This change enables to retrieve the row as a dict and iterate the keys and/or items, like with a normal dict; in other words, making the Row object a dict-like object:

>>> row.dict()
{'name': 'Isabel', 'profession': 'bridge builder'}
>>> for k, v in row.items():
>>> for k in row.keys():

update tests for Row.keys(), Row.items() and Row.dict()