diff --git a/tests/test_issues_server.py b/tests/test_issues_server.py
index 6de33d8d9ed733b0c042007feb3e97eb2c87016b..669c3b1fcf62a3d236c61a2844ea6dd4e082ac78 100644
--- a/tests/test_issues_server.py
+++ b/tests/test_issues_server.py
@@ -262,41 +262,39 @@ def test_issue_131():
 def test_issue_170():
     """update scalar data type to list data type"""
     p = db.Property(name="TestProp1", datatype=db.LIST(db.INTEGER))
-    p.value = [1,2]
-    p.insert() # works
+    p.value = [1, 2]
+    p.insert()  # works
 
     p2 = db.execute_query("FIND TestProp1", unique=True)
     assert p2.datatype == db.LIST(db.INTEGER)
-    assert p2.value == [1,2]
+    assert p2.value == [1, 2]
 
     p.description = "TestDescription"
-    p.update() # fails
+    p.update()  # fails
 
     p2 = db.execute_query("FIND TestProp1", unique=True)
     assert p2.datatype == db.LIST(db.INTEGER)
-    assert p2.value == [1,2]
+    assert p2.value == [1, 2]
     assert p2.description == "TestDescription"
 
-
     p = db.Property(name="TestProp2", datatype=db.DOUBLE)
-    p.insert() # works
+    p.insert()  # works
 
     p.datatype = db.LIST(db.INTEGER)
-    p.update() # works
+    p.update()  # works
     p2 = db.execute_query("FIND TestProp1", unique=True)
     assert p2.datatype == db.LIST(db.INTEGER)
-    assert p2.value == [1,2]
+    assert p2.value == [1, 2]
     p2.value = [1, 2]
-    p2.update() # fails
-
+    p2.update()  # fails
 
     p = db.Property(name="TestProp3", datatype=db.DOUBLE)
-    p.insert() # works
+    p.insert()  # works
 
     p.datatype = db.LIST(db.INTEGER)
     p.value = [1, 2]
-    p.update() # fails
+    p.update()  # fails
 
     p2 = db.execute_query("FIND TestProp1", unique=True)
     assert p2.datatype == db.LIST(db.INTEGER)
-    assert p2.value == [1,2]
+    assert p2.value == [1, 2]