@property
    def l2_norm(self):
        if self._norm is None: 
            self._norm = sum(w * w for w in self.values()) ** 0.5
        return self._norm
should say hello monkey
dataset/ETHPy150Open clips/pattern/pattern/vector/__init__.py/Vector.l2_norm--crossover with--dataset/ETHPy150Open plivo/plivohelper-python/tests/test_restxml.py/TestSpeak.testSpeakHelloWorld