def test_init(self):
        class F(Form):
            fields=[
                Field('first', convs.Int()),
                Field('second', convs.Int()),
            ]
        env = AppEnvironment.create()
        form = F(env)
        self.assertEqual(form.initial, {})
        self.assertEqual(form.raw_data, {'first':'', 'second':''})
        self.assertEqual(form.python_data, {'first':None, 'second':None})
For each item-item pair, make the first item's id the key
dataset/ETHPy150Open SmartTeleMax/iktomi/tests/forms/forms.py/FormClassInitializationTests.test_init--crossover with--dataset/ETHPy150Open evancasey/spark-knn-recommender/algorithms/itemBasedRecommender.py/keyOnFirstItem