generic.py 文件源码

def iteritems(self):
        """Iterate over (label, values) on info axis

        This is index for Series, columns for DataFrame, major_axis for Panel,
        and so on.
        """
        for h in self._info_axis:
            yield h, self[h]

    # originally used to get around 2to3's changes to iteritems.
    # Now unnecessary. Sidenote: don't want to deprecate this for a while,
    # otherwise libraries that use 2to3 will have issues.