(self)
return iter(self._sequence)
>>> ii = OrderedDict(((1, 3), (3, 2), (2, 1))).iterkeys()
        >>> ii.next()
        1
        >>> ii.next()
        3
        >>> ii.next()
        2
        >>> ii.next()
        Traceback (most recent call last):
        StopIteration
>>> ii = OrderedDict(((1, 3), (3, 2), (2, 1))).iterkeys()
        >>> ii.next()
        1
        >>> ii.next()
        3
        >>> ii.next()
        2
        >>> ii.next()
        Traceback (most recent call last):
        StopIteration
>>> ii = OrderedDict ((( 1 3 ) ( 3 2 ) ( 2 1 ))) . iterkeys () >>> ii . next () 1 >>> ii . next () 3 >>> ii . next () 2 >>> ii . next () Traceback ( most recent call last ) : StopIteration
def iterkeys(self):
        """
        >>> ii = OrderedDict(((1, 3), (3, 2), (2, 1))).iterkeys()
        >>> ii.next()
        1
        >>> ii.next()
        3
        >>> ii.next()
        2
        >>> ii.next()
        Traceback (most recent call last):
        StopIteration
        """
        return iter(self._sequence)
def iterkeys ( self ) : return iter ( self . _sequence )