def finalize_options(self):
        _build_ext.finalize_options(self)
        # Prevent numpy from thinking it is still in its setup process:
        __builtins__.__NUMPY_SETUP__ = False
        import numpy
        self.include_dirs.append(numpy.get_include())
def test_impl(n):
            df = pd.DataFrame({'A': np.arange(0, n, 1, np.float32)})
            df.A[0:100] = np.nan
            df.A[200:331] = np.nan
            return df.A.quantile(.25)