Removed unused variables on exception catch and format code

tests/p/test_all.py

@@ -6,83 +6,87 @@
 import unittest
 from sdag2 import DAG, CycleDetectedException
 
-class DAGTest(unittest.TestCase):    
+
+class DAGTest(unittest.TestCase):
+
     def test_simple(self):
         '''
         Tests the verticles order in:
-        
+
         C --> A --> B --> D
         '''
-        
+
         dag = DAG()
         a = dag.add("A")
         b = dag.add("B")
         c = dag.add("C")
         d = dag.add("D")
-        
+
         dag.add_edge(c, a)
         dag.add_edge(a, b)
         dag.add_edge(b, d)
         dag.add_edge(c, d)
-        
+
         rs = dag.topologicaly()
-        
+
         self.assertTrue(rs.index("C") < rs.index("A"))
         self.assertTrue(rs.index("A") < rs.index("B"))
         self.assertTrue(rs.index("B") < rs.index("D"))
         self.assertTrue(rs.index("C") < rs.index("D"))
-        
+
     def test_cicle_detect(self):
         '''
         Tests the verticles order in:
-        
+
         C --> A --> B --> D -> C
         '''
-        
+
         dag = DAG()
         a = dag.add("A")
         b = dag.add("B")
         c = dag.add("C")
         d = dag.add("D")
-        
+
         dag.add_edge(c, a)
         dag.add_edge(a, b)
         dag.add_edge(b, d)
         dag.add_edge(c, d)
-        
+
         try:
             # add cicle at A --> C --> A
             dag.add_edge(a, c)
             raise Exception("Cycle not detected")
-        except CycleDetectedException, err:
-            _x = str(err)
+        except CycleDetectedException:
+            pass
 
     def test_cicle_detect_tuples(self):
         '''
         Tests the verticles order in:
-        
+
         a --> b --> c --> a
 
         '''
-        
+
         dag = DAG()
         a = dag.add(1)
         b = dag.add((1, 'b', None))
         c = dag.add(frozenset((2, 'c')))
-        
+
         dag.add_edge(a, b)
         dag.add_edge(b, c)
-        
+
         try:
             # add cicle at a --> b --> c --> a
             dag.add_edge(c, a)
             dag.add_edge(a, c)
             raise Exception("Cycle not detected")
-        except CycleDetectedException, err:
-            _x = str(err)
+        except CycleDetectedException:
+            pass
+
 
 def main():
     unittest.main()
-
+
+
 if __name__ == "__main__":
     main()