def load(self, filename, create_if_missing=True):
        filename = Path(filename)
        if not filename.exists() and create_if_missing:
            self.load_pip_requirements()
            with filename.open("w") as f:
                f.write(yaml.dump(self.serialized, default_flow_style=False,
                                  encoding=None))
            self.filename = filename
            return self.save(filename)
        with filename.open() as f:
            for group, requirements in yaml.load(f.read()).items():
                for requirement in requirements:
                    self[group].add(Requirement.coerce(requirement))
        self.filename = filename
def get_organizations(self):
        legis = Organization('Minnesota Legislature', classification='legislature')

        upper = Organization('Minnesota Senate', classification='upper',
                             parent_id=legis._id)
        lower = Organization('Minnesota House of Representatives',
                             classification='lower', parent_id=legis._id)

        for n in range(1, 68):
            upper.add_post(label=str(n), role='Senator',
                           division_id='ocd-division/country:us/state:mn/sldu:{}'.format(n))
            lower.add_post(label=str(n) + 'A', role='Representative',
                           division_id='ocd-division/country:us/state:mn/sldl:{}a'.format(n))
            lower.add_post(label=str(n) + 'B', role='Representative',
                           division_id='ocd-division/country:us/state:mn/sldl:{}b'.format(n))

        yield legis
        yield upper
        yield lower