diff --git a/tests/__init__.py b/tests/__init__.py
index 3bc7b9094c..6ba206d2de 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -2,3 +2,5 @@
 #this repository contains the full copyright notices and license terms.
 
 from .test_project_plan import suite
+
+__all__ = ['suite']
diff --git a/work.py b/work.py
index 7d277b2a7b..e310303d6d 100644
--- a/work.py
+++ b/work.py
@@ -94,8 +94,6 @@ class Work:
         '''
         Function to compute function fields
         '''
-        cursor = Transaction().cursor
-
         res = {}
 
         ids = [w.id for w in works]
@@ -159,8 +157,6 @@ class Work:
 
     @classmethod
     def set_function_fields(cls, works, name, value):
-        pool = Pool()
-
         fun_fields = ('actual_start_date', 'actual_finish_date',
                       'constraint_start_date', 'constraint_finish_date')
         db_fields = ('actual_start_time', 'actual_finish_time',