def __init__(self, parent, row, processors, keymap):

            self._parent = parent
            self._row = row
            self._processors = processors
            self._keymap = keymap
RowProxy objects are constructed by ResultProxy objects.
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/engine/result.py/BaseRowProxy.__init__