diff --git a/setup.py b/setup.py
index 9baecc3847d3cbae5211464f337541ff38ce7a9c..f673cacea5a4b27469fc59719b83bb6124a162d9 100644
--- a/setup.py
+++ b/setup.py
@@ -5,4 +5,3 @@ setup(
     packages=find_packages(),
     tests_require=["nose>=1.0"],
 )
-
diff --git a/tests/test_tickets.py b/tests/test_tickets.py
index a03284c17cee170b6a06218fe1cdc5f17affa03f..3e0cd7219d183d29fbce598e89c117968e7f86b3 100644
--- a/tests/test_tickets.py
+++ b/tests/test_tickets.py
@@ -26,13 +26,17 @@
 @author: tf
 """
 from __future__ import absolute_import, print_function, unicode_literals
+
 import caosdb as db
-from tests import test_misc
-from caosdb.exceptions import CaosDBException, TransactionError, EntityError, UniqueNamesError, AmbiguityException, EntityDoesNotExistError
-from nose.tools import (nottest, assert_true, assert_raises, assert_not_equals,
-                        assert_equals, assert_false, assert_is_not_none,
-                        assert_is_none)
+from caosdb.exceptions import (AmbiguityException, CaosDBException,
+                               EntityDoesNotExistError, EntityError,
+                               TransactionError, UniqueNamesError)
 from nose import with_setup
+from nose.tools import (assert_equals, assert_false, assert_is_none,
+                        assert_is_not_none, assert_raises, assert_true,
+                        nottest)
+
+from tests import test_misc
 
 
 def setup_module():
@@ -62,6 +66,7 @@ def test_ticket_103a():
 
         for w in rt.get_warnings():
             haswarnings = True
+
             break
         assert_true(haswarnings)
 
@@ -73,6 +78,7 @@ def test_ticket_103a():
 
         for w in rt.get_warnings():
             haswarnings = True
+
             break
         assert_true(haswarnings)
 
@@ -86,13 +92,17 @@ def test_ticket_103a():
             assert_equals(128, int(exc.get_code()))
             rt = exc.get_entities()[0]
         assert_false(rt.is_valid())
+
         for w in rt.get_warnings():
             haswarnings = True
+
             break
         assert_true(haswarnings)
+
         for w in rt.get_errors():
             if w.get_code() == 128:
                 hasstricterror = True
+
                 break
         assert_true(hasstricterror)
     finally:
@@ -108,13 +118,17 @@ def test_ticket_103a():
     try:
         rt.insert(strict=True, raise_exception_on_error=False)
         assert_false(rt.is_valid())
+
         for w in rt.get_warnings():
             haswarnings = True
+
             break
         assert_true(haswarnings)
+
         for w in rt.get_errors():
             if w.get_code() == 128:
                 hasstricterror = True
+
                 break
         assert_true(hasstricterror)
     finally:
@@ -323,7 +337,8 @@ def test_ticket_120():
         assert_equals(r3.id, cr3.id)
 
         cr3 = db.Query(
-            "FIND RECORD WHICH HAS A PROPERTY blabla=4 OR SimpleRT1->SimpleRT2 WHICH HAS A PROPERTY SimpleRT1->" +
+            "FIND RECORD WHICH HAS A PROPERTY blabla=4 OR SimpleRT1->SimpleRT2"
+            " WHICH HAS A PROPERTY SimpleRT1->" +
             str(
                 r1.id) +
             "").execute(
@@ -336,7 +351,8 @@ def test_ticket_120():
         assert_equals(r3.id, cr3.id)
 
         cr3 = db.Query(
-            "FIND RECORD SimpleRT1 . SimpleRT1.SimpleRT1.SimpleDoubleProperty='3.14'"
+            "FIND RECORD SimpleRT1 . "
+            "SimpleRT1.SimpleRT1.SimpleDoubleProperty='3.14'"
         ).execute(unique=True)
         assert_equals(r3.id, cr3.id)
 
@@ -412,6 +428,7 @@ def test_ticket_106():
     try:
         rt = db.RecordType(name="test RT 2")
         rt.insert()
+
         while True:
             try:
                 rt.insert()
@@ -419,6 +436,7 @@ def test_ticket_106():
                     "2nd insert should raise an TransactionError")
             except db.exceptions.TransactionError as e:
                 print(e)
+
                 break
     finally:
         rt.delete()
@@ -608,11 +626,13 @@ def test_ticket_39():
                 path="testfiles/file1", from_location=testfile).insert()
         except EntityError as e:
             assert_equals(
-                "Insufficient read permission for this file. Please make it readable.",
+                "Insufficient read permission for this file. "
+                "Please make it readable.",
                 e.msg)
 
     finally:
         os.chmod(testfile, 0o600)
+
         if len(db.execute_query("FIND RT1")) > 0:
             rt1.delete()
         try:
@@ -804,6 +824,7 @@ def test_ticket_147():
         r5 = db.Record().add_parent(bmsim).add_property(tstep, value="0.003")
         c.extend([r1, r2, r3, r4, r5]).insert()
         assert_true(c.is_valid())
+
         for e in c:
             assert_true(e.is_valid())
 
@@ -1083,6 +1104,7 @@ def test_ticket_166():
         r5 = db.Record().add_parent(bmsim).add_property(tstep, value="0.003")
         c.extend([r1, r2, r3, r4, r5]).insert()
         assert_true(c.is_valid())
+
         for e in c:
             assert_true(e.is_valid())
 
@@ -1113,6 +1135,7 @@ def test_ticket_166():
         q.putFlag("P", "0L5")
         ret = q.execute()
         assert_equals(5, len(ret))
+
         for e in ret:
             assert_equals(bmsim.id, e.get_parents()[0].id)
 
@@ -1120,6 +1143,7 @@ def test_ticket_166():
         q.putFlag("P", "5L4")
         ret = q.execute()
         assert_equals(4, len(ret))
+
         for e in ret:
             assert_equals(frm.id, e.get_parents()[0].id)
 
@@ -1305,6 +1329,7 @@ def test_ticket_165():
 
         c = db.Container().extend([p, rt_a, rt_b, r_a]).insert()
         assert_true(c.is_valid())
+
         for e in c:
             assert_true(e.is_valid())
 
@@ -1438,18 +1463,22 @@ def test_ticket_174():
         assert_true(c.is_valid())
 
         assert_true(rt1.is_valid())
+
         for i in range(len(rt1.get_properties())):
             assert_equals(i + 1.0, float(rt1.get_properties()[i].value))
 
         assert_true(rt2.is_valid())
+
         for i in range(len(rt2.get_properties())):
             assert_equals(i + 1.0, float(rt2.get_properties()[i].value))
 
         assert_true(rt3.is_valid())
+
         for i in range(len(rt3.get_properties())):
             assert_equals(i + 1.0, float(rt3.get_properties()[i].value))
 
         assert_true(rt4.is_valid())
+
         for i in range(len(rt4.get_properties())):
             assert_equals(i + 1.0, float(rt4.get_properties()[i].value))