diff --git a/src/pycryptopp/bench/common.py b/src/pycryptopp/bench/common.py
index 2d8f315..a0d195d 100644
--- a/src/pycryptopp/bench/common.py
+++ b/src/pycryptopp/bench/common.py
@@ -54,14 +54,14 @@ def insecurerandstr(n):
     return ''.join(map(chr, map(insecurerandom.randrange, [0]*n, [256]*n)))
 
 def calib_clock():
-    interval = 1.0
+    #interval = 1.0
     
     import time
-    tc = time.clock
-    tt = time.time
+    #tc = time.clock
+    #tt = time.time
 
     def measure_sleep(x, clock):
-        st = clock()
+        #st = clock()
         time.sleep(x)
         
     
diff --git a/src/pycryptopp/test/test_ed25519_kat.py b/src/pycryptopp/test/test_ed25519_kat.py
index 83e38be..9327078 100644
--- a/src/pycryptopp/test/test_ed25519_kat.py
+++ b/src/pycryptopp/test/test_ed25519_kat.py
@@ -37,8 +37,8 @@ def test_short(self):
             vk2 = ed25519.VerifyingKey(vk_s)
             self.failUnlessEqual(vk2, vk) # objects should compare equal
             newsig = sk.sign(msg)
-            sig_R,sig_S = sig[:32],sig[32:]
-            newsig_R,newsig_S = newsig[:32],newsig[32:]
+            #sig_R,sig_S = sig[:32],sig[32:]
+            #newsig_R,newsig_S = newsig[:32],newsig[32:]
             self.failUnlessEqual(hexlify(newsig), hexlify(sig)) # deterministic sigs
             self.failUnlessEqual(vk.verify(sig, msg), None) # no exception