Make dependencies() a @staticmethod instead of a @property

tracetools_analysis/tracetools_analysis/processor/__init__.py

@@ -106,8 +106,8 @@ class EventHandler():
         """Get the handler functions map."""
         return self._handler_map
 
-    @property
-    def dependencies(self) -> List[Type['EventHandler']]:
+    @staticmethod
+    def dependencies() -> List[Type['EventHandler']]:
         """
         Get the `EventHandler`s that should also exist along with this current one.
 

tracetools_analysis/tracetools_analysis/processor/profile.py

@@ -18,12 +18,14 @@ from collections import defaultdict
 from typing import Dict
 from typing import List
 from typing import Tuple
+from typing import Type
 from typing import Union
 
 from tracetools_read.utils import get_field
 
 from . import EventHandler
 from . import EventMetadata
+from .cpu_time import CpuTimeHandler
 
 from ..data_model.profile import ProfileDataModel
 
@@ -79,6 +81,10 @@ class ProfileHandler(EventHandler):
             int('0x7F6CD678D0F8', 16): 'collect_entities',
         }
 
+    @staticmethod
+    def dependencies() -> List[Type[EventHandler]]:
+        return [CpuTimeHandler]
+
     def get_data_model(self) -> ProfileDataModel:
         return self._data