def standard_get_fill_check_field(stdopts):
    if hasattr(stdopts, 'translation_model'):
        opts = stdopts.translation_model._meta
        for field in opts.fields:
            if ('language_code', 'master') in field.name:
                continue
            if not (field.blank or field.null):
                return field.name
    return None
dataset/ETHPy150Open hzlf/openbroadcast/website/multilingual/admin.py/standard_get_fill_check_field/swapped operands of `in`