diff --git a/src/rougail/annotator/__init__.py b/src/rougail/annotator/__init__.py
index c6bac2173..41a08860c 100644
--- a/src/rougail/annotator/__init__.py
+++ b/src/rougail/annotator/__init__.py
@@ -9,7 +9,7 @@ from .fill import FillAnnotator
 from .family import FamilyAnnotator, modes
 from .property import PropertyAnnotator
 
-class SpaceAnnotator:
+class SpaceAnnotator:  # pylint: disable=R0903
     """Transformations applied on a CreoleObjSpace instance
     """
     def __init__(self, objectspace, eosfunc_file):
diff --git a/src/rougail/annotator/check.py b/src/rougail/annotator/check.py
index 8ec0d6dde..e12d9dfdd 100644
--- a/src/rougail/annotator/check.py
+++ b/src/rougail/annotator/check.py
@@ -28,7 +28,7 @@ class CheckAnnotator:
         self.check_change_warning()
         self.convert_check()
 
-    def check_check(self):
+    def check_check(self):  # pylint: disable=R0912
         """valid and manage <check>
         """
         remove_indexes = []
@@ -46,7 +46,7 @@ class CheckAnnotator:
                     xmlfiles = self.objectspace.display_xmlfiles(check.xmlfiles)
                     msg = _(f'the target "{check.target}" in check cannot be a dynamic '
                             f'variable in {xmlfiles}')
-                    raise DictConsistencyError(msg, 22)
+                    raise DictConsistencyError(msg, 22) from err
                 raise err
             check.is_in_leadership = self.objectspace.paths.is_in_leadership(check_name)
             if not hasattr(check, 'param'):
diff --git a/src/rougail/annotator/condition.py b/src/rougail/annotator/condition.py
index 261b3920a..85d328bdf 100644
--- a/src/rougail/annotator/condition.py
+++ b/src/rougail/annotator/condition.py
@@ -103,7 +103,7 @@ class Conditionnnotator:
                     if not target.optional:
                         xmlfiles = self.objectspace.display_xmlfiles(condition.xmlfiles)
                         msg = f'cannot found target "{target.name}" in the condition in {xmlfiles}'
-                        raise DictConsistencyError(_(msg), 12)
+                        raise DictConsistencyError(_(msg), 12) from err
                     remove_targets.append(index)
             remove_targets.sort(reverse=True)
             for index in remove_targets:
@@ -209,7 +209,7 @@ class Conditionnnotator:
                     xmlfiles = self.objectspace.display_xmlfiles(condition.xmlfiles)
                     msg = _(f'the source "{condition.source}" in condition cannot be a dynamic '
                             f'variable in {xmlfiles}')
-                    raise DictConsistencyError(msg, 20)
+                    raise DictConsistencyError(msg, 20) from err
 
     def check_choice_option_condition(self):
         """remove condition for ChoiceOption that don't have param
diff --git a/src/rougail/annotator/family.py b/src/rougail/annotator/family.py
index d60cb9504..0ca3c31d1 100644
--- a/src/rougail/annotator/family.py
+++ b/src/rougail/annotator/family.py
@@ -8,7 +8,7 @@ from ..error import DictConsistencyError
 modes_level = ('basic', 'normal', 'expert')
 
 
-class Mode:
+class Mode:  # pylint: disable=R0903
     """Class to manage mode level
     """
     def __init__(self,
diff --git a/src/rougail/annotator/service.py b/src/rougail/annotator/service.py
index 04b2e06a9..2ebe9a15c 100644
--- a/src/rougail/annotator/service.py
+++ b/src/rougail/annotator/service.py
@@ -177,7 +177,7 @@ class ServiceAnnotator:
                           value,
                           xmlfiles,
                           path,
-                          ):
+                          ):  # pylint: disable=R0913
         variable = self.objectspace.variable(xmlfiles)
         variable.name = normalize_family(key)
         variable.mode = None
diff --git a/src/rougail/annotator/variable.py b/src/rougail/annotator/variable.py
index bd23ec6d4..21e317d05 100644
--- a/src/rougail/annotator/variable.py
+++ b/src/rougail/annotator/variable.py
@@ -1,7 +1,6 @@
 """Annotate variable
 """
 from ..utils import normalize_family
-from ..config import Config
 
 
 CONVERT_OPTION = {'number': dict(opttype="IntOption", func=int),
@@ -44,7 +43,7 @@ FORCE_CHOICE = {'schedule': ['none', 'daily', 'weekly', 'monthly'],
 RENAME_ATTIBUTES = {'description': 'doc'}
 
 
-class VariableAnnotator:
+class VariableAnnotator:  # pylint: disable=R0903
     """Annotate variable
     """
     def __init__(self,
diff --git a/src/rougail/objspace.py b/src/rougail/objspace.py
index 6f1b38e0e..3673c991b 100644
--- a/src/rougail/objspace.py
+++ b/src/rougail/objspace.py
@@ -149,7 +149,7 @@ class RougailObjSpace:
                         redefine_variables,
                         )
 
