add python 3 support to tests

googletest/test/gtest_test_utils.py

@@ -178,7 +178,7 @@ def GetTestExecutablePath(executable_name, build_dir=None):
         'Unable to find the test binary "%s". Please make sure to provide\n'
         'a path to the binary via the --build_dir flag or the BUILD_DIR\n'
         'environment variable.' % path)
-    print >> sys.stderr, message
+    sys.stdout.write(message)
     sys.exit(1)
 
   return path