make linter happy

Author: leofang

cuda_core/tests/memory_ipc/test_leaks.py

@@ -14,13 +14,10 @@
     HAVE_PSUTIL = True
 import pytest
 
-from cuda.core.experimental._utils.cuda_utils import driver
-
-
 CHILD_TIMEOUT_SEC = 20
 NBYTES = 64
 
-USING_FDS = True if platform.system() == "Linux" else False
+USING_FDS = platform.system() == "Linux"
 skip_if_unrunnable = pytest.mark.skipif(
     not USING_FDS or not HAVE_PSUTIL, reason="mempool allocation handle is not using fds or psutil is unavailable"
 )

cuda_core/tests/test_memory.py

@@ -426,7 +426,6 @@ def test_mempool_attributes_ownership(mempool_device):
     device = mempool_device
     mr = DeviceMemoryResource(device, dict(max_size=POOL_SIZE))
     attributes = mr.attributes
-    old_handle = mr.handle
     mr.close()
     del mr
 
@@ -436,7 +435,7 @@ def test_mempool_attributes_ownership(mempool_device):
 
     # Even when a new object is created (we found a case where the same
     # mempool handle was really reused).
-    mr = DeviceMemoryResource(device, dict(max_size=POOL_SIZE))
+    mr = DeviceMemoryResource(device, dict(max_size=POOL_SIZE))  # noqa: F841
     with pytest.raises(RuntimeError, match="DeviceMemoryResource is expired"):
         _ = attributes.used_mem_high