def _GetAxes(self):
    """Return a generator of (position_code, Axis) tuples for this chart's axes.

    The axes will be sorted by position using the canonical ordering sequence,
    _POSITION_CODES.
    """
    for code in self._POSITION_CODES:
      for axis in self._axes.get(code, []):
        yield (code, axis)
Return a generator of (position_code, Axis) tuples for this chart's axes.

    The axes will be sorted by position using the canonical ordering sequence,
    _POSITION_CODES.
    
mapreduce/lib/graphy/common.py