diff --git a/appveyor.yml b/appveyor.yml
index 0d71db7..6752127 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -17,4 +17,5 @@ install:
   - activate test-environment
 
 test_script:
+  - python setup.py install
   - nosetests -v
diff --git a/epynet/__init__.py b/epynet/__init__.py
index 100d491..72c9d54 100644
--- a/epynet/__init__.py
+++ b/epynet/__init__.py
@@ -1,4 +1,4 @@
 from .network import Network
 from .link import Link, Pipe, Pump, Valve
 from .node import Node, Junction, Reservoir, Tank
-from .objectcollection import ObjectCollection 
+from .objectcollection import ObjectCollection
diff --git a/epynet/network.py b/epynet/network.py
index 9dc3f98..36598de 100644
--- a/epynet/network.py
+++ b/epynet/network.py
@@ -2,6 +2,7 @@
 import math
 
 from . import epanet2
+
 from .objectcollection import ObjectCollection
 from .node import *
 from .link import * 
diff --git a/epynet/objectcollection.py b/epynet/objectcollection.py
index 42f68a9..ee302e7 100644
--- a/epynet/objectcollection.py
+++ b/epynet/objectcollection.py
@@ -1,6 +1,5 @@
 import collections
 import pandas as pd
-import pudb
 
 class ObjectCollection(dict):