diff --git a/tests-1.2/basic.py b/tests-1.2/basic.py
index 2fd7fb9..2321da8 100644
--- a/tests-1.2/basic.py
+++ b/tests-1.2/basic.py
@@ -6,10 +6,7 @@
 similar identifiers.
 """
 
-import sys
 import logging
-import unittest
-import ipaddr
 
 from oftest import config
 import ofp
diff --git a/tests-1.2/groups.py b/tests-1.2/groups.py
index 999604b..1e86963 100644
--- a/tests-1.2/groups.py
+++ b/tests-1.2/groups.py
@@ -1,11 +1,7 @@
 """
 Group table test cases.
 """
-import time
-import signal
-import sys
 import logging
-import unittest
 
 from oftest import config
 import of12 as ofp
diff --git a/tests-1.2/ipv6.py b/tests-1.2/ipv6.py
index 1687ce0..e1f4214 100644
--- a/tests-1.2/ipv6.py
+++ b/tests-1.2/ipv6.py
@@ -14,8 +14,6 @@
 
 import logging
 import ipaddr
-import os.path
-import subprocess
 
 from oftest import config
 import ofp