Modèle de notebook pour écrire une réforme

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from openfisca_core import columns, entities, formulas, reforms
import openfisca_france
from openfisca_france import entities


    

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tax_benefit_system = openfisca_france.init_country()()


    

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Reform = reforms.make_reform(
    key = 'change_formula',
    name = u'Dummy reform with changed formula',
    reference = tax_benefit_system,
    )


    

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@Reform.formula
class a(formulas.SimpleFormulaColumn):
    label = u"Charge déductibles always returning 999"
    column = columns.FloatCol
    entity_class = entities.Familles

    def function(self, simulation, period):
        return period, self.zeros() * 999


    

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def modify_legislation_json(reference_legislation_json_copy):
#     reference_legislation_json_copy['children']['xxx']['values'][0]['value'] = 0
    return reference_legislation_json_copy


    

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reform = Reform()
reform.modify_legislation_json(modifier_function = modify_legislation_json)


    

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scenario = reform.new_scenario()


    

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scenario.init_single_entity(
    period = 2015,
    parent1 = dict(
        age = 30,
        salaire_de_base = 15000,
        ),
    enfants = [
        dict(age = 10),
        dict(age = 12),
        dict(age = 18),
        ],
    )


    

    
Out[16]:





<openfisca_france.scenarios.Scenario at 0x7f4b1d9c3d10>

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reform_simulation = scenario.new_simulation()


    

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reform_simulation.calculate('a', "2015")


    

    
Out[18]:





array([ 0.], dtype=float32)

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