diff -r 6b2db7fc17f7 Lib/test/test_zipfile.py
--- a/Lib/test/test_zipfile.py	Wed Jun 11 04:31:29 2014 -0700
+++ b/Lib/test/test_zipfile.py	Wed Jun 11 04:41:19 2014 -0700
@@ -647,8 +647,8 @@
 
             # then check that the filter works on individual files
             with captured_stdout() as reportSIO, self.assertWarns(UserWarning):
-                zipfp.writepy(packagedir, filterfunc=lambda fn:
-                                                     'bad' not in fn)
+                zipfp.writepy(packagedir, filterfunc=lambda path:
+                                                     not os.path.basename(path).startswith("bad"))
             reportStr = reportSIO.getvalue()
             if reportStr:
                 print(reportStr)