perf: optimize extract_const_attributes traversal

appium/common/helper.py

@@ -27,7 +27,11 @@ def extract_const_attributes(cls: type) -> dict[str, Any]:
     Returns:
         dict with constants attributes and values in the class
     """
-    return {attr: value for attr, value in vars(cls).items() if not callable(getattr(cls, attr)) and attr.isupper()}
+    return {
+        attr: value
+        for attr, value in vars(cls).items()
+        if attr.isupper() and not callable(value) and not isinstance(value, classmethod)
+    }
 
 
 def library_version() -> str:

test/unit/common/helper_test.py

@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from appium.common.helper import extract_const_attributes
+
+
+class DummyConstants:
+    VAL1 = 100
+    VAL2 = 'test_value'
+    _PRIVATE = 'private_const'
+    lower_case = 'ignored'
+
+    @classmethod
+    def CLASS_METHOD(cls):
+        pass
+
+    @staticmethod
+    def STATIC_METHOD():
+        pass
+
+    def instance_method(self):
+        pass
+
+
+def test_extract_const_attributes():
+    constants = extract_const_attributes(DummyConstants)
+    assert constants == {
+        'VAL1': 100,
+        'VAL2': 'test_value',
+        '_PRIVATE': 'private_const',
+    }