tests: pep8ness

tests/test_nanterre_doublons.py

@@ -36,7 +36,7 @@ def test_list_doublons(nanterre_classic_family, app):
         Duplicate.objects.create(
             first=new[-1],
             second=e['marie'],
-            score=(100-i/2)/100.0)
+            score=(100 - i / 2) / 100.0)
 
     response = app.get(url)
     assert response.json['err'] == 0