diff --git a/base_partner_merge/hooks.py b/base_partner_merge/hooks.py
index be65d9b0b..6151a2255 100644
--- a/base_partner_merge/hooks.py
+++ b/base_partner_merge/hooks.py
@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
 # © 2017 Therp BV <http://therp.nl>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
-import sys
 import inspect
 from openerp.models import MetaModel
 
diff --git a/base_partner_merge/tests/test_merge.py b/base_partner_merge/tests/test_merge.py
index 063b2ca41..5ad473aa5 100644
--- a/base_partner_merge/tests/test_merge.py
+++ b/base_partner_merge/tests/test_merge.py
@@ -36,24 +36,32 @@ class PartnerMergeTestCase(TransactionCase):
     def test_10_name_merge(self):
         """ Merge users with duplicate names """
         self._unlink_all()
-        self._create_duplicates('name', 'Donald Duck',
-            'email', ['donald@therp.nl', 'donald@sunflowerweb.nl'])
-        self._create_duplicates('name', 'Mickey Mouse',
-            'email', ['mickey@therp.nl', 'mickey@sunflowerweb.nl'])
+        self._create_duplicates(
+            'name', 'Donald Duck',
+            'email', ['donald@therp.nl', 'donald@sunflowerweb.nl'],
+        )
+        self._create_duplicates(
+            'name', 'Mickey Mouse',
+            'email', ['mickey@therp.nl', 'mickey@sunflowerweb.nl'],
+        )
         self._count_donalds_mickeys(2, 2)
         # Merge all names that start with 'D',
-        self.partner.deduplicate_on_fields(['name'],
-            domain=[('name', 'like', 'D%')])
+        self.partner.deduplicate_on_fields(
+            ['name'], domain=[('name', 'like', 'D%')],
+        )
         self._count_donalds_mickeys(1, 2)
 
     def test_20_ref_merge(self):
         """ Merge users with duplicate references """
         self._unlink_all()
-        self._create_duplicates('ref', 'DD123',
-            'name', ['Donald Duck', 'Mickey Mouse'])
+        self._create_duplicates(
+            'ref', 'DD123',
+            'name', ['Donald Duck', 'Mickey Mouse'],
+        )
         # Merge on reference, leaving out guys that have no ref
-        self.partner.deduplicate_on_fields(['ref'],
-            domain=[('ref', '!=', False)])
+        self.partner.deduplicate_on_fields(
+            ['ref'], domain=[('ref', '!=', False)],
+        )
         # Test if only one remains after
         partners = self.partner.search([('ref', '=', 'DD123')])
         self.assertEquals(len(partners), 1)
@@ -61,10 +69,11 @@ class PartnerMergeTestCase(TransactionCase):
     def test_30_ref_merge(self):
         """ Fringe case: three guys, two to merge """
         self._unlink_all()
-        self._create_duplicates('ref', 'DD123',
-            'name', ['Donald Duck', 'Donald Duck', 'Mickey Mouse'])
-        self.partner.deduplicate_on_fields(['ref'],
-            domain=[('name', '=', 'Donald Duck')])
+        self._create_duplicates(
+            'ref', 'DD123',
+            'name', ['Donald Duck', 'Donald Duck', 'Mickey Mouse'],
+        )
+        self.partner.deduplicate_on_fields(
+            ['ref'], domain=[('name', '=', 'Donald Duck')],
+        )
         self._count_donalds_mickeys(1, 1)
-
-