-    def _xml_parse(self,
+    def _xml_parse(self,  # pylint: disable=R0913
                    xmlfile,
                    document,
                    space,
@@ -211,7 +211,7 @@ class RougailObjSpace:
                         space,
                         namespace,
                         redefine_variables,
-                        ):
+                        ):  # pylint: disable=R0913
         """
         retrieves or creates Rougail Object Subspace objects
         """
@@ -256,7 +256,7 @@ class RougailObjSpace:
                                             name,
                                             namespace,
                                             redefine_variables,
-                                            ):
+                                            ):  # pylint: disable=R0913
         """A redefinable object could be created or updated
         """
         existed_var = self.get_existed_obj(name,
diff --git a/src/rougail/path.py b/src/rougail/path.py
index 641be0c9a..d3e8fe501 100644
--- a/src/rougail/path.py
+++ b/src/rougail/path.py
@@ -110,7 +110,7 @@ class Path:
         return leadership.variable[0].path == path
 
     # Variable
-    def add_variable(self,
+    def add_variable(self,  # pylint: disable=R0913
                      namespace: str,
                      name: str,
                      family: str,
diff --git a/src/rougail/template.py b/src/rougail/template.py
index 3238ac3f9..03b6ffc83 100644
--- a/src/rougail/template.py
+++ b/src/rougail/template.py
@@ -44,12 +44,12 @@ def cl_compile(kls, *args, **kwargs):
                                   'commentEndToken' : 'µ' * 10,
                                   'multiLineCommentStartToken' : 'µ' * 10,
                                   'multiLineCommentEndToken' : 'µ' * 10}
-    return kls.old_compile(*args, **kwargs)
+    return kls.old_compile(*args, **kwargs)  # pylint: disable=E1101
 ChtTemplate.old_compile = ChtTemplate.compile
 ChtTemplate.compile = cl_compile
 
 
-class CheetahTemplate(ChtTemplate):
+class CheetahTemplate(ChtTemplate):  # pylint: disable=W0223
     """Construct a cheetah templating object
     """
     def __init__(self,
@@ -200,7 +200,7 @@ class CreoleExtra:
 class CreoleTemplateEngine:
     """Engine to process Creole cheetah template
     """
-    def __init__(self,
+    def __init__(self,  # pylint: disable=R0913
                  config: Config,
                  eosfunc_file: str,
                  distrib_dir: str,
@@ -278,10 +278,10 @@ class CreoleTemplateEngine:
         except CheetahNotFound as err:  # pragma: no cover
             varname = err.args[0][13:-1]
             msg = f"Error: unknown variable used in template {source} to {destfilename}: {varname}"
-            raise TemplateError(_(msg))
+            raise TemplateError(_(msg)) from err
         except Exception as err:  # pragma: no cover
             msg = _(f"Error while instantiating template {source} to {destfilename}: {err}")
-            raise TemplateError(msg)
+            raise TemplateError(msg) from err
 
         with open(destfilename, 'w') as file_h:
             file_h.write(data)
diff --git a/src/rougail/tiramisureflector.py b/src/rougail/tiramisureflector.py
index 85fa2bd49..0b9962e09 100644
--- a/src/rougail/tiramisureflector.py
+++ b/src/rougail/tiramisureflector.py
@@ -11,7 +11,7 @@ FORCE_INFORMATIONS = ['help', 'test', 'manage']
 ATTRIBUTES_ORDER = ('name', 'doc', 'default', 'multi')
 
 
-class Root():
+class Root():  # pylint: disable=R0903
     """Root classes
     """
     path = '.'
@@ -57,7 +57,7 @@ class TiramisuReflector:
                              elt,
                              )
         # parse object
-        baseelt.reflector_object.get()
+        baseelt.reflector_object.get()  # pylint: disable=E1101
 
     @staticmethod
     def reorder_family(space):
@@ -162,7 +162,7 @@ class TiramisuReflector:
         return '\n'.join(self.text)
 
 
-class BaseElt:
+class BaseElt:  # pylint: disable=R0903
     """Base element
     """
     name = 'baseoption'
diff --git a/src/rougail/xmlreflector.py b/src/rougail/xmlreflector.py
index 0e366a7d3..db38dc10a 100644
--- a/src/rougail/xmlreflector.py
+++ b/src/rougail/xmlreflector.py
@@ -38,7 +38,7 @@ class XMLReflector:
         try:
             document = parse(xmlfile)
         except XMLSyntaxError as err:
-            raise DictConsistencyError(_(f'{xmlfile} is not an XML file: {err}'), 52)
+            raise DictConsistencyError(_(f'{xmlfile} is not an XML file: {err}'), 52) from err
         if not self.dtd.validate(document):
             dtd_error = self.dtd.error_log.filter_from_errors()[0]
             msg = _(f'"{xmlfile}" not a valid XML file: {dtd_error}')