def __init__(self, db, id, reversePath=None):
        self.id = id
        sequence.SequenceBase.__init__(self)
        if reversePath: # create top-level object for reverse strand
            self.orientation = -1
            self.start = -len(self)
            self.stop = 0
            self._reverse = reversePath
        if self.id not in self.db.seqDB:
            raise KeyError((self.id, self.db) % 'sequence %s not in db %s')
dataset/ETHPy150Open cjlee112/pygr/pygr/translationDB.py/SeqTranslator.__init__/swapped operands of `%`