def setup(self):
        self.N = 1000000
        self.halfway = (1 - (self.N // 2))
        self.index = date_range('20010101', periods=self.N, freq='T')
        self.s = Series(self.index)
        self.ts = self.s.iloc[self.halfway]
        self.df = DataFrame({'a': np.random.randn(self.N), }, index=self.index)
dataset/ETHPy150Open pydata/pandas/asv_bench/benchmarks/eval.py/query_datetime_index.setup/swapped operands of `-`