def get_user(self, user_profile_id):
        try:
            return get_user_profile_by_id(user_profile_id)
        except UserProfile.DoesNotExist:
            return None
shred sequence into kmers and update kmer dictionary
dataset/ETHPy150Open zulip/zulip/zproject/backends.py/ZulipAuthMixin.get_user--crossover with--dataset/ETHPy150Open CGATOxford/cgat/scripts/fasta2unique_kmers.py/KmerCounter.shred