[python-nl] while-lus vraagje

[rr at nederhoed.com]

(attachment is inclusief doctest)

Ach, als we dan toch bezig zijn:

class ResultSetIterator:
    """ Itereer over een result set van een query mbv een klasse """
    def __init__(self, result_set):
        """Constructor """
        self.rs = result_set

    def next(self):
        """Iterator """
        while True:
            result = self.rs.fetchone()
            if result is not None:
                yield result
            else:
                raise StopIteration

    def __iter__(self):
        return self.next()

# in programma:

for row in ResultSetIterator(rs):
    print row
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