diff --git a/studio/backend/utils/hardware/amd.py b/studio/backend/utils/hardware/amd.py
index f8e156e773..6bd8600be3 100644
--- a/studio/backend/utils/hardware/amd.py
+++ b/studio/backend/utils/hardware/amd.py
@@ -48,12 +48,14 @@ def _parse_numeric(value: Any) -> Optional[float]:
         return _parse_numeric(value.get("value"))
     if isinstance(value, (int, float)):
         import math
+
         f = float(value)
         return f if math.isfinite(f) else None
     if isinstance(value, str):
         # Strip units like "W", "C", "%", "MB", "MiB", "GB", "GiB" etc.
         import re
-        cleaned = re.sub(r'\s*[A-Za-z/%]+$', '', value.strip())
+
+        cleaned = re.sub(r"\s*[A-Za-z/%]+$", "", value.strip())
         if not cleaned or cleaned.lower() in ("n/a", "none", "unknown"):
             return None
         try:
@@ -219,14 +221,22 @@ def get_visible_gpu_utilization(
             "index_kind": "physical",
         }
 
-    gpu_list = data if isinstance(data, list) else data.get("gpus", data.get("gpu", [data]))
+    gpu_list = (
+        data if isinstance(data, list) else data.get("gpus", data.get("gpu", [data]))
+    )
     visible_set = set(parent_visible_ids)
     ordinal_map = {gpu_id: ordinal for ordinal, gpu_id in enumerate(parent_visible_ids)}
 
     devices = []
     for fallback_idx, gpu_data in enumerate(gpu_list):
         # Use AMD-reported GPU ID when available, fall back to enumeration index
-        raw_id = gpu_data.get("gpu", gpu_data.get("gpu_id", gpu_data.get("id", fallback_idx))) if isinstance(gpu_data, dict) else fallback_idx
+        raw_id = (
+            gpu_data.get(
+                "gpu", gpu_data.get("gpu_id", gpu_data.get("id", fallback_idx))
+            )
+            if isinstance(gpu_data, dict)
+            else fallback_idx
+        )
         try:
             idx = int(raw_id)
         except (TypeError, ValueError):
diff --git a/studio/install_python_stack.py b/studio/install_python_stack.py
index cba37886a2..ac0d70f726 100644
--- a/studio/install_python_stack.py
+++ b/studio/install_python_stack.py
@@ -117,10 +117,10 @@ def _has_usable_nvidia_gpu() -> bool:
     try:
         result = subprocess.run(
             [exe, "-L"],
-            stdout=subprocess.PIPE,
-            stderr=subprocess.DEVNULL,
-            text=True,
-            timeout=10,
+            stdout = subprocess.PIPE,
+            stderr = subprocess.DEVNULL,
+            text = True,
+            timeout = 10,
         )
     except Exception:
         return False
diff --git a/tests/studio/install/test_rocm_support.py b/tests/studio/install/test_rocm_support.py
index eaa1ce2986..597dd8a0d9 100644
--- a/tests/studio/install/test_rocm_support.py
+++ b/tests/studio/install/test_rocm_support.py
@@ -533,7 +533,9 @@ class TestEnsureRocmTorch:
     @patch.object(stack_mod, "_has_usable_nvidia_gpu", return_value = False)
     @patch.object(stack_mod, "_has_rocm_gpu", return_value = True)
     @patch.object(stack_mod, "_detect_rocm_version", return_value = (7, 1))
-    def test_torch_already_has_cuda_skips(self, mock_ver, mock_gpu, mock_nvidia, mock_pip):
+    def test_torch_already_has_cuda_skips(
+        self, mock_ver, mock_gpu, mock_nvidia, mock_pip
+    ):
         """If torch already has CUDA, should skip ROCm reinstall."""
         mock_probe = MagicMock()
         mock_probe.returncode = 0
@@ -547,7 +549,9 @@ class TestEnsureRocmTorch:
     @patch.object(stack_mod, "_has_usable_nvidia_gpu", return_value = False)
     @patch.object(stack_mod, "_has_rocm_gpu", return_value = True)
     @patch.object(stack_mod, "_detect_rocm_version", return_value = (7, 1))
-    def test_torch_already_has_hip_skips(self, mock_ver, mock_gpu, mock_nvidia, mock_pip):
+    def test_torch_already_has_hip_skips(
+        self, mock_ver, mock_gpu, mock_nvidia, mock_pip
+    ):
         """If torch already has HIP, should skip ROCm reinstall."""
         mock_probe = MagicMock()
         mock_probe.returncode = 0
@@ -561,7 +565,9 @@ class TestEnsureRocmTorch:
     @patch.object(stack_mod, "_has_usable_nvidia_gpu", return_value = False)
     @patch.object(stack_mod, "_has_rocm_gpu", return_value = True)
     @patch.object(stack_mod, "_detect_rocm_version", return_value = (7, 1))
-    def test_cpu_torch_gets_rocm_reinstall(self, mock_ver, mock_gpu, mock_nvidia, mock_pip):
+    def test_cpu_torch_gets_rocm_reinstall(
+        self, mock_ver, mock_gpu, mock_nvidia, mock_pip
+    ):
         """CPU-only torch on ROCm host should trigger reinstall."""
         mock_probe = MagicMock()
         mock_probe.returncode = 0
@@ -580,7 +586,9 @@ class TestEnsureRocmTorch:
     @patch.object(stack_mod, "_has_usable_nvidia_gpu", return_value = False)
     @patch.object(stack_mod, "_has_rocm_gpu", return_value = True)
     @patch.object(stack_mod, "_detect_rocm_version", return_value = (6, 3))
-    def test_rocm_63_selects_correct_tag(self, mock_ver, mock_gpu, mock_nvidia, mock_pip):
+    def test_rocm_63_selects_correct_tag(
+        self, mock_ver, mock_gpu, mock_nvidia, mock_pip
+    ):
         """ROCm 6.3 should select rocm6.3 tag."""
         mock_probe = MagicMock()
         mock_probe.returncode = 0
@@ -638,7 +646,9 @@ class TestEnsureRocmTorch:
     @patch.object(stack_mod, "_has_usable_nvidia_gpu", return_value = False)
     @patch.object(stack_mod, "_has_rocm_gpu", return_value = True)
     @patch.object(stack_mod, "_detect_rocm_version", return_value = (7, 1))
-    def test_probe_timeout_triggers_reinstall(self, mock_ver, mock_gpu, mock_nvidia, mock_pip):
+    def test_probe_timeout_triggers_reinstall(
+        self, mock_ver, mock_gpu, mock_nvidia, mock_pip
+    ):
         """Probe subprocess timeout should not crash; should proceed to reinstall."""
         with patch("os.path.isdir", return_value = True):
             with patch(