPPORTED_BITS, CompressedTensorsWNA16
 
+# This avoids circular import error
 from .compressed_tensors_24 import CompressedTensors24  # isort: skip
 
 __all__ = [
diff --git a/vllm/model_executor/models/qwen3_omni_moe_thinker.py b/vllm/model_executor/models/qwen3_omni_moe_thinker.py
index d5a75e75aa43e..08bccee9e2d1a 100755
--- a/vllm/model_executor/models/qwen3_omni_moe_thinker.py
+++ b/vllm/model_executor/models/qwen3_omni_moe_thinker.py
@@ -80,17 +80,12 @@ from .interfaces import (
     SupportsMultiModal,
     SupportsPP,
 )
-
-# yapf conflicts with isort for this block
-# yapf: disable
 from .qwen2_5_omni_thinker import (
     Qwen2_5OmniConditionalGenerationMixin,
     Qwen2_5OmniThinkerDummyInputsBuilder,
     Qwen2_5OmniThinkerMultiModalProcessor,
     Qwen2_5OmniThinkerProcessingInfo,
 )
-
-# yapf: enable
 from .qwen2_5_vl import (
     Qwen2_5_VisionAttention,
     Qwen2_5_VisionRotaryEmbedding,