Fix examples and pytest, run ruff (#3230)

Co-authored-by: dePaul Miller <23461061+depaulmillz@users.noreply.github.com>

test/examples/CuTeDSL/conftest.py

@@ -39,6 +39,8 @@ import numpy as np
 
 
 project_root = Path(__file__).resolve().parent.parent.parent.parent
+
+cute_example_path = project_root / "examples" / "python" / "CuTeDSL" / "cute"
 example_path = project_root / "examples" / "python" / "CuTeDSL"
 utils_path = project_root / "test" / "utils"
 
@@ -50,9 +52,11 @@ utils_path = project_root / "test" / "utils"
 # Importing cutlass here, while sys.path is still clean, avoids that race.
 import cutlass  # noqa: E402  (intentional early import)
 
+sys.path.append(str(cute_example_path))
 sys.path.append(str(example_path))
 sys.path.append(str(utils_path))
 
+
 # The helper class to prevent modification of sys.path from test files
 # Only allow modification of sys.path from pytest monkeypatch API calls
 class ImmutableSysPath(list):
@@ -70,6 +74,7 @@ class ImmutableSysPath(list):
     }
 
     for mtd in mutating_methods:
+
         def mutating_method(self, *args, mtd=mtd, **kwargs):
             frame = sys._getframe().f_back
             if (
@@ -98,6 +103,7 @@ sys.path = ImmutableSysPath(list(sys.path))
 
 pytest_plugins = ["test_sharding"]
 
+
 def pytest_addoption(parser):
     parser.addoption(
         "--sample-interval",