diff --git a/studio/backend/core/training/diffusion_train_common.py b/studio/backend/core/training/diffusion_train_common.py
index 226bcaa5ff..2239174690 100644
--- a/studio/backend/core/training/diffusion_train_common.py
+++ b/studio/backend/core/training/diffusion_train_common.py
@@ -369,6 +369,7 @@ def dit_accelerator_missing_reason(resolved_family: str) -> Optional[str]:
         return None
     try:
         import torch
+
         xpu = getattr(torch, "xpu", None)
         mps = getattr(torch, "mps", None)
         if (
diff --git a/studio/backend/routes/inference.py b/studio/backend/routes/inference.py
index e23eeda7ac..3d76543ee1 100644
--- a/studio/backend/routes/inference.py
+++ b/studio/backend/routes/inference.py
@@ -4614,9 +4614,11 @@ async def _load_model_impl(
         # requirement exactly as it does for the load.
         if config.is_gguf and config.gguf_hf_repo:
             from core.inference.llama_cpp import gguf_load_in_flight
+
             gguf_load_stack.enter_context(gguf_load_in_flight(config.gguf_hf_repo))
 
             from core.inference.llama_cpp import _hub_download_blocks_gguf_load
+
             if await asyncio.to_thread(
                 _hub_download_blocks_gguf_load,
                 config.gguf_hf_repo,
diff --git a/studio/backend/tests/test_diffusion_base_precision.py b/studio/backend/tests/test_diffusion_base_precision.py
index 5316c79217..52a1318876 100644
--- a/studio/backend/tests/test_diffusion_base_precision.py
+++ b/studio/backend/tests/test_diffusion_base_precision.py
@@ -621,6 +621,7 @@ def test_assert_trusted_base_model_rejects_local_non_pipeline(tmp_path):
     with pytest.raises(ValueError, match = "untrusted"):
         common._assert_trusted_base_model("evil/base")
 
+
 def test_dit_accelerator_missing_reason_and_info_hide_train_without_a_gpu(monkeypatch):
     # Clicking Start on a GPU-less host evicted the resident Images pipeline, downloaded the text
     # encoders, and only then died in the child: diffusers' bitsandbytes quantizer refuses 4-bit
diff --git a/studio/backend/tests/test_gpu_selection.py b/studio/backend/tests/test_gpu_selection.py
index d453c8f220..b2eed1e19a 100644
--- a/studio/backend/tests/test_gpu_selection.py
+++ b/studio/backend/tests/test_gpu_selection.py
@@ -1151,9 +1151,7 @@ class TestRouteErrors(unittest.TestCase):
             patch.object(inference_route.asyncio, "to_thread", new = _inline_to_thread),
             patch.object(inference_route, "_hf_offline_if_dns_dead", nullcontext),
             # The chat handoff passes a `register` hook (the in-flight marker), so accept it.
-            patch.object(
-                arb, "acquire_for", lambda owner, register = None: acquired.append(owner)
-            ),
+            patch.object(arb, "acquire_for", lambda owner, register = None: acquired.append(owner)),
         ):
             with self.assertRaises(HTTPException) as exc_info:
                 asyncio.run(