diff --git a/src/rougail/annotator/__init__.py b/src/rougail/annotator/__init__.py
index 91ede8a38..ef02d3fd5 100644
--- a/src/rougail/annotator/__init__.py
+++ b/src/rougail/annotator/__init__.py
@@ -1,7 +1,7 @@
 """Annotate dictionaries
 """
 from .group import GroupAnnotator
-from .service import ServiceAnnotator, ERASED_ATTRIBUTES
+from .service import ServiceAnnotator
 from .variable import VariableAnnotator, CONVERT_OPTION
 from .check import CheckAnnotator
 from .value import ValueAnnotator
@@ -30,4 +30,4 @@ class SpaceAnnotator:  # pylint: disable=R0903
         ValueAnnotator(objectspace)
 
 
-__all__ = ('SpaceAnnotator', 'ERASED_ATTRIBUTES', 'CONVERT_OPTION', 'modes')
+__all__ = ('SpaceAnnotator', 'CONVERT_OPTION', 'modes')
diff --git a/src/rougail/annotator/family.py b/src/rougail/annotator/family.py
index 0bde0cbd4..d9e450094 100644
--- a/src/rougail/annotator/family.py
+++ b/src/rougail/annotator/family.py
@@ -46,6 +46,8 @@ class FamilyAnnotator:
         self.convert_help()
 
     def family_names(self) -> None:
+        """Set doc, path, ... to family
+        """
         for families in self.objectspace.space.variables.values():
             families.doc = families.name
             families.path = families.name
diff --git a/src/rougail/annotator/value.py b/src/rougail/annotator/value.py
index 761ec55a5..06b414a36 100644
--- a/src/rougail/annotator/value.py
+++ b/src/rougail/annotator/value.py
@@ -1,5 +1,8 @@
-class ValueAnnotator:
-    """Annotate check
+"""Annotate value
+"""
+
+class ValueAnnotator:  # pylint: disable=R0903
+    """Annotate value
     """
     def __init__(self,
                  objectspace,
@@ -10,6 +13,8 @@ class ValueAnnotator:
         self.convert_value()
 
     def convert_value(self) -> None:
+        """convert value
+        """
         for families in self.objectspace.space.variables.values():
             for family in families.family.values():
                 for variable in family.variable.values():
@@ -23,8 +28,8 @@ class ValueAnnotator:
                     else:
                         self._convert_value(variable)
 
-    def _convert_value(self,
-                       variable,
+    @staticmethod
+    def _convert_value(variable,
                        variable_type: str=None,
                        ) -> None:
         if not hasattr(variable, 'value'):
diff --git a/src/rougail/tiramisureflector.py b/src/rougail/tiramisureflector.py
index 11981b532..22b4a11c1 100644
--- a/src/rougail/tiramisureflector.py
+++ b/src/rougail/tiramisureflector.py
@@ -2,12 +2,14 @@
 flattened XML specific
 """
 from .config import Config
-from .annotator import ERASED_ATTRIBUTES, CONVERT_OPTION
+from .annotator import CONVERT_OPTION
 from .objspace import RootRougailObject
 
 
 FUNC_TO_DICT = []
-ATTRIBUTES_ORDER = ('name', 'doc', 'default', 'values', 'multi', 'default_multi', 'properties', 'validators', 'min_number', 'max_number')
+ATTRIBUTES_ORDER = ('name', 'doc', 'default', 'values', 'multi', 'default_multi', 'properties',
+                    'validators', 'min_number', 'max_number',
+                    )
 
 
 class Root():  # pylint: disable=R0903
@@ -159,7 +161,8 @@ class Common:
         self.text = text
         self.elt.reflector_object = self
 
-    def populate_properties(self, child):
+    @staticmethod
+    def populate_properties(child) -> str:
         """Populate properties
         """
         assert child.type == 'calculation'
@@ -193,7 +196,8 @@ class Common:
             if key == 'properties':
                 value = self.properties_to_string()
             elif key == 'validators':
-                value = '[' + ', '.join([self.calculation_value(val, ['ParamSelfOption()']) for val in value]) + ']'
+                value = '[' + ', '.join([self.calculation_value(val, ['ParamSelfOption()']) \
+                        for val in value]) + ']'
             elif key == 'values':
                 if value[0].type == 'calculation':
                     value = value[0].name.reflector_object.get()