factories.py 文件源码

def town_factory(**custom):
    """Generate a `Town` namedtuple from `custom` parameters.

    Required parameters: `dep`, `com` and `nccenr`.
    """
    params = {
        'actual': '1',
        'modification': 0,
        'ancestors': '',
        'successors': '',
        'start_date': START_DATE,
        'end_date': END_DATE,
        'population': 'NULL',
        'parents': ''
    }
    custom['depcom'] = custom['dep'] + custom['com']
    params.update(custom)
    params['id'] = compute_id(params['depcom'], params['start_date'])
    params['start_datetime'] = datetime.combine(params['start_date'],
                                                datetime.min.time())
    params['end_datetime'] = datetime.combine(params['end_date'],
                                              datetime.max.time())
    return Town(**params)