diff --git a/modules/nihonnooto/backend.py b/modules/nihonnooto/backend.py
index b384ec57..873ff709 100644
--- a/modules/nihonnooto/backend.py
+++ b/modules/nihonnooto/backend.py
@@ -16,7 +16,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with weboob. If not, see <http://www.gnu.org/licenses/>.
 
-from weboob.capabilities.radio import ICapRadio, Radio, Stream
+from weboob.capabilities.radio import ICapRadio, Radio
 from weboob.tools.backend import BaseBackend
 from .browser import NihonNoOtoBrowser
 
@@ -39,7 +39,7 @@ class NihonNoOtoBackend(BaseBackend, ICapRadio):
             if pattern.lower() in radio.title.lower() or pattern.lower() in radio.description.lower():
                 self.browser.get_current_emission()
                 radio.current = self.browser.get_current_emission()
- 
+
                 yield radio
 
     def get_radio(self, radio):
diff --git a/modules/nihonnooto/pages.py b/modules/nihonnooto/pages.py
index 3a319e60..869dcb9b 100644
--- a/modules/nihonnooto/pages.py
+++ b/modules/nihonnooto/pages.py
@@ -30,7 +30,7 @@ class LivePage(BasePage):
         radio.streams = []
 
         index = -1
-       
+
         for el in self.document.xpath('//source'):
             index += 1
             mime_type  = el.attrib['type']
diff --git a/modules/nihonnooto/test.py b/modules/nihonnooto/test.py
index 6a05201d..cce4f642 100644
--- a/modules/nihonnooto/test.py
+++ b/modules/nihonnooto/test.py
@@ -19,12 +19,11 @@
 
 
 from weboob.tools.test import BackendTest
-from weboob.capabilities.radio import Radio
 
 
 class NihonNoOtoTest(BackendTest):
     BACKEND = 'nihonnooto'
 
     def test_nihonnooto(self):
-        l = list(self.backend.iter_radios_search('')
+        l = list(self.backend.iter_radios_search(''))
         self.assertTrue(len(l) > 0)