diff --git a/week05-testing/test_times.py b/week05-testing/test_times.py
index c12e930..0bf15e0 100644
--- a/week05-testing/test_times.py
+++ b/week05-testing/test_times.py
@@ -33,7 +33,7 @@ def test_time_goes_backwards(): # this is the negative test
     with pytest.raises(ValueError):
         time_range("2010-01-12 10:15:00","2010-01-12 10:00:00")
 
-#a parametrised test. This saves time and code
+# parametrised test. This saves time and code
 @pytest.mark.parametrize("test_input,expected",[('compute_overlap_time(time_range("2010-01-12 10:00:00", "2010-01-12 10:30:00"),time_range("2010-01-12 11:30:00", "2010-01-12 12:00:00"))',[])
                                                ,('compute_overlap_time(time_range("2010-01-12 10:00:00", "2010-01-12 12:00:00",8),time_range("2010-01-12 10:30:00", "2010-01-12 11:00:00",2))',[('2010-01-12 10:30:00', '2010-01-12 10:45:00'), ('2010-01-12 10:45:00', '2010-01-12 11:00:00')])
                                                ,('compute_overlap_time(time_range("2010-01-12 10:00:00", "2010-01-12 10:30:00"),time_range("2010-01-12 10:30:00", "2010-01-12 11:00:00"))',[])