diff --git a/Lib/hmac.py b/Lib/hmac.py
index 6af564edafd..cae08002e55 100644
--- a/Lib/hmac.py
+++ b/Lib/hmac.py
@@ -35,7 +35,7 @@ def __init__(self, key, msg = None, digestmod = None):
         self.outer = digestmod.new()
         self.inner = digestmod.new()
         self.digest_size = digestmod.digest_size
-        
+
         blocksize = 64
         ipad = "\x36" * blocksize
         opad = "\x5C" * blocksize
@@ -97,4 +97,3 @@ def new(key, msg = None, digestmod = None):
     method.
     """
     return HMAC(key, msg, digestmod)
-
diff --git a/Lib/pprint.py b/Lib/pprint.py
index 29526857328..b16fb080207 100644
--- a/Lib/pprint.py
+++ b/Lib/pprint.py
@@ -283,7 +283,7 @@ def _safe_repr(object, context, maxlevels, level):
                 recursive = 1
         del context[objid]
         return format % _commajoin(components), readable, recursive
-        
+
     rep = `object`
     return rep, (rep and not rep.startswith('<')), 0
 
diff --git a/Lib/test/test_dumbdbm.py b/Lib/test/test_dumbdbm.py
index 51b62172e3d..d62c74d41b9 100644
--- a/Lib/test/test_dumbdbm.py
+++ b/Lib/test/test_dumbdbm.py
@@ -24,7 +24,7 @@ def __init__(self, *args):
         unittest.TestCase.__init__(self, *args)
         self._dkeys = self._dict.keys()
         self._dkeys.sort()
-        
+
     def test_dumbdbm_creation(self):
         for ext in [".dir", ".dat", ".bak"]:
             try: os.unlink(self._fname+ext)
@@ -57,7 +57,7 @@ def read_helper(self, f):
         keys = self.keys_helper(f)
         for key in self._dict:
             self.assertEqual(self._dict[key], f[key])
-        
+
     def keys_helper(self, f):
         keys = f.keys()
         keys.sort()
diff --git a/Lib/test/test_hmac.py b/Lib/test/test_hmac.py
index ef926bdf293..626b93761db 100644
--- a/Lib/test/test_hmac.py
+++ b/Lib/test/test_hmac.py
@@ -45,7 +45,7 @@ def test_withmodule(self):
             h = hmac.HMAC("key", "", sha)
         except:
             self.fail("Constructor call with sha module raised exception.")
-        
+
 class SanityTestCase(unittest.TestCase):
     def test_default_is_md5(self):
         """Testing if HMAC defaults to MD5 algorithm."""
@@ -106,4 +106,3 @@ def test_main():
 
 if __name__ == "__main__":
     test_main()
-
diff --git a/Lib/test/test_pep247.py b/Lib/test/test_pep247.py
index 3a35164bd22..88f246131b1 100644
--- a/Lib/test/test_pep247.py
+++ b/Lib/test/test_pep247.py
@@ -1,6 +1,6 @@
 #
 # Test suite to check compliance with PEP 247, the standard API for
-# hashing algorithms. 
+# hashing algorithms.
 #
 
 import md5, sha, hmac