diff --git a/ait/gui/__init__.py b/ait/gui/__init__.py
index ad600219..70b36623 100644
--- a/ait/gui/__init__.py
+++ b/ait/gui/__init__.py
@@ -94,7 +94,7 @@ def getPacketDefn(uid):
 
     else:
         tlmdict = ait.core.tlm.getDefaultDict()
-        for k, v in tlmdict.iteritems():
+        for k, v in tlmdict.items():
             if v.uid == uid:
                 packet_defns[uid] = v
                 return v
@@ -175,7 +175,7 @@ class Playback(object):
         be sent to the frontend during this.
     playback.enabled: True if historical data playback is enabled. This will be False
         if a database connection cannot be made or if data playback is disabled for
-        some other reason. 
+        some other reason.
     """
 
     def __init__(self):
@@ -316,7 +316,7 @@ def process(self, input_data, topic=None):
                 self.process_log_msg(input_data)
                 processed = True
 
-        if not processed: 
+        if not processed:
             raise ValueError('Topic of received message not recognized as telem or log stream.')
 
     def process_telem_msg(self, msg):
diff --git a/test_scripts/notification_test.py b/test_scripts/notification_test.py
index d04736f8..a4a2a6fa 100644
--- a/test_scripts/notification_test.py
+++ b/test_scripts/notification_test.py
@@ -98,7 +98,7 @@ def get_packet_and_defn():
 
 def get_limit_dict():
     limit_dict = defaultdict(dict)
-    for k, v in limits.getDefaultDict().iteritems():
+    for k, v in limits.getDefaultDict().items():
         packet, field = k.split('.')
         limit_dict[packet][field] = v