diff --git a/cflib/localization/param_io.py b/cflib/localization/param_io.py
index 7c861675..7d337f46 100644
--- a/cflib/localization/param_io.py
+++ b/cflib/localization/param_io.py
@@ -19,11 +19,11 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
-
 import yaml
 
 from cflib.crazyflie.param import PersistentParamState
 
+
 class ParamFileManager():
     """Reads and writes parameter configurations from file"""
     TYPE_ID = 'type'
@@ -40,7 +40,8 @@ def write(file_name, params={}):
             for id, param in params.items():
                 assert isinstance(param, PersistentParamState)
                 if isinstance(param, PersistentParamState):
-                    file_params[id] = {'is_stored': param.is_stored, 'default_value': param.default_value, 'stored_value': param.stored_value}
+                    file_params[id] = {'is_stored': param.is_stored,
+                                       'default_value': param.default_value, 'stored_value': param.stored_value}
 
             data = {
                 ParamFileManager.TYPE_ID: ParamFileManager.TYPE,
@@ -49,7 +50,7 @@ def write(file_name, params={}):
             }
 
             yaml.dump(data, file)
-    
+
     @staticmethod
     def read(file_name):
         file = open(file_name, 'r')
@@ -71,13 +72,14 @@ def read(file_name):
 
             if data[ParamFileManager.VERSION_ID] != ParamFileManager.VERSION:
                 raise Exception('Unsupported file version')
-            
+
             def get_data(input_data):
                 persistent_params = {}
                 for id, param in input_data.items():
-                    persistent_params[id] = PersistentParamState(param['is_stored'], param['default_value'], param['stored_value'])
+                    persistent_params[id] = PersistentParamState(
+                        param['is_stored'], param['default_value'], param['stored_value'])
                 return persistent_params
-            
+
             if ParamFileManager.PARAMS_ID in data:
                 return get_data(data[ParamFileManager.PARAMS_ID])
             else:
diff --git a/test/localization/test_param_io.py b/test/localization/test_param_io.py
index 4a8f3826..1154e8a8 100644
--- a/test/localization/test_param_io.py
+++ b/test/localization/test_param_io.py
@@ -19,7 +19,6 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
-
 import unittest
 from unittest.mock import ANY
 from unittest.mock import mock_open
@@ -29,6 +28,7 @@
 
 from cflib.localization import ParamFileManager
 
+
 class TestParamFileManager(unittest.TestCase):
     def setUp(self):
         self.data = {
@@ -48,7 +48,7 @@ def test_that_read_open_correct_file(self, mock_yaml_load):
 
         # Assert
         mock_file.assert_called_with(file_name, 'r')
-        
+
     @patch('yaml.safe_load')
     def test_that_missing_file_type_raises(self, mock_yaml_load):
         # Fixture
@@ -85,7 +85,7 @@ def test_that_missing_version_raises(self, mock_yaml_load):
         with self.assertRaises(Exception):
             with patch('builtins.open', new_callable=mock_open()):
                 ParamFileManager.read('some/name.yaml')
-    
+
     @patch('yaml.safe_load')
     def test_that_wrong_version_raises(self, mock_yaml_load):
         # Fixture
@@ -106,10 +106,10 @@ def test_that_no_data_returns_empty_default_data(self, mock_yaml_load):
         # Test
         with patch('builtins.open', new_callable=mock_open()):
             actual_params = ParamFileManager.read('some/name.yaml')
-        
+
         # Assert
         self.assertEqual(0, len(actual_params))
-    
+
     @patch('yaml.dump')
     def test_file_end_to_end_write_read(self, mock_yaml_dump):
         # Fixture
@@ -126,7 +126,7 @@ def test_file_end_to_end_write_read(self, mock_yaml_dump):
 
             # Assert
             mock_yaml_dump.assert_called_with(expected, ANY)
-    
+
     @patch('yaml.dump')
     def test_file_write_to_correct_file(self, mock_yaml_dump):
         # Fixture