def secret_key_bytes(self):
        if not hasattr(self, '_secret_key_bytes'):
            key = self.secret_key()
            if key is None:
                self._secret_key_bytes = None
            else:
                self._secret_key_bytes = codecs.encode(key, "utf-8")
        return self._secret_key_bytes
Check that L{ManBuilder.build} find the man page in the directory, and
dataset/ETHPy150Open bokeh/bokeh/bokeh/settings.py/Settings.secret_key_bytes--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/python/test/test_release.py/ManBuilderTestCase.test_build