[Refactor] Fix ruff rule E714: Test for object identity should be is not

pyproject.toml

@@ -46,7 +46,6 @@ ignore = [
     "C419",
     # Below are auto-fixable rules
     "I001",
-    "E714",
 ]
 
 [tool.ruff.lint.flake8-quotes]

python/ray/tests/test_component_failures_2.py

@@ -63,7 +63,7 @@ def g(*xs):
         time.sleep(1)
         process.kill()
         process.wait()
-        assert not process.poll() is None
+        assert process.poll() is not None
 
         # Make sure that we can still get the objects after the
         # executing tasks died.
@@ -95,7 +95,7 @@ def check_components_alive(cluster, component_type, check_component_alive):
                 + str(process.pid)
                 + "to terminate"
             )
-            assert not process.poll() is None
+            assert process.poll() is not None
 
 
 @pytest.mark.parametrize(

python/ray/tests/test_multinode_failures.py

@@ -122,7 +122,7 @@ def g(*xs):
         time.sleep(1)
         process.kill()
         process.wait()
-        assert not process.poll() is None
+        assert process.poll() is not None
 
         # Make sure that we can still get the objects after the
         # executing tasks died.
@@ -154,7 +154,7 @@ def check_components_alive(cluster, component_type, check_component_alive):
                 + str(process.pid)
                 + "to terminate"
             )
-            assert not process.poll() is None
+            assert process.poll() is not None
 
 
 @pytest.mark.parametrize(

python/ray/tests/test_multinode_failures_2.py

@@ -63,7 +63,7 @@ def g(x):
         time.sleep(1)
         process.kill()
         process.wait()
-        assert not process.poll() is None
+        assert process.poll() is not None
 
         # Make sure that we can still get the objects after the
         # executing tasks died.

release/ray_release/config.py

@@ -203,7 +203,7 @@ def validate_aws_config(aws_config: Dict[str, Any]) -> Optional[str]:
         if not ebs:
             continue
 
-        if not ebs.get("DeleteOnTermination", False) is True:
+        if ebs.get("DeleteOnTermination", False) is not True:
             return "Ebs volume does not have `DeleteOnTermination: true` set"
     return None
 

rllib/utils/deprecation.py

@@ -40,7 +40,7 @@ def deprecation_warning(
     )
 
     if error:
-        if not type(error) is bool and issubclass(error, Exception):
+        if not isinstance(error, bool) and issubclass(error, Exception):
             # error is an Exception
             raise error(msg)
         else: