core.py 文件源码

def __next__(self):
        """
        Return the next value, or raise StopIteration.

        Examples
        --------
        >>> x = np.ma.array([3, 2], mask=[0, 1])
        >>> fl = x.flat
        >>> fl.next()
        3
        >>> fl.next()
        masked_array(data = --,
                     mask = True,
               fill_value = 1e+20)
        >>> fl.next()
        Traceback (most recent call last):
          File "<stdin>", line 1, in <module>
          File "/home/ralf/python/numpy/numpy/ma/core.py", line 2243, in next
            d = self.dataiter.next()
        StopIteration

        """
        d = next(self.dataiter)
        if self.maskiter is not None:
            m = next(self.maskiter)
            if isinstance(m, np.void):
                return mvoid(d, mask=m, hardmask=self.ma._hardmask)
            elif m:  # Just a scalar, masked
                return masked
        return d