diff -r c7235a4abdee Lib/shutil.py
--- a/Lib/shutil.py	Sun May 02 18:45:11 2010 +0200
+++ b/Lib/shutil.py	Sun May 02 15:39:33 2010 -0400
@@ -45,19 +45,11 @@
 def copyfile(src, dst):
     """Copy data from src to dst"""
     if _samefile(src, dst):
-        raise Error, "`%s` and `%s` are the same file" % (src, dst)
+        raise Error("`%s` and `%s` are the same file" % (src, dst))
 
-    fsrc = None
-    fdst = None
-    try:
-        fsrc = open(src, 'rb')
-        fdst = open(dst, 'wb')
-        copyfileobj(fsrc, fdst)
-    finally:
-        if fdst:
-            fdst.close()
-        if fsrc:
-            fsrc.close()
+    with open(src, 'rb') as fsrc:
+        with open(dst, 'wb') as fdst:
+            copyfileobj(fsrc, fdst)
 
 def copymode(src, dst):
     """Copy mode bits from src to dst"""