def normalize_username(self, username):
        username = username.lower()
        username = self.username_map.get(username, username)
        return username
Return ``log(p)``, where ``p`` is the probability associated
dataset/ETHPy150Open jupyterhub/jupyterhub/jupyterhub/auth.py/Authenticator.normalize_username--crossover with--dataset/ETHPy150Open nltk/nltk/nltk/probability.py/ProbabilisticMixIn.logprob