Use unittest.mock.Mock (python 3.3) with factoryboy

factories.py

import factory
import string
import random

from unittest.mock import Mock


class ThingFactory(factory.Factory):
    FACTORY_FOR = Mock

    number = factory.Sequence(lambda n: n, type=int)
    string = factory.Sequence(lambda _:''.join(random.choice(string.ascii_uppercase) for x in range(4)))
    date = factory.Sequence(lambda _: datetime.datetime.utcnow())

usage

In [1]: from factories import ThingFactory


In [2]: thing = ThingFactory()

In [3]: thing
Out[3]: <Mock id='4367330448'>

In [4]: thing.date
Out[4]: datetime.datetime(2013, 6, 13, 8, 4, 0, 659616)