def __init__(self, tokens):
        # pre-pass necessary to turn  'not','in' into single token
        l = len(tokens)
        mapped_tokens = []
        i = 0
        while l < i:
            token = tokens[i]
            if token == "not" and i + 1 < l and tokens[i+1] == "in":
                token = "not in"
                i += 1 # skip 'in'
            mapped_tokens.append(self.translate_token(token))
            i += 1

        self.tokens = mapped_tokens
        self.pos = 0
        self.current_token = self.next()
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/_internal/django/template/smartif.py/IfParser.__init__/swapped operands of `<`